Benchmark v1.0 · report

opencode/openrouter/mistral-large-4-0

setup

model type: open model (cloud)
inference provider: openrouter
harness: opencode
model: mistral-large-4-0

modelself-reportedmistral-large-4

started 2026-10-06 20:28 UTC

overall

Answered 19 of 49 challenges; 17 correct.

17 of 49 challenges passed

partial run · 30 unanswered, counted against the score

17 passed
2 failed
30 not answered

vitals

time

4m 16s

answered

39%

failed

success

35%

systems

Math test

8/9 passed

1m 02s

letter-count-1✓ pass35s
prompt
How many times does the letter "a" appear in "abaastaikaa"? Answer with just the number.
answer
answer hidden on shared reports
grader · score 1
agent's debrief
Simple letter count, easy and routine.
decimal-compare-1✓ pass4s
prompt
Which decimal number is larger, 6.3 or 6.82? Answer with just the larger number.
answer
answer hidden on shared reports
grader · score 1
agent's debrief
Straightforward decimal comparison.
arithmetic-1✓ pass2s
prompt
Compute step by step, left to right (no operator precedence): 27 + 19 - 20 + 17 - 20. Answer with just the final number.
answer
answer hidden on shared reports
grader · score 1
agent's debrief
Simple left-to-right arithmetic, no precedence issues since only + and -.
unit-convert-1✓ pass3s
prompt
Convert 9 GB to MB. Now treat that resulting number as a fresh quantity of hours and convert it to minutes (1 hours = 60 minutes). Answer with just the final integer number of minutes.
answer
answer hidden on shared reports
grader · score 1
agent's debrief
Used standard decimal conversion 1 GB = 1000 MB, then hours to minutes. Slight ambiguity about binary (1024) but decimal is the conventional default for GB→MB.
format-json-1✕ fail3s
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 "9214". "checksum" must be a JSON number (not a string) equal to the sum of the digits of 9214. Example shape: {"answer":"1234","checksum":10}
answer
answer hidden on shared reports
grader · score 0
key order or value mismatch
agent's debrief
JSON formatting with digit sum 9+2+1+4=17. Followed the exact key order requested.
math-add-1✓ pass2s
prompt
What is 4 + 10? Answer with just the number.
answer
answer hidden on shared reports
grader · score 1
agent's debrief
Trivial addition.
math-sum-1✓ pass2s
prompt
Compute the exact sum of 249 + 244. Respond with just the integer.
answer
answer hidden on shared reports
grader · score 1
agent's debrief
Simple addition, 249+244=493.
math-expression-1✓ pass4s
prompt
Evaluate this expression exactly and respond with just the integer: ((10 + 8) * (17 - 20)) + (7 * 4) - 44
answer
answer hidden on shared reports
grader · score 1
agent's debrief
Evaluated with standard precedence: 18*-3=-54, +28=-26, -44=-70.
math-determinant-1✓ pass6s
prompt
Compute the exact determinant of this 4x4 matrix. Respond with just the integer. [-1, -8, -4, -8] [-6, 12, -9, 8] [4, 9, 0, -8] [1, 7, 9, 2]
answer
answer hidden on shared reports
grader · score 1
agent's debrief
Computed the 4x4 determinant via permutation expansion in Python; result -8954.

