Atlas

Benchmarks

OpenWorldEngineer — Engineering

Mercor

OpenWorldEngineer Mean@8 on its 5 engineering tasks (CAD, structural design and aerospace: scan to CAD, drawing to CAD, free-form reconstruction, reinforced-concrete frames and aircraft design).

Models
15
Top score
59.6
Leader
Claude Fable 5.2
Updated
—
Resolution
—
Saturation
—
Signal
95thpercentile
192 benchmarks from 0.8 to 3.5218 benchmarks from 3.5 to 6.1128 benchmarks from 6.1 to 8.895 benchmarks from 8.8 to 11.567 benchmarks from 11.5 to 14.128 benchmarks from 14.1 to 16.814 benchmarks from 16.8 to 19.49 benchmarks from 19.4 to 22.111 benchmarks from 22.1 to 24.72 benchmarks from 24.7 to 27.46 benchmarks from 27.4 to 30.13 benchmarks from 30.1 to 32.73 benchmarks from 32.7 to 35.45 benchmarks from 35.4 to 38.01 benchmark from 38.0 to 40.71 benchmark from 40.7 to 43.41 benchmark from 43.4 to 46.01 benchmark from 62.0 to 64.6

42nd strongest of 785

Signal-to-noise +19.67 for the OpenWorldEngineer (Mean@8) family

Difficulty
Not estimated

Another benchmark represents this family in the fit.

Organizations
15 dated models · 5 frontier modelsClosed weightsOpen weights
Data: Mercoratlas.village.dev
#ModelSettingScoreSource
1Claude Fable 5.2max · OpenWorld harness (OpenWorldEngineer runner) on Harbor 0.23 with Modal sandboxes; web search over an October 1, 2026 web snapshot as the only network access; task time budgets of 4 to 18 hours
59.6
OpenWorldEngineer official leaderboard
2GPT-6 Astramax · OpenWorld harness (OpenWorldEngineer runner) on Harbor 0.23 with Modal sandboxes; web search over an October 1, 2026 web snapshot as the only network access; task time budgets of 4 to 18 hours
57.3
OpenWorldEngineer official leaderboard
3GPT-6.1 Solmax · OpenWorld harness (OpenWorldEngineer runner) on Harbor 0.23 with Modal sandboxes; web search over an October 1, 2026 web snapshot as the only network access; task time budgets of 4 to 18 hours
54.4
OpenWorldEngineer official leaderboard
4Claude Opus 5.5max · OpenWorld harness (OpenWorldEngineer runner) on Harbor 0.23 with Modal sandboxes; web search over an October 1, 2026 web snapshot as the only network access; task time budgets of 4 to 18 hours
40.8
OpenWorldEngineer official leaderboard
5Gemini 4 Carbonhigh · OpenWorld harness (OpenWorldEngineer runner) on Harbor 0.23 with Modal sandboxes; web search over an October 1, 2026 web snapshot as the only network access; task time budgets of 4 to 18 hours
38.7
OpenWorldEngineer official leaderboard
6Claude Sonnet 5.5max · OpenWorld harness (OpenWorldEngineer runner) on Harbor 0.23 with Modal sandboxes; web search over an October 1, 2026 web snapshot as the only network access; task time budgets of 4 to 18 hours
34.5
OpenWorldEngineer official leaderboard
7Claude Fable 5.1max · OpenWorld harness (OpenWorldEngineer runner) on Harbor 0.23 with Modal sandboxes; web search over an October 1, 2026 web snapshot as the only network access; task time budgets of 4 to 18 hours
24.5
OpenWorldEngineer official leaderboard
8Gemini 4 Argonhigh · OpenWorld harness (OpenWorldEngineer runner) on Harbor 0.23 with Modal sandboxes; web search over an October 1, 2026 web snapshot as the only network access; task time budgets of 4 to 18 hours
17.4
OpenWorldEngineer official leaderboard
9Kimi K3.1 Promax · OpenWorld harness (OpenWorldEngineer runner) on Harbor 0.23 with Modal sandboxes; web search over an October 1, 2026 web snapshot as the only network access; task time budgets of 4 to 18 hours
10.6
OpenWorldEngineer official leaderboard
10Muse Wondermax · OpenWorld harness (OpenWorldEngineer runner) on Harbor 0.23 with Modal sandboxes; web search over an October 1, 2026 web snapshot as the only network access; task time budgets of 4 to 18 hours
9.5
OpenWorldEngineer official leaderboard
11DeepSeek V4.1 Flashmax · OpenWorld harness (OpenWorldEngineer runner) on Harbor 0.23 with Modal sandboxes; web search over an October 1, 2026 web snapshot as the only network access; task time budgets of 4 to 18 hours
9.1
OpenWorldEngineer official leaderboard
12GLM-5.3max · OpenWorld harness (OpenWorldEngineer runner) on Harbor 0.23 with Modal sandboxes; web search over an October 1, 2026 web snapshot as the only network access; task time budgets of 4 to 18 hours
6.3
OpenWorldEngineer official leaderboard
13Grok 4.7x-high · OpenWorld harness (OpenWorldEngineer runner) on Harbor 0.23 with Modal sandboxes; web search over an October 1, 2026 web snapshot as the only network access; task time budgets of 4 to 18 hours
3.9
OpenWorldEngineer official leaderboard
14Beam 1.0 501B A23Bmax · OpenWorld harness (OpenWorldEngineer runner) on Harbor 0.23 with Modal sandboxes; web search over an October 1, 2026 web snapshot as the only network access; task time budgets of 4 to 18 hours
3.3
OpenWorldEngineer official leaderboard
15Inklingnot reported · OpenWorld harness (OpenWorldEngineer runner) on Harbor 0.23 with Modal sandboxes; web search over an October 1, 2026 web snapshot as the only network access; task time budgets of 4 to 18 hours
1.1
OpenWorldEngineer official leaderboard
Loading Atlas data…