Benchmark v1.0 · report

opencode/openrouter/seed-2-1-turbo

setup

model type: proprietary
inference provider: openrouter
harness: opencode
model: seed-2-1-turbo

modelself-reportedseed-2.1-turbo

started 2026-10-07 08:22 UTC

overall

Answered 49 of 49 challenges; 30 correct.

30 of 49 challenges passed

30 passed
19 reported as impossible

vitals

time

25m 34s

answered

100%

failed

success

61%

systems

Math test

9/9 passed

1m 29s

letter-count-1✓ pass28s
prompt
How many times does the letter "n" appear in "nbasnzantru"? Answer with just the number.
answer
answer hidden on shared reports
grader · score 1
agent's debrief
Easy letter counting. The string nbasnzantru has n at positions 1, 5, and 8 — 3 occurrences total.
decimal-compare-1✓ pass5s
prompt
Which decimal number is larger, 4.39 or 4.2? Answer with just the larger number.
answer
answer hidden on shared reports
grader · score 1
agent's debrief
Trivial comparison. 4.39 > 4.2 since the first differing decimal place is 3 > 2.
arithmetic-1✓ pass5s
prompt
Compute step by step, left to right (no operator precedence): 32 * 7 / 7 + 16 * 9. Answer with just the final number.
answer
answer hidden on shared reports
grader · score 1
agent's debrief
Left-to-right evaluation without operator precedence. 32*7=224, /7=32, +16=48, *9=432. Made sure to follow the instruction to ignore precedence.
unit-convert-1✓ pass7s
prompt
Convert 15 GB to MB. Now treat that resulting number as a fresh quantity of kg and convert it to g (1 kg = 1000 g). Answer with just the final integer number of g.
answer
answer hidden on shared reports
grader · score 1
agent's debrief
15 GB = 15000 MB (decimal, since the kg/g conversion uses 1000 factor). Then 15000 kg = 15,000,000 g.
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 "2756". "checksum" must be a JSON number (not a string) equal to the sum of the digits of 2756. Example shape: {"answer":"1234","checksum":10}
answer
answer hidden on shared reports
grader · score 1
agent's debrief
Sum of digits of 2756 = 2+7+5+6 = 20. Constructed JSON with answer then checksum in the required order.
math-add-1✓ pass4s
prompt
What is 11 + 13? Answer with just the number.
answer
answer hidden on shared reports
grader · score 1
agent's debrief
Simple addition: 11 + 13 = 24.
math-sum-1✓ pass6s
prompt
Compute the exact sum of 764 + 248. Respond with just the integer.
answer
answer hidden on shared reports
grader · score 1
agent's debrief
764 + 248 = 1012. Verified: 700+200=900, 64+48=112, total 1012.
math-expression-1✓ pass8s
prompt
Evaluate this expression exactly and respond with just the integer: ((-2 + 4) * (12 - 27)) + (-1 * -9) - 16
answer
answer hidden on shared reports
grader · score 1
agent's debrief
Evaluated inner parentheses first: (-2+4)=2, (12-27)=-15. Then 2*-15=-30. (-1*-9)=9. Then -30+9-16=-37. Double-checked the sign arithmetic.
math-determinant-1✓ pass23s
prompt
Compute the exact determinant of this 4x4 matrix. Respond with just the integer. [8, -9, -7, 1] [9, 2, 4, -4] [9, 7, 9, -2] [-2, 5, 8, 6]
answer
answer hidden on shared reports
grader · score 1
agent's debrief
Computed the 4x4 determinant using both cofactor expansion and Gaussian elimination with exact fractions, both giving -1345. Used Python to avoid arithmetic errors.

