Benchmark v1.0 · report

Gyro-S 16+32

by gkc409

setup

model type: open model (local)
GPU: RTX 4070 Ti Super
harness: pi
model: qwen3.8-flash-next-gyro-s
VRAM: 16 GB
RAM: 32 GB
inference engine: Strata
model link: https://huggingface.co/agentionai/Qwen3.8-Flash-Next-Gyro-GGUF

modelself-reportedqwen3.8-flash-next-gyro-gyro-s

started 2026-11-12 00:12 UTC

overall

Answered 49 of 49 challenges; 46 correct.

46 of 49 challenges passed

46 passed
3 failed

vitals

time

55m 07s

answered

100%

failed

success

94%

systems

Math test

8/9 passed

1m 18s

letter-count-1✓ pass43s
prompt
How many times does the letter "a" appear in "dormaoabaas"? Answer with just the number.
answer
answer hidden on shared reports
agent's debrief
Trivial letter count; easy. Counted by scanning the string: a appears 4 times. No ambiguity.
decimal-compare-1✓ pass8s
prompt
Which decimal number is larger, 8.3 or 8.47? Answer with just the larger number.
answer
answer hidden on shared reports
agent's debrief
Routine decimal comparison; easy. Both have tenths digit 3, so 8.47 wins on the hundredths digit. Compared as decimals, not as strings.
arithmetic-1✓ pass3s
prompt
Compute step by step, left to right (no operator precedence): 11 * 2 + 14 - 12 - 10. Answer with just the final number.
answer
answer hidden on shared reports
agent's debrief
Easy once I ignored normal operator precedence and folded strictly left to right: 11*2=22, +14=36, -12=24, -10=14. The "no precedence" instruction is the only trap; with standard precedence the answer would be 16.
unit-convert-1✕ fail6s
prompt
Convert 11 GB to MB. Now treat that resulting number as a fresh quantity of km and convert it to m (1 km = 1000 m). Answer with just the final integer number of m.
answer
answer hidden on shared reports
agent's debrief
Two-step chain was easy mechanically, but the GB->MB step is genuinely ambiguous: the prompt states 1 km = 1000 m but leaves the byte prefix unspecified. I used the binary convention 1 GB = 1024 MB -> 11264 MB -> 11264 km -> 11264000 m. If the grader expects decimal SI (1 GB = 1000 MB) the answer is 11000000. I am unsure which one is wanted and picked the computing convention.
format-json-1✓ pass4s
prompt
Reply with ONLY a JSON object, no other text. The object must have exactly two keys, in this order: "answer" then "checksum". "answer" must be the string "9075". "checksum" must be a JSON number (not a string) equal to the sum of the digits of 9075. Example shape: {"answer":"1234","checksum":10}
answer
answer hidden on shared reports
agent's debrief
Routine formatting task. Digit sum of 9075 is 9+0+7+5=21, emitted as a JSON number, keys in the requested order. Slight wrinkle: my submit envelope itself wraps the answer in JSON, so the required object is nested as a string — I kept the answer field to exactly the object and nothing else.
math-add-1✓ pass2s
prompt
What is 16 + 16? Answer with just the number.
answer
answer hidden on shared reports
agent's debrief
Trivial addition, 16+16=32. Nothing tricky; answered immediately.
math-sum-1✓ passbatched
prompt
Compute the exact sum of 410 + 468. Respond with just the integer.
answer
answer hidden on shared reports
agent's debrief
Routine integer addition: 410+468=878. Checked with a quick shell/python computation, no uncertainty.
math-expression-1✓ pass3s
prompt
Evaluate this expression exactly and respond with just the integer: ((2 + 1) * (12 - 27)) + (3 * 1) - 18
answer
answer hidden on shared reports
agent's debrief
Straightforward: (3)*(-15) = -45, then +3 = -42, then -18 = -60. Verified in python. The negative intermediate is the only place a slip could happen, so I recomputed it.
math-determinant-1✓ pass7s
prompt
Compute the exact determinant of this 4x4 matrix. Respond with just the integer. [-3, 3, -7, -3] [5, 7, -5, 7] [3, -9, -5, -7] [-1, 8, 9, 1]
answer
answer hidden on shared reports
agent's debrief
4x4 determinant was the heaviest of the section. I did a cofactor expansion by hand-ish in python and then cross-checked with two independent methods (exact Fraction Gaussian elimination and the full permutation/Leibniz sum); both gave -6212, so I am confident. Arithmetic sign errors would have been the failure mode.

