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FrontierCode 2.0 Benchmark Leaderboard
As of 29 Oct 2026 · 78 ranked rows · Original source ↗
Cost per Intelligence Index task uses Artificial Analysis profile values captured 29 Oct 2026, weighted across the Index evaluations. Workbook cost values mentioned in the source notes below are evaluation-specific.
Values refreshed from the Artificial Analysis evaluation page captured 2026-10-29.
20 results
| 1 | Anthropic | Claude Opus 5.5 (Adaptive Reasoning, Max Effort, Default Fallback) | 0.46436 | Sep 2026 | $10.04 |
| 2 | Anthropic | Claude Opus 5.5 (Adaptive Reasoning, Xhigh Effort, Default Fallback) | 0.437547 | Sep 2026 | $6.05 |
| 5 | Anthropic | Claude Sonnet 5.5 (Adaptive Reasoning, Max Effort, Default Fallback) | 0.416993 | Sep 2026 | $10.02 |
| 16 | Anthropic | Claude Opus 5.5 (Adaptive Reasoning, High Effort, Default Fallback) | 0.359279 | Sep 2026 | $3.46 |
| 17 | Anthropic | Claude Fable 5.1 (Adaptive Reasoning, Xhigh Effort, Default Fallback) | 0.357317 | Sep 2026 | $10.89 |
| 18 | Anthropic | Claude Sonnet 5.5 (Adaptive Reasoning, Xhigh Effort, Default Fallback) | 0.356495 | Sep 2026 | $4.09 |
| 19 | Anthropic | Claude Haiku 5.5 (Adaptive Reasoning, Max Effort, Default Fallback) | 0.349326 | Oct 2026 | $0.41 |
| 23 | Anthropic | Claude Opus 5.5 (Adaptive Reasoning, Medium Effort, Default Fallback) | 0.330793 | Sep 2026 | $2.45 |
| 24 | Anthropic | Claude Fable 5.1 (Adaptive Reasoning, Max Effort, Default Fallback) | 0.316249 | Sep 2026 | $13.04 |
| 25 | Anthropic | Claude Fable 5.1 (Adaptive Reasoning, High Effort, Default Fallback) | 0.30298 | Sep 2026 | $7.56 |
| 26 | Anthropic | Claude Haiku 5.5 (Adaptive Reasoning, Xhigh Effort, Default Fallback) | 0.299334 | Oct 2026 | $0.25 |
| 27 | Anthropic | Claude Fable 5.1 (Adaptive Reasoning, Medium Effort, Default Fallback) | 0.287731 | Sep 2026 | $5.58 |
| 33 | Anthropic | Claude Sonnet 5.5 (Adaptive Reasoning, High Effort, Default Fallback) | 0.25738 | Sep 2026 | $1.64 |
| 40 | Anthropic | Claude Haiku 5.5 (Adaptive Reasoning, High Effort, Default Fallback) | 0.232001 | Oct 2026 | $0.16 |
| 42 | Anthropic | Claude Fable 5.1 (Adaptive Reasoning, Low Effort, Default Fallback) | 0.228401 | Sep 2026 | $4.49 |
| 55 | Anthropic | Claude Haiku 5.5 (Adaptive Reasoning, Medium Effort, Default Fallback) | 0.16092 | Oct 2026 | $0.09 |
| 56 | Anthropic | Claude Opus 5.5 (Adaptive Reasoning, Low Effort, Default Fallback) | 0.158378 | Sep 2026 | $0.98 |
| 63 | Anthropic | Claude Sonnet 5.5 (Adaptive Reasoning, Medium Effort, Default Fallback) | 0.109708 | Sep 2026 | $0.78 |
| 65 | Anthropic | Claude Haiku 5.5 (Adaptive Reasoning, Low Effort, Default Fallback) | 0.0803667 | Oct 2026 | $0.04 |
| 67 | Anthropic | Claude Sonnet 5.5 (Adaptive Reasoning, Low Effort, Default Fallback) | 0.0712576 | Sep 2026 | $0.51 |