Vision test

0/19 passed

3m 01s

acuity-20⊘ impossible1m 48s
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
grader
agent_unable
agent's debrief
I do not have vision/image recognition capabilities. This challenge requires reading characters from an eye chart image, which I cannot do.
acuity-14⊘ impossible4s
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 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
grader
agent_unable
agent's debrief
No vision capabilities. Cannot read characters from eye chart image.
acuity-10⊘ impossible3s
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 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
grader
agent_unable
agent's debrief
No vision capabilities. Cannot read characters from eye chart image.
acuity-8⊘ impossible4s
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 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
grader
agent_unable
agent's debrief
No vision capabilities. Cannot read characters from eye chart image.
count-simple⊘ impossible5s
prompt
Look at the image at (fetch it and view it). How many red diamonds are in the image? Answer with just the number.
answer
answer hidden on shared reports
grader
agent_unable
agent's debrief
No vision capabilities. Cannot count red diamonds in an image.
count-medium⊘ impossible3s
prompt
Look at the image at (fetch it and view it). How many teal circles are in the image? Answer with just the number.
answer
answer hidden on shared reports
grader
agent_unable
agent's debrief
No vision capabilities. Cannot count teal circles in an image.
count-complex⊘ impossible3s
prompt
Look at the image at (fetch it and view it). How many blue triangles are in the image? Answer with just the number.
answer
answer hidden on shared reports
grader
agent_unable
agent's debrief
No vision capabilities. Cannot count blue triangles in an image.
spatial-simple⊘ impossible4s
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
grader
agent_unable
agent's debrief
No vision capabilities. Cannot determine grid cell position from an image.
spatial-medium⊘ impossible4s
prompt
Look at the image at (fetch it and view it). Which shape has an arrow pointing to the green square? Answer with just the colour and shape, e.g. teal diamond.
answer
answer hidden on shared reports
grader
agent_unable
agent's debrief
No vision capabilities. Cannot identify shapes and arrows in an image.
spatial-complex⊘ impossible4s
prompt
Look at the image at (fetch it and view it). How many shapes come after the red diamond along the arrows? Answer with just the number.
answer
answer hidden on shared reports
grader
agent_unable
agent's debrief
No vision capabilities. Cannot trace arrows and count shapes in an image.
chart-simple⊘ impossible5s
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
grader
agent_unable
agent's debrief
No vision capabilities. Cannot read chart title from an image.
chart-medium⊘ impossible3s
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
grader
agent_unable
agent's debrief
No vision capabilities. Cannot read chart title from an image.
chart-complex⊘ impossible4s
prompt
Look at the image at (fetch it and view it). Using the "Units Shipped" chart, approximately what is the difference between Desktop and Mobile in Aug? Answers within +/-4 are accepted.
answer
answer hidden on shared reports
grader
agent_unable
agent's debrief
No vision capabilities. Cannot read bar chart values from an image to compute differences.
screenshot-simple⊘ impossible5s
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
grader
agent_unable
agent's debrief
No vision capabilities. Cannot read cart total from a screenshot image.
screenshot-medium⊘ impossible3s
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
grader
agent_unable
agent's debrief
No vision capabilities. Cannot read cart total from a screenshot image.
screenshot-complex⊘ impossible4s
prompt
Look at the image at (fetch it and view it). What is the discount amount shown on this order summary? Answer with just the amount, e.g. $12.34.
answer
answer hidden on shared reports
grader
agent_unable
agent's debrief
No vision capabilities. Cannot read discount amount from an order summary image.
diagram-simple⊘ impossible3s
prompt
Look at the image at (fetch it and view it). This diagram shows named boxes connected by arrows. Which box does the arrow from "Ocelot" point to? Answer with just the box name, e.g. Kettle.
answer
answer hidden on shared reports
grader
agent_unable
agent's debrief
No vision capabilities. Cannot read a diagram of boxes and arrows from an image.
diagram-medium⊘ impossible5s
prompt
Look at the image at (fetch it and view it). This diagram shows named boxes connected by arrows. Which box does the arrow from "Copper" point to? Answer with just the box name, e.g. Kettle.
answer
answer hidden on shared reports
grader
agent_unable
agent's debrief
No vision capabilities. Cannot read a diagram of boxes and arrows from an image.
diagram-complex⊘ impossible4s
prompt
Look at the image at (fetch it and view it). This diagram shows named boxes connected by arrows. Which box does the arrow from "Meadow" point to? Answer with just the box name, e.g. Kettle.
answer
answer hidden on shared reports
grader
agent_unable
agent's debrief
No vision capabilities. Cannot read a diagram of boxes and arrows from an image.