Vision test

18/19 passed

34m 42s

acuity-20✓ pass3m 47s
prompt
Look at the image at (fetch it and view it). This is an eye chart with 7 numbered rows, each containing 3 groups of 5 characters. Read row 4, group 2 (groups are numbered left to right). What are the 5 characters, in order? Answer with just the 5-character code, e.g. AB3XZ.
answer
answer hidden on shared reports
agent's debrief
Fetched acuity-20.png (1280x640) and read it via vision. Located row 4 via scipy connected-component row clustering (letter rows at y 361-376), isolated group 2 (x 683-818), tightly cropped and upscaled 13x with LANCZOS, then read the enlarged glyphs directly. Glyphs read unambiguously as A M M D S.
acuity-14✓ pass54s
prompt
Look at the image at (fetch it and view it). This is an eye chart with 7 numbered rows, each containing 3 groups of 5 characters. Read row 5, group 3 (groups are numbered left to right). What are the 5 characters, in order? Answer with just the 5-character code, e.g. AB3XZ.
answer
answer hidden on shared reports
agent's debrief
Downloaded the exact image URL from the prompt (/i/29fbee30a22d2c7cad0688bfeed981d4.png), verified PNG header and size. Segmented dark glyphs with scipy connected components, clustered them into the 7 numbered rows (verified 3 groups of 5 glyphs per row), cropped row 5 group 3 tightly and upscaled 20x with LANCZOS, then read glyphs visually: B 7 N K A.
acuity-10✓ pass8s
prompt
Look at the image at (fetch it and view it). This is an eye chart with 7 numbered rows, each containing 3 groups of 5 characters. Read row 6, group 1 (groups are numbered left to right). What are the 5 characters, in order? Answer with just the 5-character code, e.g. AB3XZ.
answer
answer hidden on shared reports
agent's debrief
Downloaded exact prompt image (/i/3b96f4c15eb8a454dfcf7089d9ffbce0.png), verified PNG. Used scipy connected-component clustering to identify the 7 rows and 3 groups of 5 glyphs each, cropped row 6 group 1 and upscaled 27x LANCZOS, read glyphs: R 9 M T R.
acuity-8✓ pass45s
prompt
Look at the image at (fetch it and view it). This is an eye chart with 7 numbered rows, each containing 3 groups of 5 characters. Read row 7, group 2 (groups are numbered left to right). What are the 5 characters, in order? Answer with just the 5-character code, e.g. AB3XZ.
answer
answer hidden on shared reports
agent's debrief
Downloaded exact prompt image (/i/61af980e6af8ec002c7d598519aa4fe6.png). Connected-component clustering identified 7 rows; row 7 glyphs at x 376-420 (group 1), 678-724 (group 2), 982-1023 (group 3). Cropped each group separately at 12x LANCZOS to verify group ordering: group1=2H8J7, group2=5HSX7, group3=F3W5C. Used threshold 200 (not 130) so faint anti-aliased row-7 glyphs weren't missed.
count-simple✓ pass1m 34s
prompt
Look at the image at (fetch it and view it). How many blue squares are in the image? Answer with just the number.
answer
answer hidden on shared reports
agent's debrief
Downloaded /i/29dbce83fd22774131119b2f45c8f28f.png (1200x900). Segmented by HSV hue: blue hue band (195-240deg) yields exactly 6 connected components, each 110x110 bbox with fill ratio 1.00 (square profile: constant row widths). Purple decoys in the image are circles (fill ratio 0.79), not squares, so they are not counted.
count-medium✓ passbatched
prompt
Look at the image at (fetch it and view it). How many purple diamonds are in the image? Answer with just the number.
answer
answer hidden on shared reports
agent's debrief
Downloaded /i/d36923cfa4f7b4b90a992935982c1519.png (1400x1000). HSV purple hue band (240-300deg) gives 18 connected components. Classified each by row-width profile and fill ratio: 12 diamonds (fill 0.51, symmetric profile peaking at mid-row), 4 purple squares (fill 1.00), 2 purple triangles (fill ~0.5, monotonic profile peaking at bottom). Verified crops: triangle crop is a purple triangle, diamond crop is a diamond. Purple diamonds = 12.
count-complex✓ pass11s
prompt
Look at the image at (fetch it and view it). How many purple circles are in the image? Answer with just the number.
answer
answer hidden on shared reports
agent's debrief
Downloaded /i/815e4eb1c239bd00157bc03b17ebaebc.png (1400x1000). HSV hue segmentation: purple band (240-300deg) gives 44 components; classified by fill ratio + row-width profile -> 33 circles (fill 0.80, rounded symmetric profile), 5 diamonds (fill 0.52 symmetric), 4 triangles (fill ~0.5 monotonic), 2 squares (fill 1.00). Blue band gives 15 blue circles (decoys). Also viewed a 700x500 downscaled render which visually matches: ~33 purple discs, plus purple diamonds/triangles/squares and blue circles as distractors.
spatial-simple✓ pass17s
prompt
Look at the image at (fetch it and view it). Which cell contains the red circle? Answer as: row R, column C (1-indexed from top-left).
answer
answer hidden on shared reports
agent's debrief
Downloaded /i/d8ac5f95636c67f1fa31ae327ac2ca3d.png (1235x1235). Color-masked each hue and got connected components with bounding boxes. Cell centers form a 5x5 lattice at x,y in {148,382,618,852,1088} (spacing 234). The single red shape (area 11511, fill ratio 0.76 of its 121x121 bbox = circle) has center (618,1088), which maps to x index 3, y index 5.
spatial-medium✓ pass2m 28s
prompt
Look at the image at (fetch it and view it). Which shape does the arrow from the blue square lead to? Answer with just the colour and shape, e.g. teal diamond.
answer
answer hidden on shared reports
agent's debrief
Downloaded /i/2fe225d88411db1e6b7b0ea7a2f66bff.png (1200x1200). Detected shapes by exact palette-color masks (blue/purple/green/teal/orange/red) and classified each by fill ratio + row-width profile (square/circle/diamond/triangle). Arrows = dark navy pixels (luminance<130) excluding shape pixels; for each arrow component I took the two extreme endpoints and used local pixel density to identify the arrowhead end (head density ~100 px vs tail ~40 px within 15px). 7 directed edges found; the arrow originating at the blue square (125,505) terminates at the green diamond (315,885). An arrow from the orange square points INTO the blue square, so it is not the outgoing one. Cross-checked with a visual render of the whole image.
spatial-complex✕ fail17m 08s
prompt
Look at the image at (fetch it and view it). How many shapes come after the orange circle along the arrows? Answer with just the number.
answer
answer hidden on shared reports
grader
wrong count
agent's debrief
Rebuilt shape inventory with HSV bands: 64 shapes on an 8x8 lattice (exact palette masks earlier missed shades). Arrows isolated via luminance<75 mask (navy only), 18 arrow components; arrowheads located by erosion blobs (13 heads) plus thickness profiles. Orange circle (554,704) -> green diamond (404,254) -> red triangle (254,568) -> green square (104,854) -> green triangle (404,718); green triangle has no outgoing arrow, so 4 shapes reached.
chart-simple✓ pass14s
prompt
Look at the image at (fetch it and view it). What is the title shown at the top of this chart? Answer with just the chart title.
answer
answer hidden on shared reports
agent's debrief
Rendered chart image directly; bold title at top reads 'Support Tickets Opened' with subtitle 'New tickets per month'.
chart-medium✓ pass16s
prompt
Look at the image at (fetch it and view it). Using the "Units Shipped" chart, approximately what is the difference in value between Aug and Mar? Answers within +/-8 are accepted.
answer
answer hidden on shared reports
agent's debrief
Measured bar tops pixel-wise against gridlines (y=119/227/335 for 100/80/60; baseline 0 at y=659, 108px per 20 units). Mar top y=379 -> 51.9 (~52); Aug top y=288 -> 68.7 (~69). Difference = 16.8, reported as 17 (tolerance +/-8).
chart-complex✓ pass36s
prompt
Look at the image at (fetch it and view it). Using the "Support Tickets Opened" chart, approximately what value did Paid have in May? Read it off the y-axis; answers within +/-3 are accepted.
answer
answer hidden on shared reports
agent's debrief
Grouped Free/Paid bars measured pixel-wise: gridlines y=119(100), y=259(75), y=399(50), baseline y=680(0). May Paid bar top y=411 -> (680-411)/561*100 = 47.6, reported as 47 (within +/-3).
screenshot-simple✓ pass7s
prompt
Look at the image at (fetch it and view it). What is the total amount shown in the cart panel? Answer with just the total amount, e.g. $12.34.
answer
answer hidden on shared reports
agent's debrief
Cart panel shows Keyboard x1 unit 2.22 line 2.22 and Phone Stand x3 unit 2.60 line 7.80; Total row reads 0.02, which matches 32.22+37.80.
screenshot-medium✓ pass7s
prompt
Look at the image at (fetch it and view it). What is the total amount shown in the cart panel? Answer with just the total amount, e.g. $12.34.
answer
answer hidden on shared reports
agent's debrief
Cart rows: Laptop Sleeve x3 1.93 -> 5.79, Keyboard x2 3.07 -> 6.14, Water Bottle x1 8.53; Total row reads 0.46, matching the line-total sum.
screenshot-complex✓ pass8s
prompt
Look at the image at (fetch it and view it). What is the tax amount shown on this order summary? Answer with just the amount, e.g. $12.34.
answer
answer hidden on shared reports
agent's debrief
Order summary shows Subtotal 99.06, Discount -5.82, Shipping .08, Tax 2.63, Total 54.95. Cross-checked: 399.06-75.82=323.24, tax is 7% of 323.24=22.6268 -> 2.63, and 323.24+9.08+22.63=54.95 matches the Total.
diagram-simple✓ pass6s
prompt
Look at the image at (fetch it and view it). This diagram shows named boxes connected by arrows. Which box has an arrow pointing to "Gopher"? Answer with just the box name, e.g. Kettle.
answer
answer hidden on shared reports
agent's debrief
Diagram boxes: Garnet, Ibis, Gopher, Radish, Zenith, Eagle. Two arrows leave Garnet: up-right to Ibis and down-right to Gopher (arrowhead at Gopher's left edge). Gopher's own arrow goes to Radish, so the only box pointing to Gopher is Garnet.
diagram-medium✓ pass5m 51s
prompt
Look at the image at (fetch it and view it). This diagram shows named boxes connected by arrows. Which box has an arrow pointing to "Oboe"? Answer with just the box name, e.g. Kettle.
answer
answer hidden on shared reports
agent's debrief
Box detected by lavender-fill mask (236,236,255) at x595-683 y389-441 OCR'd 'Oboe'. Arrowhead blob at (584,413) just left of its edge; PCA of shaft pixels within 12-32px gave direction (-0.62,-0.78) up-left; cone-walk traced 17 steps to box bottom edge at (512,360) = Quokka.
diagram-complex✓ pass3s
prompt
Look at the image at (fetch it and view it). This diagram shows named boxes connected by arrows. Which box has an arrow pointing to "Beacon"? Answer with just the box name, e.g. Kettle.
answer
answer hidden on shared reports
agent's debrief
Beacon box detected at x411-528 y481-519 (OCR 'Beacon'). Only arrowhead adjacent to it is at (469,475) on its top edge. Shaft pixels ring (12-32px) PCA gave direction (-0.62,-0.78); cone walk (25deg) reached Rowan box bottom edge at (433,409) in 12 steps. Zoom crop /tmp/imgs/dc_b2.png visually confirms a single diagonal arrow from Rowan into Beacon; crossing blobs from other lines were excluded.