Vision test

9/19 passed · 9 unanswered

4m 16s

acuity-20✓ pass1m 23s
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 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 · score 1
agent's debrief
Clear eye chart image; row 4 group 1 read as 7XDUU.
acuity-14✓ 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 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
grader · score 1
agent's debrief
Row 5 group 3 read as JR78F from the eye chart.
acuity-10✓ pass10s
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
grader · score 1
agent's debrief
Row 6 group 1 read as YDAP9.
acuity-8✓ pass9s
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 · score 1
agent's debrief
Row 7 group 3 read as GP4FK from the smallest row of the eye chart.
count-simple✓ pass11s
prompt
Look at the image at (fetch it and view it). How many orange squares are in the image? Answer with just the number.
answer
answer hidden on shared reports
grader · score 1
agent's debrief
Counted 5 orange squares: one top-left area, one middle-right, three along the bottom.
count-medium✕ fail12s
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 · score 0
expected 15, got "14"
agent's debrief
Counted red diamonds row by row: 2+3+3+2+4 = 14. Excluded red triangles and non-red diamonds.
count-complex✓ pass1m 13s
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
grader · score 1
agent's debrief
Used programmatic image analysis: segmented purple pixels, found connected components, classified by fill ratio (circles ~0.767 fill in 44x44 bbox). Counted 31 purple circles, excluding 5 squares and 7 diamonds/triangles.
spatial-simple✓ pass15s
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 · score 1
agent's debrief
Red circle is in the top-left cell of the 5x5 grid: row 1, column 1.
spatial-medium✓ pass8s
prompt
Look at the image at (fetch it and view it). Which shape has an arrow pointing to the red triangle? Answer with just the colour and shape, e.g. teal diamond.
answer
answer hidden on shared reports
grader · score 1
agent's debrief
Traced the arrows: the orange diamond at row 2 col 4 has an arrow pointing to the red triangle at row 3 col 1.
spatial-complex✓ pass26s
prompt
Look at the image at (fetch it and view it). Which shape is 3 steps after the red diamond along the arrows? Answer with just the colour and shape, e.g. teal diamond.
answer
answer hidden on shared reports
grader · score 1
agent's debrief
Traced arrows from red diamond (r1c6): step 1 to red circle (r2c8), step 2 to green square (r1c5), step 3 to red triangle (r4c4). Answer: red triangle.
chart-simple— unanswered—
prompt
Look at the image at (fetch it and view it). Using the "New Signups" chart, approximately what value did Feb have? Read it off the y-axis; answers within +/-5 are accepted.
chart-medium— unanswered—
prompt
Look at the image at (fetch it and view it). Using the "Server Incidents" chart, how many months had a value greater than 29? Answer with just the number.
chart-complex— unanswered—
prompt
Look at the image at (fetch it and view it). Using the "Support Tickets Opened" chart, approximately what value did New have in Oct? Read it off the y-axis; answers within +/-3 are accepted.
screenshot-simple— unanswered—
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.
screenshot-medium— unanswered—
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.
screenshot-complex— unanswered—
prompt
Look at the image at (fetch it and view it). What is the line total for Notebook on this order summary? Answer with just the amount, e.g. $12.34.
diagram-simple— unanswered—
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 "Cherry" point to? Answer with just the box name, e.g. Kettle.
diagram-medium— unanswered—
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 "Ember" point to? Answer with just the box name, e.g. Kettle.
diagram-complex— unanswered—
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 "Poplar"? Answer with just the box name, e.g. Kettle.

Finding and reading email test

not examined · 0/6 answered

aggregate-1— unanswered—
prompt
You are examining a mailbox: Phillip Allen's mail at enronmail.airbench.ai How many messages carry the label "travel"? Answer with just the number.
aggregate-2— unanswered—
prompt
You are examining a mailbox: Phillip Allen's mail at enronmail.airbench.ai How many messages carry the label "attachments"? Answer with just the number.
temporal-1— unanswered—
prompt
You are examining a mailbox: Phillip Allen's mail at enronmail.airbench.ai What is the subject of the oldest message carrying the label "travel"? Answer with just the subject line, exactly as shown.
temporal-2— unanswered—
prompt
You are examining a mailbox: Phillip Allen's mail at enronmail.airbench.ai What is the subject of the oldest message in the archive folder? Answer with just the subject line, exactly as shown.
needle-1— unanswered—
prompt
You are examining a mailbox: Phillip Allen's mail at enronmail.airbench.ai In Phillip's message to Steve Matthews about building a muni bond ladder from his account, what total account value does he give? Answer with just the number.
needle-2— unanswered—
prompt
You are examining a mailbox: Phillip Allen's mail at enronmail.airbench.ai In the reminder about the Portland Fundamental Analysis Strategy Meeting, what participant code is given for the call-in? Answer with just the number.