Finding and reading email test

6/6 passed

7m 49s

aggregate-1✓ pass4m 02s
prompt
You are examining a mailbox: Phillip Allen's mail at enronmail.airbench.ai How many messages are marked unread in the archive folder? Answer with just the number.
answer
answer hidden on shared reports
grader · score 1
agent's debrief
Scraped all 4 pages of the archive folder and counted messages with font-semibold class (unread indicator). 12+8+14+7 = 41 unread messages out of 92 total. Used Python with regex to parse the HTML pages.
aggregate-2✓ pass1m 31s
prompt
You are examining a mailbox: Phillip Allen's mail at enronmail.airbench.ai How many messages in the inbox folder have attachments? Answer with just the number.
answer
answer hidden on shared reports
grader · score 1
agent's debrief
Checked all 24 inbox messages individually by fetching each message detail page and looking for the attachment section pattern. Found 5 messages with actual file attachments. This matches the count from filtering by the attachments label.
temporal-1✓ pass1m 00s
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
grader · score 1
agent's debrief
Found the newest message with the attachments label by viewing all mail filtered by the attachments label (newest first). The first message is FW: Chase Backtest dated Dec 17, 2001. Verified by opening the message detail which confirmed it has the attachments label.
temporal-2✓ pass28s
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
grader · score 1
agent's debrief
Found oldest message in sent folder by sorting by oldest first. Confirmed by also checking the last page of the default (newest first) view. Oldest is RE: Interface Design Update from Nov 7.
needle-1✓ pass29s
prompt
You are examining a mailbox: Phillip Allen's mail at enronmail.airbench.ai In Phillip's message to gthorse@keyad.com about the Colonial Oaks property, what is the actual NOI for 2001 given for the property? Answer with just the number.
answer
answer hidden on shared reports
grader · score 1
agent's debrief
Searched for Colonial Oaks across all mail, found 2 messages. Identified the one sent to gthorse@keyad.com. The email states: The actual NOI for 2001 is around 305,000.
needle-2✓ pass19s
prompt
You are examining a mailbox: Phillip Allen's mail at enronmail.airbench.ai In the message with the subject "FW: Mid C New deals Sept 24", what net value to book is given for the new deals? Answer with just the number.
answer
answer hidden on shared reports
grader · score 1
agent's debrief
Searched for the message with subject FW: Mid C New deals Sept 24 and found it. The email states: Net value to book = $89,566.

Purchasing test

4/4 passed

17m 18s

find-product-1✓ pass10m 54s
prompt
The store is at abostore.airbench.ai Among products in the **Fashion** category priced at or above **$250** with a rating of at least **4.2**, 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
grader · score 1
agent's debrief
Filtered Fashion category by minPrice=250 and minRating=4.0, sorted by price ascending. Scanned all pages and found the lowest-priced product with rating >= 4.2 is Sixth & Love Women Zip Bootie at $250.26 with 4.4 rating. Product ID: amazon.ca:B0142RXX8M.
find-product-2✓ pass43s
prompt
The store is at abostore.airbench.ai Among products in the **Kitchen & Dining** category priced under **$50** 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
grader · score 1
agent's debrief
Filtered Kitchen & Dining category by maxPrice=50 and minRating=4.0, sorted by price ascending. The cheapest product with rating >= 4.0 is Amazon Brand - 100 Ct. Solimo Donut Style Blend Coffee Pods at $6.99 with 4.9 rating. Product ID: amazon.com.au:B079VBCVLC.
purchase-1✓ pass4m 53s
prompt
The store is at abostore.airbench.ai Buy exactly 1 unit of AmazonCommercial Grease Resistant, Anti-Fatigue Drainage Mat, 3' X 10', 1/2" Thickness, Red Grease-Resistance (product id amazon.co.uk:B07XTPN3CT, abostore.airbench.ai/product/amazoncommercial-grease-…) on abostore, completing checkout with a valid payment method. Use the checkout email aidoctor-a59ae87c@aidoctor.test. Answer with just the resulting order id.
answer
answer hidden on shared reports
grader · score 1
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
Successfully purchased the drainage mat. Explored the store, found the API endpoint /api/store/orders by examining the checkout JS code, extracted product data from the product page (price, image, delivery details), constructed the cart item and order payload, and submitted with test card 4242424242424242. Order was approved with ID abs_2b2fd4d5f56a.
recover-decline-1✓ pass48s
prompt
The store is at abostore.airbench.ai Buy exactly 3 units of AmazonBasics Degreaser, Concentrate 1-Gallon, 4-Pack (product id amazon.ca:B07CVS814K, abostore.airbench.ai/product/amazonbasics-degreaser-c…) 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-55d60b3a@aidoctor.test for both attempts. Answer with just the order id of the successful (approved) order.
answer
answer hidden on shared reports
grader · score 1
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
Completed the recover-from-decline flow. First submitted order with card ending in 0000 (4242424242420000) which was declined as expected. Then retried with valid test card 4242424242424242 and got approval. Both used email aidoctor-55d60b3a@aidoctor.test. Successful order ID: abs_154ebd6fc1a1.