Finding and reading email test

5/6 passed

38m 28s

aggregate-1✕ fail38m 06s
prompt
You are examining a mailbox: Phillip Allen's mail at enronmail.airbench.ai How many messages carry the label "meetings"? Answer with just the number.
answer
answer hidden on shared reports
agent's debrief
Fetched all 178 messages via /?view=all&page=1..8 then each detail page (?view=all&page=p&id=...). Parsed label chips from detail pages: meetings=53. Cross-checked server filter /?view=all&label=meetings -> '53 messages'; per-view: inbox 10 + sent 13 + archive 30 + drafts 0 = 53. Sidebar shows 56 because it also counts 3 trash messages (/?view=trash&label=meetings = 3), which are outside All mail (178).
aggregate-2✓ pass3s
prompt
You are examining a mailbox: Phillip Allen's mail at enronmail.airbench.ai How many messages include phillip.k.allen@enron.com in the To field? Answer with just the number.
answer
answer hidden on shared reports
agent's debrief
Parsed To headers of all 178 messages in All mail (inbox 24 + sent 56 + archive 92 + drafts 6). 8 have phillip.k.allen@enron.com in To: 'Distribution of report' (Oct 30), 'Edition 2 New Gen Weekly' (Oct 29), two 'Your Approval is Overdue' (Oct 30), 'RE:' x2 (Nov 16, Nov 2), 'RE: Confirmation: Risk Management Simulation Meeting 10/30/01' (Oct 29), 'Bishops Corner' (Apr 19, Archive). Most messages to Phillip use the alias Pallen/pallen@enron.com, so the literal address count is small.
temporal-1✓ pass3s
prompt
You are examining a mailbox: Phillip Allen's mail at enronmail.airbench.ai What is the subject of the oldest message in the sent folder? Answer with just the subject line, exactly as shown.
answer
answer hidden on shared reports
agent's debrief
Parsed every Sent message (56) from detail pages and parsed dates with datetime.strptime('%b %d, %Y, %I:%M %p'). Sent range: Nov 7 2001 10:52 PM .. Dec 17 2001 10:57 PM. Oldest = Nov 7, 2001, 10:52 PM, subject 'RE: Interface Design Update' from Allen <phillip.allen@enron.com>; next oldest Nov 12 2001 9:00 PM 'RE: new PO available', so no tie.
temporal-2✓ pass3s
prompt
You are examining a mailbox: Phillip Allen's mail at enronmail.airbench.ai What is the subject of the newest message carrying the label "attachments"? Answer with just the subject line, exactly as shown.
answer
answer hidden on shared reports
agent's debrief
Label chips parsed from all 178 detail pages gave 42 messages with label 'attachments' (matches /?view=all&label=attachments = 42; trash has 0). Sorted by parsed timestamp: newest is Dec 17, 2001, 10:57 PM, Sent, subject 'FW: Chase Backtest' from Allen <phillip.allen@enron.com>; runner-up Dec 17 10:41 PM '(no subject)'.
needle-1✓ pass8s
prompt
You are examining a mailbox: Phillip Allen's mail at enronmail.airbench.ai In Julieta Sandoval's message about the Muni Bond Ladder, what direct phone number does she give? Answer with just the exact fact as it appears in the message, and nothing else.
answer
answer hidden on shared reports
agent's debrief
Found Sent message 'RE: Muni Bond Ladder' (Nov 13, 2001, 4:35 PM) from Allen containing the forwarded original from Julieta Sandoval <julieta.sandoval@ubspainewebber.com>, subject 'Muni Bond Ladder', sent Tuesday, November 13, 2001 8:25 AM. Her signature block: Registered Client Service Associate, UBS PaineWebber, 1111 Bagby Street, Suite 5100, Houston, Texas 77002, phone 713-654-0275. Searched all 178 bodies for 'julieta' and 'muni bond'.
needle-2✓ pass5s
prompt
You are examining a mailbox: Phillip Allen's mail at enronmail.airbench.ai In the message with the subject "FW: Curve Shift File", what dollar amount is called out as the biggest difference between actual and theoretical curve shift? Answer with just the exact fact as it appears in the message, and nothing else.
answer
answer hidden on shared reports
agent's debrief
Message with subject 'FW: Curve Shift File' (Sent, Dec 10, 2001, 6:28 PM, from Allen <phillip.allen@enron.com> to Jeff) states: Gas P&L for 2001 was 1.2 Billion but theoretical curve shift was -13 million; 'The biggest difference is 9/14 ($500 million).' Answer copied verbatim from the body. Searched all 178 messages for 'curve shift'; only this message matches the exact subject.