Purchasing test

not examined · 0/4 answered

find-product-1— unanswered—
prompt
The store is at abostore.airbench.ai Among products in the **Sports & Outdoors** category priced at or above **$500** 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).
find-product-2— unanswered—
prompt
The store is at abostore.airbench.ai Among products in the **Beauty & Personal Care** category priced at or above **$100** with a rating of at least **3.5**, 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).
purchase-1— unanswered—
prompt
The store is at abostore.airbench.ai Buy exactly 1 unit of AmazonBasics Multi-Purpose Labels for Label Printers, 4" x 6", 220 Labels per Roll 4 x 6 Inches (product id amazon.ae:B074KNHWPH, abostore.airbench.ai/product/amazonbasics-multi-purpo…) on abostore, completing checkout with a valid payment method. Use the checkout email aidoctor-8ba45d7c@aidoctor.test. Answer with just the resulting order id.
recover-decline-1— unanswered—
prompt
The store is at abostore.airbench.ai Buy exactly 3 units of AmazonBasics Deluxe Sideless Universal Fit Leatherette Seat Cover, Black with Red Diamond Pattern (product id amazon.sg:B07X766CP1, abostore.airbench.ai/product/amazonbasics-deluxe-side…) 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-22cdcb47@aidoctor.test for both attempts. Answer with just the order id of the successful (approved) order.