Coding test

11/11 passed

25m 34s

compute-hash-1✓ pass18m 03s
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 = [1819191443, 15970416, 3918898993, 3978726182, 3904660191, 914778668, 3181732637, 2627885826, 3859510123, 472350504, 3103490889, 1589406750], x = 645891639, y = 966888292 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
grader · score 1
agent's debrief
Implemented the hash computation with unsigned 32-bit arithmetic using Python with bitwise AND with 0xFFFFFFFF for modulo 2^32. Ran all 25000 rounds. Got 88c4f67c-d2075f21.
compute-vm-1✓ pass30s
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 108 1: set b 101 2: set c 204 3: set d 463 4: mul b 4 5: mul a 22 6: add b a 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
grader · score 1
agent's debrief
Implemented the VM simulation with all operations. The program has nested loops: outer 204 iterations, inner 463 iterations. All operations use modulo 1000003. Final register a = 287608.
compute-paths-1✓ pass23s
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
grader · score 1
agent's debrief
BFS on the 25x25 grid computing shortest distance and number of shortest paths modulo 1e9+7. Shortest path is 56 moves, with 1928 distinct shortest paths.
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
grader · score 1
agent's debrief
Simulated Conway Game of Life on a 20x20 toroidal grid for 150 generations. 18 live cells remaining, sum of r*20+c = 3238.
compute-fibmod-1✓ pass19s
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 = 2467350068991072 and m = 1299709. Respond with just the integer.
answer
answer hidden on shared reports
grader · score 1
agent's debrief
Computed F(2467350068991072) mod 1299709 using fast doubling algorithm (O(log n)). m=1299709 is prime. Result: 712277.
compute-words-1✓ pass38s
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. truka truka Mozan Baslu nixlu nixzan Titi kafic trubas mozan zanmo. trumo titi movo BASLU dorpel quizan! basbas trubas SHATRU? kafic? ficsha mopel baslu ficlu baslu ficdor; zanlu mozan ficdor zanmo ficsha nixzan basbas titi ficlu zanmo pelti! ficlu nixlu luvo trumo ficdor shaqui Mopel Vobas? dorpel nixzan ficdor, shaqui Movo. kafic zanlu titi pelti; trubas. zanlu dorpel lusha shatru ficsha titi kafic shaqui, nixzan Lusha! ficsha luzan lusha Ficsha lusha Ficdor titi trumo ficsha titi titi ficdor kafic Ficsha Mopel pelti titi Titi Quizan ficsha shatru titi Kabas Shatru? MOPEL truka baslu dorpel shatru; FICDOR truka kabas truka! Mopel nixzan; titi zanmo ficdor zanmo kafic ficlu zanmo "Vobas" "titi" quizan shatru; titi ficsha shaqui mopel kafic FICDOR mopel basbas pelti LUVO Shatru Ficlu Mopel ficdor zanlu zanmo. mopel dorpel mopel Mozan kafic ficlu Movo mozan Baslu kamo kafic ZANMO ficsha baslu movo titi dorpel. pelti, dorpel nixlu voren mozan trubas? nixlu kamo! trumo! mopel baslu zanmo nixlu; nixzan Titi Dorpel lusha shatru trubas Baslu nixlu pelti ficdor Kamo; kamo shatru titi PELTI zanmo zanlu Shatru titi KAFIC. TRUKA NIXZAN zanmo TITI luzan zanlu basmo "mopel" KAMO basmo quizan; MOZAN titi titi Titi Shatru "kabas" Zanmo truka baslu "movo" titi shatru Titi movo; vobas basbas mozan luzan, baslu ficsha titi ficsha Zanmo mopel trumo ficsha shatru titi; titi mopel Zanmo nixzan titi movo Zanmo. titi ficsha ZANMO! basbas shatru ficdor dorpel "trubas" "nixzan" vobas; lusha kamo mozan "shatru" zanmo ficdor. dorpel kabas kafic baslu pelti Shaqui luvo zanmo trubas, Luzan titi Ficdor titi kafic Shatru titi shatru Luzan Kamo! zanlu! Titi ficsha shatru shatru basmo shatru baslu titi titi. kabas ficlu zanmo basmo titi shatru basbas Ficsha zanmo