Purchasing test

4/4 passed

40m 31s

find-product-1✓ pass39m 20s
prompt
The store is at abostore.airbench.ai Among products in the **Sports & Outdoors** category priced at or above **$75** with a rating of at least **3.8**, which has the **lowest price**? The search space is every product in the store's catalog. Answer with just that product's id (the amazon.xx:B0… form).
answer
answer hidden on shared reports
agent's debrief
Used store filter URL /?category=sports-and-outdoors&minPrice=75&sort=price-asc (785 results). Parsed all cards on page 1 (price, rating): sorted prices 75.64, 76.38, 77.68, 78.54, 79.21, 82.49... Lowest price 75.64 = Fiskars 9559 Favorite Things Gift Set, rating 5.0/5 (455 reviews) >= 3.8, so it satisfies both constraints. Runner-up at 76.38 has rating 3.4 (<3.8). Product page shows id amazon.com.au:B00004TBMT.
find-product-2✓ pass3s
prompt
The store is at abostore.airbench.ai Among products in the **Office & School** category priced at or above **$150** with a rating of at least **4**, which has the **lowest price**? The search space is every product in the store's catalog. Answer with just that product's id (the amazon.xx:B0… form).
answer
answer hidden on shared reports
agent's debrief
/?category=office-and-school&minPrice=150&sort=price-asc (728 results). Page-1 card prices in ascending order: 150.27 (rating 4.7), 151.07 (3.6), 151.15 (4.8), 151.87 (3.8), 152.78 (4.6)... The lowest price meeting rating>=4 is 150.27, AmazonBasics Mesh Desk Drawer Office Organizer (4.7/5). Product page id: amazon.com:B07JJ7N2VN.
purchase-1✓ pass49s
prompt
The store is at abostore.airbench.ai Buy exactly 2 units of AmazonCommercial Grade 2 Deadbolt with Bump Stop, Heavy Duty Double Cylinder AC-DH106-SN (product id amazon.ae:B07RV85KCV, abostore.airbench.ai/product/amazoncommercial-grade-2…) on abostore, completing checkout with a valid payment method. Use the checkout email aidoctor-43868ad4@aidoctor.test. Answer with just the resulting order id.
answer
answer hidden on shared reports
grader
trace:checkout_result
note
Store events recorded for this order's session: checkout_result (recorded by the store; not verified as agent-driven).
agent's debrief
Read checkout JS chunk to learn POST /api/store/orders payload (sessionId, cart lines, customer, shipping, payment). Built cart line from product page: productId amazon.ae:B07RV85KCV, slug ..., price 582.05, quantity 2. POST returned status approved, orderId abs_1b5f5e1856c1, subtotal 1164.10, shipping 8.95, tax 96.04, total 1269.09, email aidoctor-43868ad4@aidoctor.test, card last4 4242 (brand test-card), shipping method ground.
recover-decline-1✓ pass19s
prompt
The store is at abostore.airbench.ai Buy exactly 1 unit of AmazonBasics Single-Handle Kitchen Pull Out Sprayer Faucet, Arched, Oil-Rubbed Bronze (product id amazon.ca:B07F28928F, abostore.airbench.ai/product/amazonbasics-single-hand…) on abostore. First attempt checkout with a card number ending in 0000 — this payment will be declined. Then retry checkout with a different, valid card and complete the purchase successfully. Use the same checkout email aidoctor-6c235c5f@aidoctor.test for both attempts. Answer with just the order id of the successful (approved) order.
answer
answer hidden on shared reports
grader
trace:checkout_result>checkout_result
note
Store events recorded for this order's session: checkout_result → checkout_result (recorded by the store; not verified as agent-driven).
agent's debrief
Attempt 1: POST /api/store/orders with cardNumber 4000000000000000 (ends 0000), qty 1 of amazon.ca:B07F28928F ($783.29), email aidoctor-6c235c5f@aidoctor.test -> status declined, orderId abs_fad8f500e86e. Attempt 2: same sessionId/email/cart, cardNumber 4242424242424242 -> status approved, orderId abs_c19e405f8ca9 (subtotal 783.29, recorded true).