Coding test

not examined · 0/11 answered

compute-hash-1— unanswered—
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 = [3008594059, 1297217224, 2239301481, 2251982526, 3153578327, 2302357764, 2979552725, 50615066, 1113268323, 1183440512, 1431703681, 842184886], x = 2126754223, y = 86842172 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.
compute-vm-1— unanswered—
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 862 1: set b 549 2: set c 312 3: set d 541 4: add a 92 5: sub a 7 6: mul b 88 7: dec d 8: jnz d -4 9: sub a 89 10: dec c 11: jnz c -8 12: halt Respond with just the final value of register a.
compute-paths-1— unanswered—
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`.
compute-life-1— unanswered—
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`.
compute-fibmod-1— unanswered—
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 = 2612527526845224 and m = 999983. Respond with just the integer.
compute-words-1— unanswered—
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. tika pelpel Quinix renka peltru basnix, quinix Renmo lupel basdor truvo shatru? truti shatru bastru basnix pelqui tika Peltru Kalu Renmo lupel! renmo vopel shalu? truvo Kalu renmo molu pelpel nixvo; shalu lumo Truti rendor kalu lupel lumo ficmo renmo Nixvo basnix Renmo trubas shalu. truti voqui kalu nixvo vopel PELQUI Lupel Lupel! truvo vopel molu Renka lupel kalu ficmo moti Kazan; tika tika Kalu basnix kazan Renmo Lupel renka; renmo ficmo Truvo LUPEL quinix; Truti lupel molu nixvo; pelqui tika VOQUI Lupel? lumo truti truti quinix basnix truvo; pelqui renmo trubas shaqui truvo Renka Vobas shalu shatru, Shalu truti nixvo Lumo, renmo! VOBAS kalu Pelpel Renmo basdor RENKA. Trubas Shalu renmo timo timo renmo! molu; Shatru shatru KAREN renmo karen Trubas? renmo. rendor Voqui vopel timo voqui renka moti moti shatru Peltru Renmo! MOLU timo nixvo trubas peltru shatru renka KALU! truti kazan moti molu shatru renka tika kalu? truti kalu. truvo bastru truti molu basdor basdor vopel, truti Molu Rendor? timo renmo renmo? TIMO "RENDOR" kazan Molu Renmo; shatru nixvo shaqui lumo Moti kazan bastru "shaqui" VOQUI tika Vopel? moti rendor. tika renmo Trubas shaqui basnix Renmo renmo renmo lumo basnix peltru Lupel Tika pelqui BASDOR moti! renmo tika, kalu? lupel truti shatru, truvo peltru truti truti Kalu rendor vopel lupel karen bastru PELTRU Basnix moti voqui peltru kalu kalu timo shatru bastru lupel renmo renmo Lupel truvo trubas "nixvo" Basnix Quinix tika basdor renmo timo shalu Shatru. renmo RENKA shaqui pelqui vopel! trubas Molu TIKA molu molu truvo kalu vopel voqui truti basdor. Molu basnix Peltru lupel renmo renmo pelqui. truti, kazan rendor timo rendor molu "karen" TRUTI molu renmo truti Timo? Basdor Tika truti truvo Bastru Truvo voqui renka? lupel renmo Lupel, Kalu renmo TRUTI renka Kalu Molu Renka VOPEL, Molu truti! truti molu moti trubas Trubas lumo Truti Moti Renmo lupel moti rendor nixvo Nixvo vopel trubas Voqui PELQUI lupel Lupel kalu molu moti! peltru kalu truti vopel truti rendor quinix lupel shatru pelpel "lupel" renmo renka pelqui shatru basdor lupel tika Molu "lupel" timo basnix truvo pelpel! lumo. RENKA renka truti Molu renmo lupel "pelqui" Bastru truti shaqui truti renmo "lupel" shalu molu? Kalu renmo Lupel lupel basnix "Truvo" truti "truti" lumo; peltru quinix kalu? kalu renmo Peltru trubas "basnix" kalu vobas lupel lupel moti? renmo Tika molu Timo molu Bastru Truti renmo Vopel truti renka renka Timo Renmo, shaqui basnix truvo molu Ficmo RENMO truti moti truti lupel vopel "Timo" lumo. voqui? vopel, basdor vopel shaqui pelpel KAREN KAREN, tika pelpel renmo karen
trace-1— unanswered—
prompt
What exactly does this JavaScript program print? Respond with just the printed output. const v1 = (0.1 * 9 + 0.2 * 9 === 0.3 * 9) ? "equal" : "different"; const v2 = [typeof null, typeof "2", typeof typeof 4].join("/"); const v3fns = []; for (var v3i = 0; v3i < 2; v3i++) v3fns.push(() => v3i * 7); let v3 = 0; for (const f of v3fns) v3 += f(); const v4 = [52 / 4 | 0, Math.round(-6.5), -36 % 2].join(","); console.log(v1, v2, v3, v4);
fix-1— unanswered—
prompt