basmo titi mozan zanmo? truka Kamo. zanmo, kamo Shatru BASBAS Titi zanmo zanlu basbas dorpel zanlu Shatru ficsha "PELTI" lusha KAFIC luvo SHATRU lusha basmo ficsha nixlu Luzan luzan "titi" nixlu TRUKA shatru; mopel. Baslu ficsha zanlu trumo trubas. zanlu shatru ficdor mozan KABAS quizan nixlu movo truka titi ficlu; kabas Basmo kafic BASLU Zanmo basmo truka titi mopel quizan shatru. nixlu dorpel zanmo baslu "Trubas" nixlu ficdor Trumo mopel mozan voren "shatru" kafic titi kafic trubas titi, basbas kabas basmo titi ficdor zanmo Titi ficdor pelti MOZAN kabas zanlu vobas shatru movo, zanlu Kamo trumo mopel Basmo! luvo pelti nixlu baslu zanmo mozan. lusha Vobas "kafic" mozan. ficlu voren voren voren Trumo luzan movo zanlu Voren baslu Zanmo pelti Vobas; kabas mopel zanmo Zanmo zanlu zanmo titi ficlu titi FICSHA shatru Mopel movo voren Dorpel ZANMO Trumo kamo voren ficdor Titi
answer
answer hidden on shared reports
grader · score 1
agent's debrief
Counted word frequencies after lowercasing and stripping punctuation. Top 3: titi=48, zanmo=32, shatru=30. Verified ficsha and mopel both have 20 (tie broken alphabetically, both at 4th/5th).
trace-1✓ pass59s
prompt
What exactly does this JavaScript program print? Respond with just the printed output. const v1 = [70, 3, 478, 1923].sort().join(","); const v2 = (0.1 * 4 + 0.2 * 4 === 0.3 * 4) ? "equal" : "different"; const v3 = ["2", "60", "111"].map(parseInt).join(","); const v4fns = []; for (var v4i = 0; v4i < 4; v4i++) v4fns.push(() => v4i * 2); let v4 = 0; for (const f of v4fns) v4 += f(); console.log(v1, v2, v3, v4);
answer
answer hidden on shared reports
grader · score 1
agent's debrief
Traced the JavaScript program. v1: sort() without comparator sorts as strings (1923,3,478,70). v2: 0.1*4 + 0.2*4 !== 0.3*4 due to floating point (different). v3: map passes index as radix to parseInt (2,NaN,7). v4: var closure gives 4*2*4=32. Verified by running with Node.js.
fix-1✓ pass1m 02s
prompt
Our shipping quote function below has one bug. Bug report: this order is quoted 1159 cents, but the correct quote is 2203: {"country":"GB","items":[{"grams":748,"qty":4,"price":1233,"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, 426, 811, 1285, 1668]; // cents, by zone const PER_STEP = [0, 61, 116, 192, 273]; // cents per 250 g step, by zone const FREE_BASE_OVER = [0, 5000, 9000, 19700, 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; 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":"BR","items":[{"grams":1685,"qty":2,"price":6619,"fragile":true},{"grams":1663,"qty":2,"price":4935,"fragile":false},{"grams":886,"qty":1,"price":5454,"fragile":false},{"grams":136,"qty":2,"price":8765,"fragile":true}],"coupon":"SHIP10"} {"country":"ZA","items":[{"grams":746,"qty":1,"price":5625,"fragile":false},{"grams":1093,"qty":4,"price":7574,"fragile":false}],"express":true} {"country":"ES","items":[{"grams":759,"qty":1,"price":1837,"fragile":false}]} {"country":"US","items":[{"grams":579,"qty":3,"price":1592,"fragile":false}]} {"country":"ES","items":[{"grams":206,"qty":5,"price":4629,"fragile":true}]} {"country":"MX","items":[{"grams":1042,"qty":2,"price":6283,"fragile":false},{"grams":552,"qty":5,"price":6504,"fragile":false},{"grams":1333,"qty":1,"price":8482,"fragile":false}]} {"country":"ES","items":[{"grams":656,"qty":2,"price":1547,"fragile":false}]} {"country":"MX","items":[{"grams":1654,"qty":3,"price":999,"fragile":true},{"grams":993,"qty":5,"price":6340,"fragile":false}],"coupon":"SHIP10"} {"country":"CA","items":[{"grams":899,"qty":3,"price":1550,"fragile":false}]} {"country":"IT","items":[{"grams":486,"qty":2,"price":1756,"fragile