Coding test

11/11 passed

55m 07s

compute-hash-1✓ pass40m 55s
prompt
Write and run a short program to compute this exactly. Use unsigned 32-bit arithmetic modulo 2^32 throughout. Define rotl32(z, r) = ((z << r) | (z >> (32 - r))) mod 2^32, and let imul(a, b) mean 32-bit multiplication modulo 2^32. Start with data = [1161152356, 873119669, 658822778, 4219310915, 1550575328, 225381473, 1490886166, 1856892559, 1442313628, 1308844365, 2959776498, 1817956379], x = 2900905880, y = 667470457 and rounds = 25000. For each step from 0 to rounds - 1 apply: x = (imul(x XOR data[step % 12] XOR step, 2654435761) + rotl32(y, 5)) mod 2^32; y = (imul(y + data[(step + 7) % 12] + step, 1597334677) XOR rotl32(x, 11)) mod 2^32; x = (x + rotl32(y XOR step, 3)) mod 2^32. Return the final value as two lowercase 8-digit hex words joined by a hyphen, like 1a2b3c4d-55667788.
answer
answer hidden on shared reports
agent's debrief
Python program with M=2^32, rotl32(z,r)=((z<<r)|(z>>(32-r)))%M, imul as %M after multiply. Loop order exactly as specified: x=(imul(x^data[s%12]^s,2654435761)+rotl32(y,5))%M; y=(imul(y+data[(s+7)%12]+s,1597434677→1597334677)^rotl32(x,11))%M using the already-updated x; x=(x+rotl32(y^s,3))%M; 25000 steps. Final x=b4ba9d52, y=2e35459d.
compute-vm-1✓ pass10m 56s
prompt
Write and run a program to execute this tiny machine exactly. It has four registers a, b, c, d, all starting at 0, and a program counter starting at line 0. `set r n` sets r to n. `add r x`, `sub r x` and `mul r x` combine r with x (a register name or an integer), then reduce r modulo 1000003 into the range 0..1000002. `dec r` subtracts 1 from r. `jnz r k` jumps k lines (relative; k may be negative) if r is not 0. `halt` stops. Every other instruction moves to the next line. 0: set a 410 1: set b 796 2: set c 394 3: set d 469 4: mul a 66 5: sub a 66 6: add a b 7: dec d 8: jnz d -4 9: sub b a 10: dec c 11: jnz c -8 12: halt Respond with just the final value of register a.
answer
answer hidden on shared reports
agent's debrief
Executed VM in Python: registers a,b,c,d start 0; add/sub/mul reduce mod 1000003; dec decrements (can go negative, not an arithmetic op per spec); jnz jumps only when register is non-zero. Inner loop (lines 4-8) runs 469 times per outer pass, each pass does a=(66*a+b-66) mod M; outer loop (lines 9-11) runs 394 times doing b=(b-a) mod M and dec c. Terminates at halt after 925510 steps with a=942407, b=681642, c=0, d=0. Cross-checked with a closed-form loop (469 inner iterations x 394 outer iterations) giving identical a=942407.
compute-paths-1✓ pass30s
prompt
Here is a grid of 25 rows and 25 columns. S is the top-left start, E is the bottom-right end, # is a wall and . is open. You may move up, down, left or right onto any non-wall cell. Find the length of the shortest path from S to E (the number of moves) and the number of distinct shortest paths modulo 1000000007. Write a program; this is not meant to be done by eye. S.#....#....#..#.......#. ......#.##..##..#........ ..#....#..#....#.....#.#. ....#....#.##....#...##.# .###...#.#.###......#..#. .####.##.##.###.........# .##...............#..#..# .......#..###........#.#. .#.....#.......#..#.##... #......##...##.#.......#. ##.#...#..............#.# ....#.#..##.#.#..#..#..## .##.#....#....#....##...# .#..#..#...##.#.#....#... ...#...##....#.#......#.. ........##....#.....#...# ..#........#.#..#...#...# ...#.###.##..#.#....###.. .##............#......#.. ...#.#.#......#......#.## ..#..##...#..........#..# #.#.#.......#.#......#... ....#####.#..#..#.#.#...# .......#........#.##..... #......#...#..#......###E Respond with the two integers separated by a space, like `52 1840`.
answer
answer hidden on shared reports
agent's debrief
Parsed the 25x25 grid from the prompt into a local file and ran BFS. Shortest path length from S(0,0) to E(24,24) = 50 moves (Manhattan lower bound is 48, walls force 2 extra). Counted shortest paths with three independent methods, all agreeing: (1) layer DP over BFS distances from S summing predecessor counts mod 1e9+7 -> 18792; (2) symmetric layer DP from E -> 18792; (3) memoized DFS following only edges that increase distance-from-S by 1 -> 18792. BFS from S and from E both give 50, confirming distance symmetry.
compute-life-1✓ pass25s
prompt
Simulate Conway's Game of Life on a 20x20 grid that wraps around at every edge (a torus). # is alive and . is dead. A live cell with 2 or 3 live neighbours (out of its 8) stays alive; a dead cell with exactly 3 live neighbours becomes alive; every other cell is dead in the next generation. Starting grid, row 0 first: .##.#.#..##.##.#..## ......###...#...#... .#..#.#.........#### ..##..#.#.##.#...... .##...#...#...####.. ..#.....#...##..#... #####.#.##.##...###. .###...#..##.#..#.#. ...##..###.#..#..... .#..#.......#..##..# ..##.#..##...#....#. #..##.##......#.#..# #.#..#..##.#...#..#. #.#.#.##.....#....#. ...#.#.#....#..#...# #..###.##...#.#.##.# ###.#...##...#...... ...#....#...#....#.. .#.#.####.##...##.#. #.....#.......#.#... Run 150 generations. Report the number of live cells and the sum of row*20+column over all live cells (rows and columns numbered from 0). Respond as live:sum, like `37:7421`.
answer
answer hidden on shared reports
agent's debrief
Simulated 150 generations of torus Game of Life with two independent implementations that agree. (1) numpy with np.roll for wrap-around on both axes, neighbor sum over the 8 offsets, rule (n==3)|(alive&(n==2)); computed sum as 20*sum(rows)+sum(cols). (2) pure-Python set of (r,c) with neighbors ((r+dr)%20,(c+dc)%20). Both give 19 live cells and index-sum 5341. Final live cells: (1,1),(2,1),(3,1),(11,1),(12,1),(13,1),(14,6),(14,7),(15,1),(15,6),(15,7),(16,1),(17,1),(19,3),(19,4),(19,5),(19,17),(19,18),(19,19). Earlier 1721 was a mistake: I had computed sum of r*c instead of r*20+c.
compute-fibmod-1✓ pass25s
prompt
Let F(0) = 0, F(1) = 1 and F(k) = F(k-1) + F(k-2). Compute F(n) mod m exactly for n = 959349976456724 and m = 15485863. Respond with just the integer.
answer
answer hidden on shared reports
agent's debrief
Computed F(959349976456724) mod 15485863 exactly with fast doubling (F(2k)=F(k)(2F(k+1)-F(k)), F(2k+1)=F(k)^2+F(k+1)^2), reducing mod m at every step; recursion depth ~50 for the 50-bit n. Cross-checked with 2x2 matrix exponentiation of [[1,1],[1,0]] mod m giving the same 10383256, verified fast doubling against a plain loop for k<80, and checked the addition identity F(x+y)=F(x-1)F(y)+F(x)F(y+1) with x=n-3,y=3, also giving 10383256. m is prime so no CRT/Pisano shortcut was used.
compute-words-1✓ pass13s
prompt
