Agent Leaderboard
| Harness | Model | Effort | |||||||
|---|---|---|---|---|---|---|---|---|---|
| 1 |  Codex |  GPT-5.6 Sol | Maximum | 17.5% | 27.8 | $150.68 | 15h 9m | 80.6M | 1.7M |
| 2 |  Claude Code |  Claude Fable 5 | Maximum | 15.2% | 23.1 | $1,080.11 | 36h 21m | 484.8M | 7.3M |
| 3 | Claude Code | Claude Fable 5 | High | 9.2% | 20.4 | $922.10 | 28h 0m | 420.5M | 5.5M |
| 4 | Codex | GPT-5.6 Sol | High | 8.2% | 20.3 | $190.53 | 17h 33m | 162.3M | 1.4M |
| 5 |  Grok Build |  Grok 4.5 | High | 8.1% | 19.6 | $81.67 | 18h 24m | 98.6M | 1.2M |
| 6 | Codex | GPT-5.6 Sol | Medium | 6.7% | 19.5 | $166.47 | 16h 36m | 140.5M | 1.2M |
| 7 | Claude Code | Claude Fable 5 | Medium | 5.1% | 16.1 | $652.14 | 19h 24m | 239.3M | 3.7M |
| 8 | Grok Build | Grok 4.5 | Medium | 3.7% | 15.3 | $80.46 | 18h 34m | 97.8M | 1.3M |
Model Leaderboard
| Model | Model Provider | Effort | |||||||
|---|---|---|---|---|---|---|---|---|---|
| 1 | GPT-5.6 Sol |  OpenAI | Maximum | 59.5% | 64.7 | $83.40 | 9h 8m | 8.4M | 2.1M |
| 2 |  Kimi K3 |  Moonshot AI | Maximum | 50.5% | 62.8 | $24.75 | 8h 46m | 5.0M | 1.1M |
| 3 | Claude Fable 5 |  Anthropic | Maximum | 49.7% | 62.5 | $222.21 | 8h 54m | 13.6M | 2.9M |
| 4 | Grok 4.5 |  xAI | High | 49.6% | 57.4 | $12.51 | 1h 39m | 8.5M | 664.5K |
| 5 | GPT-5.6 Sol | OpenAI | High | 48.5% | 57.3 | $43.25 | 3h 53m | 7.5M | 841.0K |
| 6 | Kimi K3 | Moonshot AI | High | 44.5% | 57.2 | $30.51 | 11h 22m | 7.3M | 1.2M |
| 7 | Claude Fable 5 | Anthropic | High | 42.6% | 55.4 | $121.49 | 3h 22m | 12.2M | 976.7K |
| 8 |  MiMo-V2.5 |  Xiaomi | High | 38.8% | 48.1 | $1.15 | 6h 12m | 5.9M | 1.3M |
| 9 |  Inkling |  Thinking Machines Lab | Maximum | 38.3% | 47.9 | $9.73 | 6h 2m | 7.4M | 1.1M |
| 10 |  Gemini 3.5 Flash |  Google | High | 38.1% | 47.8 | $29.44 | 2h 50m | 11.9M | 2.1M |
| 11 |  Qwen 3.7 Plus |  Alibaba Cloud | High | 33.9% | 45.8 | $2.14 | 5h 17m | 4.9M | 1.0M |
| 12 |  Mistral Medium 3.5 |  Mistral AI | High | 33.8% | 44.7 | $12.38 | 6h 37m | 2.7M | 1.2M |
| 13 | Inkling | Thinking Machines Lab | High | 33.6% | 44.0 | $9.15 | 3h 0m | 7.2M | 1.1M |