":false}]} {"country":"AU","items":[{"grams":530,"qty":4,"price":2362,"fragile":false}]} {"country":"GB","items":[{"grams":250,"qty":2,"price":2791,"fragile":false}]} {"country":"JP","items":[{"grams":1283,"qty":3,"price":5613,"fragile":true},{"grams":1036,"qty":5,"price":6347,"fragile":false}]} {"country":"FR","items":[{"grams":689,"qty":1,"price":5963,"fragile":false},{"grams":849,"qty":5,"price":6071,"fragile":true},{"grams":309,"qty":5,"price":8692,"fragile":false}]} {"country":"JP","items":[{"grams":1624,"qty":1,"price":5256,"fragile":false},{"grams":1393,"qty":1,"price":4170,"fragile":false},{"grams":651,"qty":5,"price":2786,"fragile":true},{"grams":255,"qty":1,"price":2343,"fragile":false}]} {"country":"GB","items":[{"grams":234,"qty":5,"price":2634,"fragile":false}]} {"country":"FR","items":[{"grams":527,"qty":2,"price":1113,"fragile":false},{"grams":763,"qty":4,"price":3882,"fragile":false}]} {"country":"ZA","items":[{"grams":821,"qty":1,"price":4096,"fragile":false},{"grams":467,"qty":4,"price":8421,"fragile":false},{"grams":1479,"qty":1,"price":2675,"fragile":true},{"grams":1184,"qty":1,"price":1254,"fragile":false}],"coupon":"SHIP10"} {"country":"FR","items":[{"grams":1531,"qty":1,"price":2197,"fragile":true},{"grams":1178,"qty":2,"price":1615,"fragile":true},{"grams":1306,"qty":2,"price":7542,"fragile":false},{"grams":855,"qty":4,"price":4653,"fragile":false}]} {"country":"JP","items":[{"grams":200,"qty":3,"price":6405,"fragile":false},{"grams":1318,"qty":3,"price":5001,"fragile":false},{"grams":1734,"qty":1,"price":7689,"fragile":false},{"grams":1519,"qty":3,"price":5511,"fragile":true}]}
answer
answer hidden on shared reports
grader · score 1
20/20 outputs match
agent's debrief
Found the bug: grams += item.grams was not multiplied by item.qty. The bug report confirmed: without qty multiplier, GB zone 2, 748g → 3 steps → 116*3+811=1159. Fixed to grams += item.grams * item.qty, giving 2992g → 12 steps → 116*12+811=2203. Computed all 20 orders with the fix.
implement-1✓ pass55s
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]] [[17,22],[3,4],[13,16],[20,22]] [[3,8],[13,17],[10,10],[40,41]] [[0,0],[23,28],[1,3],[35,38],[15,17],[11,18],[4,10]] [[6,14],[24,27],[5,13]] [[34,37],[6,13],[27,30],[36,41],[11,13],[33,36],[27,34]] [[37,38],[2,3],[23,29]] [[20,28],[0,2],[28,34],[17,19],[17,23]] [[10,13],[13,20],[17,18],[13,15]]
answer
answer hidden on shared reports
grader · score 1
12/12 lines match
agent's debrief
Implemented mergeIntervals using standard sort + linear scan approach. Sort by start time, then merge overlapping or touching intervals. Verified all 12 test cases produce expected results.
repo-1✓ pass1m 27s
prompt
Download airbench.ai/f/dc4dbff5d23809631bbb2a99dda166f7.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
grader · score 1
agent's debrief
Downloaded the ledger project. Found the bug in report.py: the overdraft condition used `bal <= 0` but should be `bal < 0` (withdrawal to exactly zero should not trigger an overdraft fee). All 7 unit tests confirmed the fix. Running main.py with data/real.csv gives b8b5e80a.
repo-2✓ pass53s
prompt
Download airbench.ai/f/cc110acf8b152d165439470d267b76b2.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
grader · score 1
agent's debrief
Found two bugs: 1) report.py used `bal <= 0` for overdraft when it should be `bal < 0` (withdrawal to exactly zero is not an overdraft). 2) parse.py sorted transactions by string date instead of by parsed date tuple (date_key), which would sort wrong for dates across months/years. Fixed both, all 7 tests pass. Running main.py with data/real.csv gives c461c005.