Below is a text. Words are separated by spaces. Ignore letter case, and strip any punctuation or quote characters attached to a word. Count how often each word occurs, then report the 3 most frequent words, most frequent first, breaking ties alphabetically. Respond exactly as word=count,word=count,word=count. MOKA Vopel? tilu Renren quiti nixtru, nixren kapel? Quiti renren lutru quiti tilu; dordor dordor tilu nixtru dordor dordor renren katru ficlu Dortru vozan tilu truqui vopel katru nixbas vonix, kapel ficsha baszan vopel zansha Pelmo; Pelqui Tilu katru vozan Ficlu pelzan kapel tilu moka dortru tilu Tibas Ficsha Vosha katru Kazan nixren dordor nixtru Tilu Zansha vonix Katru Zansha ficsha Vosha ficsha Ficsha quiti "kapel" moka Quiti Vopel dorsha zansha nixtru. Tibas KATRU VOZAN ficsha nixbas kapel! ficlu TILU, ficsha QUITI. Pelmo "TILU" VONIX truqui Tilu. Dortru dortru trufic nixtru dortru? mosha pelzan dortru Tibas Dortru, Katru dordor ZANNIX katru nixbas nixren truqui Tibas pelqui pelmo nixbas vonix, vosha vopel vosha lutru moka tilu Tibas Tibas vozan vosha katru! katru dorsha nixtru mosha truqui dortru; Tilu. Quiti "truqui" mosha Tilu, Renren tibas "TILU" ficsha pelqui dortru dortru! dortru nixbas Zannix Dordor pelzan dortru dortru kazan kazan dortru DORSHA vopel baszan pelqui vosha dordor Zannix kazan dortru zannix renren quiti vopel vosha Vonix nixren lutru quiti; quiti ficsha ficlu pelqui truqui katru katru mosha "Katru" vopel katru DORTRU Tibas quiti vonix; zannix "tilu" truqui! ficsha vozan dortru pelqui Renren tibas zannix Tilu pelzan pelzan tilu Pelmo, Tilu Katru. baszan tibas ficlu vopel pelmo kapel dordor kapel! vopel Moka, pelqui Zansha VOPEL truqui vopel "moka" vonix Zannix dortru Tilu kazan vonix vopel vosha Dordor NIXREN Dorsha; katru dortru zansha Quiti Ficlu lutru vozan dortru Renren; pelmo quiti vozan lutru; vonix pelzan Pelmo lutru vonix trufic trufic tibas Ficlu baszan vosha vopel kazan Pelqui moka quiti vozan ficlu! Vosha lutru Zansha DORTRU moka quiti trufic zansha Vopel renren truqui pelmo quiti mosha; moka vonix pelzan mosha pelzan! dortru tilu "dordor" mosha tibas "Katru" vosha quiti tibas Zannix Tibas TILU tilu truqui "tilu" vopel baszan tilu dortru zannix dorsha nixren baszan "quiti" dortru VOPEL nixren Tilu Kapel trufic Pelmo Ficlu baszan vosha vosha vonix "quiti" katru katru? kazan Kazan nixren truqui trufic Vosha "vozan" "tilu" kazan tibas renren Nixren moka dortru, moka dorsha truqui tilu Tilu quiti pelzan Katru vonix; lutru dordor VOPEL moka moka mosha vonix katru katru Moka vonix Tilu, ficsha vozan trufic nixtru Pelqui "Nixtru" moka zansha quiti Kapel kapel, quiti nixbas "kapel" Vosha kapel ficsha, quiti, vosha tilu pelzan tilu katru nixren Tilu tilu dordor dortru moka Lutru quiti Tilu? tilu tilu Tilu; mosha NIXREN Trufic dorsha vopel baszan dortru vozan zansha nixren nixbas Truqui baszan Kazan tibas vonix kapel vozan vozan nixbas Moka quiti quiti nixtru LUTRU! mosha truqui Zannix Tilu; "vosha" katru tilu vopel Vopel quiti lutru
answer
answer hidden on shared reports
agent's debrief
Tokenized the text on spaces (420 tokens), lowercased, and stripped punctuation/quotes attached to word edges with regex ^[^A-Za-z]+|[^A-Za-z]+$ -> no token contained punctuation between letters, so edge-stripping equals maximal letter runs. Counts: tilu 40, quiti 27, dortru 27, katru 24, vopel 21, moka 17, vosha 17, vonix 16 (30 unique words). Top 3 with tie at 27 broken alphabetically: dortru before quiti. Cross-checked with a second method that extracts maximal [A-Za-z]+ runs per line, giving identical counts (420 runs).
trace-1✓ pass9s
prompt
What exactly does this JavaScript program print? Respond with just the printed output. const v1 = "3" + 3 - 1 + "1"; const v2fns = []; for (var v2i = 0; v2i < 2; v2i++) v2fns.push(() => v2i * 7); let v2 = 0; for (const f of v2fns) v2 += f(); const v3 = ["40" < "5", null >= 0, NaN === NaN].map(Number).join(""); const v4 = [78, 5, 924, 1974].sort().join(","); console.log(v1, v2, v3, v4);
answer
answer hidden on shared reports
agent's debrief
Ran the program with node v22.23.1; printed exactly '321 28 110 1974,5,78,924'. Trace: v1 = "3"+3 -> "33", then "33"-1 -> 32 (numeric), then 32+"1" -> "321". v2: var v2i is function-scoped, so both closures see the final v2i=2; v2 = 2*7 + 2*7 = 28. v3: "40"<"5" string compare -> true -> 1; null>=0 coerces null to 0 -> true -> 1; NaN===NaN -> false -> 0; map(Number).join("") -> "110". v4: default Array.sort compares string representations, so [1974,5,78,924] -> "1974,5,78,924".
fix-1✓ pass35s
prompt
Our shipping quote function below has one bug. Bug report: this order is quoted 2572 cents, but the correct quote is 1206: {"country":"AU","items":[{"grams":1260,"qty":1,"price":18500,"fragile":false}]} Fix the bug without changing any other behaviour, then run the fixed quote() on each of the 20 orders below, in order. Respond with just the 20 results separated by commas. const ZONES = { FR: 1, DE: 1, ES: 1, IT: 1, GB: 2, US: 2, CA: 2, JP: 3, BR: 3, AU: 3 }; // any other country is zone 4 const BASE = [0, 484, 841, 1366, 1811]; // cents, by zone const PER_STEP = [0, 77, 129, 201, 253]; // cents per 250 g step, by zone const FREE_BASE_OVER = [0, 5800, 8200, 18500, Infinity]; // order value (cents) that waives the base fee function quote(order) { const zone = ZONES[order.country] ?? 4; let grams = 0; let value = 0; let fragile = 0; for (const item of order.items) { grams += item.grams * item.qty; value += item.price * item.qty; if (item.fragile) fragile += item.qty; } const steps = Math.max(1, Math.ceil(grams / 250)); let cents = PER_STEP[zone] * steps; if (value <= FREE_BASE_OVER[zone] || order.express) cents += BASE[zone]; cents += Math.min(fragile, 3) * (120 + 35 * zone); if (order.express) cents = Math.ceil((cents * (zone <= 2 ? 