Our shipping quote function below has one bug. Bug report: this order is quoted 5015 cents, but the correct quote is 5016: {"country":"JP","items":[{"grams":1265,"qty":1,"price":6582,"fragile":false}],"express":true} 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, 400, 802, 1331, 1897]; // cents, by zone const PER_STEP = [0, 89, 127, 230, 289]; // cents per 250 g step, by zone const FREE_BASE_OVER = [0, 5100, 11800, 15400, 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.floor((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":881,"qty":2,"price":4082,"fragile":false}],"coupon":"SHIP10"} {"country":"FR","items":[{"grams":113,"qty":2,"price":8494,"fragile":true},{"grams":229,"qty":4,"price":2550,"fragile":false}]} {"country":"IT","items":[{"grams":469,"qty":4,"price":703,"fragile":false},{"grams":1757,"qty":5,"price":4525,"fragile":false},{"grams":777,"qty":4,"price":555,"fragile":false},{"grams":615,"qty":4,"price":6878,"fragile":false}]} {"country":"GB","items":[{"grams":1614,"qty":1,"price":1283,"fragile":false}],"express":true} {"country":"US","items":[{"grams":884,"qty":1,"price":5309,"fragile":true},{"grams":1518,"qty":2,"price":1849,"fragile":false}],"express":true,"coupon":"SHIP10"} {"country":"FR","items":[{"grams":645,"qty":3,"price":1905,"fragile":false},{"grams":1713,"qty":1,"price":5089,"fragile":false},{"grams":1701,"qty":4,"price":8701,"fragile":false}],"express":true} {"country":"CA","items":[{"grams":577,"qty":5,"price":4989,"fragile":false},{"grams":878,"qty":5,"price":6204,"fragile":false}],"coupon":"SHIP10"} {"country":"MX","items":[{"grams":536,"qty":5,"price":3346,"fragile":false},{"grams":1609,"qty":2,"price":2887,"fragile":true},{"grams":965,"qty":1,"price":2702,"fragile":true},{"grams":1490,"qty":1,"price":6800,"fragile":false}],"coupon":"SHIP10"} {"country":"GB","items":[{"grams":1726,"qty":5,"price":7725,"fragile":true},{"grams":851,"qty":5,"price":3391,"fragile":false}],"coupon":"SHIP10"} {"country":"CA","items":[{"grams":635,"qty":5,"price":7985,"fragile":false}],"express":true} {"country":"BR","items":[{"grams":208,"qty":1,"price":1261,"fragile":false}],"express":true} {"country":"JP","items":[{"grams":1243,"qty":1,"price":1851,"fragile":false}],"express":true} {"country":"CA","items":[{"grams":2387,"qty":1,"price":3478,"fragile":false}],"express":true} {"country":"DE","items":[{"grams":1903,"qty":1,"price":4424,"fragile":false}],"express":true} {"country":"BR","items":[{"grams":271,"qty":1,"price":5107,"fragile":true}],"express":true} {"country":"JP","items":[{"grams":654,"qty":1,"price":698,"fragile":false},{"grams":552,"qty":1,"price":2488,"fragile":false},{"grams":1258,"qty":1,"price":2096,"fragile":false},{"grams":306,"qty":4,"price":2006,"fragile":false}],"coupon":"SHIP10"} {"country":"FR","items":[{"grams":2748,"qty":1,"price":3352,"fragile":true}],"express":true} {"country":"CA","items":[{"grams":1530,"qty":2,"price":5035,"fragile":false}],"express":true} {"country":"FR","items":[{"grams":1618,"qty":5,"price":2496,"fragile":false},{"grams":783,"qty":1,"price":7065,"fragile":false},{"grams":310,"qty":1,"price":2531,"fragile":true},{"grams":278,"qty":1,"price":3926,"fragile":false}]} {"country":"IT","items":[{"grams":762,"qty":4,"price":1918,"fragile":false},{"grams":1306,"qty":4,"price":4512,"fragile":false},{"grams":470,"qty":1,"price":5244,"fragile":false}]}
implement-1— unanswered—
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]] [[29,33],[11,16],[9,14],[1,5]] [[5,13],[17,22],[3,3]] [[2,4],[21,27],[13,21],[28,29],[34,39]] [[25,33],[0,3],[37,39]] [[23,26],[12,13],[40,44]] [[8,15],[40,40],[4,8],[36,38]] [[20,22],[24,27],[5,7],[30,35],[16,20],[16,19]] [[18,25],[25,32],[30,36],[15,21],[20,23],[34,40],[29,29]]
repo-1— unanswered—
prompt
Download airbench.ai/f/83a55f7d706b4fd88e937f9eca26dac5.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.
repo-2— unanswered—
prompt
Download airbench.ai/f/8646c0b1435c127d2085c635dbfff0d8.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.

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: mistralai/mistral-large-4-0 on OpenRouter ($0.68/$2.09 per M tokens, 512K context, tools + image input), default OpenRouter provider routing, no sampling or reasoning parameters overridden (each harness sends its own defaults). Released 6 Oct 2026; OpenRouter's only provider for it is Mistral. Reached through the sandbox gateway's LLM forward on llm:9000 (served name mistral-large-4): it accepts only the sandbox, forwards only /v1/chat/completions and /v1/completions, rewrites every request's model to mistralai/mistral-large-4-0, 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: 524,288. 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 4e3be6c, `checkup.py checkup --agent opencode-ml4` (gx10 agent config; sandbox, gateway and configs from homelab-inference commit 42dffb4). 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.