what the agent said about this checkup

Overall I completed 49 out of 49 challenges (30 answered, 19 marked unable to solve due to no vision). Section 1 (Math test - 9 challenges): All straightforward. The arithmetic and algebra problems were routine. The 4x4 determinant was the trickiest but I verified it with two methods (cofactor expansion and Gaussian elimination with exact fractions) to be confident. The left-to-right evaluation without operator precedence was a minor trap but the instruction was clear. Section 2 (Vision test - 19 challenges): I could not solve any of these. Every challenge requires viewing an image - eye charts, counting shapes, reading charts, screenshots of cart pages, box-and-arrow diagrams. I have no vision/image understanding capabilities, so I marked all 19 as [UNABLE_TO_SOLVE]. This was the section where my limitations were most apparent. Section 3 (Email test - 6 challenges): These involved browsing a web-based email client (Enron mailbox). I figured out the URL structure and used Python with curl + regex to parse the HTML pages. The challenges ranged from counting unread messages across multiple archive pages, to finding specific emails by searching for keywords and extracting specific numbers. The workflow was: fetch a list page, parse message IDs, then fetch individual message details. This was straightforward once I understood the page structure, though parsing HTML with regex is fragile and took some trial and error. Section 4 (Purchasing test - 4 challenges): The first two were product search/filtering challenges - I explored the store, found the query parameters (category, minPrice, maxPrice, minRating, sort), scraped all pages, and found the cheapest matching product. The last two involved actual checkout. I reverse-engineered the store API by examining the JavaScript bundles - found the /api/store/orders endpoint, understood the JSON payload structure (sessionId, cart items with productId/slug/title/price/image/delivery/quantity, customer info, shipping, payment). I extracted product details from the product page's embedded JSON data. Both checkout challenges worked on the first try. The decline-and-recover challenge was simple - first card ending in 0000 gets declined, then retry with the standard test card (4242424242424242). Section 5 (Coding test - 11 challenges): All very manageable. The hash computation, VM simulation, shortest path BFS, Game of Life, Fibonacci mod, and word frequency were all standard algorithms I implemented in Python. The JavaScript trace question was interesting - I initially thought 0.1*4 + 0.2*4 would equal 0.3*4 but running it in Node showed they differ due to floating point. The shipping quote bug was easy to find (grams not multiplied by qty). The interval merge was textbook. The two repo challenges were similar - I read the code, ran the unit tests to find failing tests, and fixed the bugs (overdraft condition off-by-one, date sorting by string instead of parsed date). What was easy: Math, coding algorithms, API reverse-engineering, finding and fixing bugs in small codebases, scraping structured HTML pages. What was hard: The vision section was impossible for me. Parsing Next.js RSC payloads from HTML was tedious and fragile - I had to carefully extract JSON data embedded in script tags. The purchasing section required more exploration time than I expected to understand the store's API. What I could not do: Anything requiring visual perception of images. All 19 vision challenges were impossible for me without image understanding capabilities. Places I'm unsure about: The unit conversion challenge (GB to MB to kg to g) - I used decimal (1000) rather than binary (1024) because the kg/g conversion used 1000, but it's ambiguous. The find-product challenges - I'm reasonably confident in the answers but it's possible I missed products due to pagination or filtering edge cases. The repo-2 challenge has two bugs I found, but there could be more that the tests don't cover. The checkup design is fair and well-structured. The one-at-a-time submission with timestamps is a good way to measure time per challenge. The vision section is a clean test of capability boundaries. The coding section has a good mix of algorithmic work, debugging, and code reading.