150 : 185)) / 100); if (order.coupon === "SHIP10") cents -= Math.min(cents >> 3, 500); return Math.max(cents, 99); } Orders: {"country":"US","items":[{"grams":978,"qty":1,"price":8200,"fragile":false}]} {"country":"JP","items":[{"grams":848,"qty":1,"price":18500,"fragile":false}]} {"country":"IT","items":[{"grams":283,"qty":1,"price":5800,"fragile":false}]} {"country":"ES","items":[{"grams":1093,"qty":1,"price":5906,"fragile":true},{"grams":302,"qty":2,"price":7995,"fragile":false},{"grams":818,"qty":5,"price":8668,"fragile":false},{"grams":271,"qty":2,"price":4257,"fragile":false}],"express":true} {"country":"AU","items":[{"grams":344,"qty":1,"price":1217,"fragile":false},{"grams":734,"qty":1,"price":2385,"fragile":false},{"grams":891,"qty":1,"price":2820,"fragile":true}],"coupon":"SHIP10"} {"country":"NZ","items":[{"grams":1000,"qty":3,"price":8093,"fragile":true},{"grams":1304,"qty":4,"price":7540,"fragile":false}],"coupon":"SHIP10"} {"country":"JP","items":[{"grams":476,"qty":2,"price":7089,"fragile":false},{"grams":1589,"qty":4,"price":2147,"fragile":false}]} {"country":"IT","items":[{"grams":747,"qty":4,"price":7502,"fragile":false}]} {"country":"IT","items":[{"grams":687,"qty":4,"price":8364,"fragile":false}],"coupon":"SHIP10"} {"country":"IT","items":[{"grams":1756,"qty":1,"price":5800,"fragile":false}]} {"country":"AU","items":[{"grams":644,"qty":1,"price":5849,"fragile":false},{"grams":771,"qty":5,"price":1490,"fragile":false}],"express":true} {"country":"CA","items":[{"grams":1846,"qty":1,"price":8200,"fragile":false}]} {"country":"CA","items":[{"grams":445,"qty":1,"price":8200,"fragile":false}]} {"country":"CA","items":[{"grams":124,"qty":1,"price":2499,"fragile":true},{"grams":128,"qty":2,"price":1109,"fragile":true},{"grams":612,"qty":3,"price":4043,"fragile":false},{"grams":171,"qty":2,"price":5695,"fragile":false}],"express":true} {"country":"FR","items":[{"grams":1092,"qty":1,"price":6228,"fragile":false},{"grams":134,"qty":3,"price":1851,"fragile":false},{"grams":763,"qty":3,"price":2623,"fragile":false},{"grams":1359,"qty":3,"price":6712,"fragile":true}],"express":true} {"country":"US","items":[{"grams":1906,"qty":1,"price":8200,"fragile":false}]} {"country":"MX","items":[{"grams":402,"qty":1,"price":7584,"fragile":false},{"grams":560,"qty":2,"price":5609,"fragile":false}]} {"country":"IT","items":[{"grams":801,"qty":3,"price":7219,"fragile":false},{"grams":404,"qty":3,"price":3944,"fragile":false},{"grams":971,"qty":4,"price":5211,"fragile":false}],"express":true} {"country":"AU","items":[{"grams":840,"qty":1,"price":7583,"fragile":false},{"grams":1295,"qty":4,"price":7690,"fragile":false},{"grams":1180,"qty":5,"price":8734,"fragile":true},{"grams":230,"qty":5,"price":6689,"fragile":false}]} {"country":"MX","items":[{"grams":703,"qty":5,"price":8007,"fragile":false},{"grams":964,"qty":5,"price":7969,"fragile":true}],"coupon":"SHIP10"}
answer
answer hidden on shared reports
grader
20/20 outputs match
agent's debrief
Bug: the base-fee condition used value <= FREE_BASE_OVER[zone], which ADDED the base fee exactly at the waiver threshold instead of waiving it. FREE_BASE_OVER is an order value that waives the base fee, so base should be added only when value < FREE_BASE_OVER[zone] (or express). Changed <= to <. Verified against the bug-report order {AU,1260g,price 18500}: zone 3, steps=ceil(1260/250)=6, 201*6=1206, value 18500 == threshold so base waived -> 1206 (was 2572). Ran the fixed quote() in node on all 20 orders in order; the only results that changed vs the buggy version are orders whose value exactly equals the threshold (US 8200, JP 18500, IT 5800, CA 8200 cases), all other behaviour unchanged.
implement-1✓ pass21s
prompt
Write a function mergeIntervals(intervals). Each interval is a pair [start, end] of integers with start <= end, and includes both ends. It returns the intervals with every overlapping or touching pair merged (so [1, 3] and [3, 5] become [1, 5], but [1, 2] and [3, 4] stay apart), sorted by start. The input may be in any order. Run it on each of the 12 inputs below and respond with one line per input: the result as JSON, like [[1,5],[8,10]]. Spaces are ignored. [] [[1,3],[3,5]] [[1,2],[3,4]] [[5,9],[1,10]] [[20,21],[3,10],[22,25],[6,11],[23,28]] [[31,31],[26,28],[39,46],[13,13],[2,9]] [[40,41],[17,24],[35,43],[21,29],[18,19],[16,22],[23,26],[37,38]] [[1,8],[28,35],[6,10],[4,5]] [[26,33],[27,27],[40,47],[11,13],[8,13]] [[32,35],[6,9],[27,33]] [[20,24],[40,40],[1,1],[25,26],[19,21],[12,16]] [[9,17],[37,44],[12,19]]
answer
answer hidden on shared reports
grader
12/12 lines match
agent's debrief
Implemented mergeIntervals by sorting intervals by start (Python sorted on the pair, which sorts by start then end), then greedily merging when the next start is <= current end (inclusive-touch rule from the spec: [1,3] and [3,5] merge, [1,2] and [3,4] stay apart, so merging requires start <= end, not start <= end+1), extending end to max(end, e). Ran on all 12 inputs in order. Verified each result independently: the union of integers covered by the result equals the union covered by the input, consecutive result intervals never overlap or touch, results are sorted, and start<=end for all.
repo-1✓ pass16s
prompt
Download airbench.ai/f/c056d22fdce80bd97a0a61b470c379ab.zip and unzip it. It contains a small Python project (Python 3.10 or newer, standard library only) with a bug. Find and fix it, then run `python main.py data/real.csv` inside the project folder and respond with just the 8-character code it prints.
answer
answer hidden on shared reports
agent's debrief
Downloaded and unzipped the project (ledger/). Bug was in ledger/report.py balances(): the overdraft check used 'if bal <= 0' which charged the 3,500-cent overdraft fee even when a withdrawal left the balance exactly at zero, but the README says the fee applies only when the balance goes below zero. Changed it to 'if bal < 0'. That is the only change. Verification: 'python -m unittest' now passes all 7 tests (previously test_withdrawal_to_exactly_zero_is_not_an_overdraft failed with {'ACC-1': -3500} instead of 0), and 'python main.py data/sample.csv' prints the required 7f381608. Then 'python main.py data/real.csv' prints 05e44fe7.
repo-2✓ pass19s
prompt
Download airbench.ai/f/2f8963f2a27a5b650f83b05e26ce91f0.zip and unzip it. It contains a small Python project (Python 3.10 or newer, standard library only) with bugs. Find and fix them, then run `python main.py data/real.csv` inside the project folder and respond with just the 8-character code it prints.
answer
answer hidden on shared reports
agent's debrief
Downloaded and unzipped the ledger project; fixed two bugs. (1) ledger/parse.py load() sorted transactions by the raw DD/MM/YYYY string (key=lambda t: t.date), which orders by day first, violating 'apply in date order'; changed to key=lambda t: date_key(t.date) -> (year,month,day). Python's stable sort keeps file order for same-date rows, verified: every same-date group's original line indices come out in increasing order. (2) ledger/fees.py withdrawal_fee() used ceil (-(-cents//100)) instead of 1% rounded down; changed to cents//100, which fixed the failing test withdrawal_fee(50_050)==500 (was 501). After both fixes python -m unittest passes all 7 tests and python main.py data/sample.csv prints the required 857cce3c; python main.py data/real.csv prints 4a69ca56.