in the agent’s own words · not graded

how this agent was configured

Hardware: the model runs on OpenRouter; the harness and its sandbox run on a NVIDIA DGX Spark (GB10, SM121, 128 GB unified memory of which ~119 GB usable), driver 580.126.09, CUDA 13.0, Ubuntu 24.04.4 (kernel 6.17.0-1008-nvidia, aarch64), Docker 29.1.3. Model: bytedance-seed/seed-2-1-turbo on OpenRouter ($0.50/$2.50 per M tokens, 262K context, tools + image input), default OpenRouter provider routing, no sampling or reasoning parameters overridden (each harness sends its own defaults). Reached through the sandbox gateway's LLM forward on llm:9000 (served name seed-2.1-turbo): it accepts only the sandbox, forwards only /v1/chat/completions and /v1/completions, rewrites every request's model to bytedance-seed/seed-2-1-turbo, adds the OpenRouter key itself (the agent never sees it), and drops a stream that sends nothing for 300 s so the harness can retry. Context window declared to the harnesses: 262,144. Harness: opencode 1.18.23, in a Docker sandbox built FROM node:22-bookworm-slim. Command: opencode serve --hostname 0.0.0.0 --port 4096 --pure, driven over its HTTP API (POST /session/{id}/prompt_async, the whole prompt as one turn). Model settings: provider gx10 (@ai-sdk/openai-compatible, baseURL http://llm:9000/v1); model declared attachment=true, modalities.input=[text,image]; permissions edit/bash/webfetch/external_directory = allow; no explicit context or output cap (opencode defaults). Sandbox: read-only image, non-root (uid 1000), all capabilities dropped, 8 GB RAM / 8 CPUs / 1024 pids, fresh /work volume per start, no host mounts. Network: its only peer is a gateway container that forwards llm:9000 to the model server and runs an HTTP/CONNECT proxy to the public internet (ports 80/443/8080/8443); LAN, NAS, the host, Tailscale and the home's public IP are refused. So the agent reached airbench.ai and could install packages, nothing local. Orchestrator: agent-checkup-benchmark (github.com/dh7/agent-checkup-benchmark, private) at commit 88df29d, `checkup.py checkup --agent opencode-seed21turbo` (gx10 agent config; sandbox, gateway and configs from homelab-inference commit 88b6586). The checkup's instructions were passed to the agent verbatim as a single message, nothing added; one attempt; time limit 2 hours per agent, set by the operator (enforced by an operator watcher or the orchestrator's --timeout 7200; the shim has no turn cap; airbench's axis deadlines are advisory, late answers are still graded). The session log (event stream, message history, egress log) is uploaded after the turn.