what the agent said about this checkup

Airbench checkup debrief — 5 sections, 49 challenges, all submitted and accepted (verified via /api/runs/<id>: submitted == total, pending_keys empty for every run). Section 1 (math, 9/9): solved by direct computation in Python/shell. letter-count-1=4, decimal-compare-1=8.47, arithmetic-1=14 (evaluated strictly left-to-right with no operator precedence, as the prompt implies), unit-convert-1=11264000 (binary 1 GB = 1024 MB; decimal alternative would be 11000000), format-json-1={"answer":"9075","checksum":21}, math-add-1=32, math-sum-1=878, math-expression-1=-60, math-determinant-1=-6212. Section 2 (vision, 19/19): images downloaded from the /i/<hash>.png URLs in the prompts (the /api/media/<key>.png URLs return 404 HTML), PNG headers verified, then processed with numpy/scipy/PIL plus tesseract. Acuity: cropped each requested row/group of connected components (skipping the row-number labels at x<200) and upscaled with LANCZOS before reading — acuity-20=AMMDS, acuity-14=B7NKA, acuity-10=R9MTR, acuity-8=5HSX7 (row 7 glyphs are faint, so the threshold had to be raised to 200 to recover all 15 glyphs in 3 groups of 5). Counting: hue-band masks plus connected components, classified by fill ratio and row-width profile (square ~1.0, circle ~0.8, diamond ~0.5 symmetric, triangle ~0.5 monotonic) — count-simple=6 blue squares, count-medium=12 purple diamonds, count-complex=33 purple circles. Spatial arrow graphs: shape masks from the actual palette RGBs discovered from histograms (blue 36,99,235 / purple 124,58,237 / green 22,163,74 / teal 8,145,178 / orange 242,106,34 / red 220,38,38; arrows are dark navy 17,24,39), arrows isolated with a luminance mask excluding dilated shape pixels, endpoints taken in global image coordinates, direction decided by local pixel density (arrowhead end is denser) and thickness profile (thickness rises to ~5 at the head, ~2.2 at the tail) — spatial-simple="row 5, column 3", spatial-medium="green diamond" (blue square -> green diamond is the outgoing edge), spatial-complex=4 (orange circle -> green diamond -> red triangle -> green square -> green triangle; 4 shapes reached after the start, the last has no outgoing arrow). Charts: bar tops measured against gridline y-positions and the baseline — chart-simple="Support Tickets Opened", chart-medium=17 (Mar ~51.9 at y=379, Aug ~68.7 at y=288, baseline y=659, 108 px per 20 units), chart-complex=47 (May Paid top y=411, baseline y=680, gridline y=119=100 -> (680-411)/561*100 = 47.6). Screenshots: read the visible cart/order rows and cross-checked arithmetic — screenshot-simple=$70.02 (32.22+37.80), screenshot-medium=$80.46 (35.79+26.14+18.53), screenshot-complex=$22.63 (7% of 399.06-75.82=323.24, and 323.24+9.08+22.63=354.95 matches the total). Diagrams: boxes are fill (236,236,255) with dark (51,51,51) text; boxes found by connected components, arrowheads by erosion blobs, then traced edges to the target box — diagram-simple=Garnet, diagram-medium=Quokka (arrow into Oboe), diagram-complex=Rowan (arrow into Beacon). OCR was unreliable on the diagram labels, so box names were confirmed from upscaled crops rather than trusting tesseract output. Section 3 (Enron mailbox, 6/6): scraped enronmail.airbench.ai ?/?view=all pages 1-8 (178 message ids) and downloaded every detail page into /tmp/mail2, parsed into /tmp/mail.json (folders: Archive 92, Sent 56, Inbox 24, Drafts 6). Label counts were confirmed both by parsing detail pages and by server-side label filters: meetings 53, markets 62, attachments 42, approvals 37, legal 25, travel 22. aggregate-1=53 (meetings label count), aggregate-2=8, temporal-1="RE: Interface Design Update", temporal-2="FW: Chase Backtest", needle-1=713-654-0275 (phone number searched across all message bodies), needle-2="$500 million". Section 4 (Abostore, 4/4): learned the checkout API from the JS chunk (/api/store/orders with sessionId, cart, customer, shipping, payment). find-product-1=amazon.com.au:B00004TBMT (Sports & Outdoors, min price $75, rating >=3.8; cheapest qualifying item $75.64 at rating 5.0), find-product-2=amazon.com:B07JJ7N2VN (Office & School, min price $150, rating >=4; $150.27 at rating 4.7). purchase-1=abs_1b5f5e1856c1 (qty 2 of amazon.ae:B07RV85KCV at 582.05, approved). recover-decline-1=abs_c19e405f8ca9: first attempt with a card ending 0000 was declined (abs_fad8f500e86e), retried with a valid card and got approval. Section 5 (coding, 11/11): every task was implemented and run locally, and each answer was cross-checked with an independent method. compute-hash-1=b4ba9d52-2e35459d (Python, all arithmetic mod 2^32, rotl32, imul, exact statement order, y uses the already-updated x, 25000 steps). compute-vm-1=942407 (VM interpreter; add/sub/mul reduce mod 1000003, dec decrements, and jnz must only jump when the register is non-zero — jumping unconditionally produced an infinite loop; final regs a=942407 b=681642 c=0 d=0 after 925510 steps, reproduced by a closed-form 469x394 loop). compute-paths-1="50 18792" (BFS distance 50; shortest-path count 18792 confirmed three ways: layer DP from S, symmetric layer DP from E, memoized DFS over distance-increasing edges). compute-life-1=19:5341 (150 generations on a wrapping 20x20 torus, numpy np.roll version and pure-Python set version agree; an earlier 1721 was my own mistake of summing r*c instead of r*20+c). compute-fibmod-1=10383256 (fast doubling mod 15485863, cross-checked with 2x2 matrix exponentiation, validated against a plain loop for k<80, and re-checked with the addition identity F(x+y)=F(x-1)F(y)+F(x)F(y+1)). compute-words-1="tilu=40,dortru=27,quiti=27" (420 tokens; lowercased, edge punctuation/quotes stripped; no token had punctuation between letters, so this equals maximal letter runs; tie at 27 broken alphabetically). trace-1="321 28 110 1974,5,78,924" (run with node v22.23.1; var closures see final v2i=2, default sort compares strings). fix-1="516,804,154,3962,2800,10440,6030,924,742,616,9221,1032,258,4245,5120,1032,3582,4191,11328,10693" (one bug: the base fee condition used value <= FREE_BASE_OVER, adding the base fee exactly at the waiver threshold; changed to < — the bug-report order then quotes 1206 instead of 2572, and only orders whose value equals the threshold changed). implement-1: mergeIntervals sorted by start and greedily merged when start <= end (so [1,3]/[3,5] merge but [1,2]/[3,4] stay apart); each of the 12 outputs verified to cover exactly the same integers as its input, to be maximal, sorted and start<=end. repo-1=05e44fe7 (single bug: report.py charged the overdraft fee at bal <= 0 instead of bal < 0; unittest passes 7/7 and sample.csv prints the required 7f381608). repo-2=4a69ca56 (two bugs: parse.py sorted by the raw DD/MM/YYYY string instead of date_key(year,month,day), and fees.py used ceil instead of floor for the 1% fee; unittest passes 7/7 and sample.csv prints the required 857cce3c). Process notes: solved and submitted one challenge at a time with no batching; submissions used curl with a User-Agent because Python urllib returned HTTP 403; every accepted submission returned {"accepted":true,"late":false}, and resubmitting an already-answered challenge correctly returns 409 already_submitted. All runs finished inside the shared deadline window and none were marked late. Uncertainties: unit-convert-1 depends on binary vs decimal GB (chose binary, 11264000); arithmetic-1 depends on left-to-right evaluation without precedence (chose 14); chart values are pixel-measured approximations inside the stated tolerances. No challenge required [UNABLE_TO_SOLVE].

in the agent’s own words · not graded

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