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Terminal-Bench 4.0 Benchmark Leaderboard
As of 29 Oct 2026 · 233 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.
AA Cost Chart Label is the displayed source value; Cost per Task (USD) is numeric. A bound such as <0.1¢ remains in the label while its numeric cell is blank; if both cells are blank, AA showed no plotted cost point for this model. GPT-6.1 Sol effort-variant rows use scores from Artificial Analysis model profiles captured 2026-09-30; insertion ranks are documented in docs/GPT-6.1-SOL-RANK-IMPACT.md. Values refreshed from the Artificial Analysis evaluation page captured 2026-10-29.
21 results
| 3 | Anthropic | Claude Sonnet 5.5 (Adaptive Reasoning, Max Effort, Default Fallback) | 0.636364 | Sep 2026 | $10.02 |
| 4 | Anthropic | Claude Opus 5.5 (Adaptive Reasoning, Max Effort, Default Fallback) | 0.59596 | Sep 2026 | $10.04 |
| 4 | Anthropic | Claude Opus 5.5 (Adaptive Reasoning, Xhigh Effort, Default Fallback) | 0.59596 | Sep 2026 | $6.05 |
| 8 | Anthropic | Claude Sonnet 5.5 (Adaptive Reasoning, Xhigh Effort, Default Fallback) | 0.570707 | Sep 2026 | $4.09 |
| 11 | Anthropic | Claude Opus 5.5 (Adaptive Reasoning, High Effort, Default Fallback) | 0.565657 | Sep 2026 | $3.46 |
| 14 | Anthropic | Claude Fable 5.1 (Adaptive Reasoning, Xhigh Effort, Default Fallback) | 0.550505 | Sep 2026 | $10.89 |
| 17 | Anthropic | Claude Opus 5.5 (Adaptive Reasoning, Medium Effort, Default Fallback) | 0.525253 | Sep 2026 | $2.45 |
| 18 | Anthropic | Claude Fable 5.1 (Adaptive Reasoning, High Effort, Default Fallback) | 0.520202 | Sep 2026 | $7.56 |
| 18 | Anthropic | Claude Fable 5.1 (Adaptive Reasoning, Max Effort, Default Fallback) | 0.520202 | Sep 2026 | $13.04 |
| 28 | Anthropic | Claude Fable 5.1 (Adaptive Reasoning, Medium Effort, Default Fallback) | 0.449495 | Sep 2026 | $5.58 |
| 29 | Anthropic | Claude Sonnet 5.5 (Adaptive Reasoning, High Effort, Default Fallback) | 0.439394 | Sep 2026 | $1.64 |
| 31 | Anthropic | Claude Fable 5 (Adaptive Reasoning, Max Effort, Opus 4.8 Fallback) | 0.424242 | Jun 2026 | — |
| 35 | Anthropic | Claude Fable 5.1 (Adaptive Reasoning, Low Effort, Default Fallback) | 0.40404 | Sep 2026 | $4.49 |
| 46 | Anthropic | Claude Haiku 5.5 (Adaptive Reasoning, Max Effort, Default Fallback) | 0.328283 | Oct 2026 | $0.41 |
| 50 | Anthropic | Claude Opus 5.5 (Adaptive Reasoning, Low Effort, Default Fallback) | 0.313131 | Sep 2026 | $0.98 |
| 53 | Anthropic | Claude Sonnet 5.5 (Adaptive Reasoning, Medium Effort, Default Fallback) | 0.29798 | Sep 2026 | $0.78 |
| 54 | Anthropic | Claude Haiku 5.5 (Adaptive Reasoning, Xhigh Effort, Default Fallback) | 0.292929 | Oct 2026 | $0.25 |
| 66 | Anthropic | Claude Haiku 5.5 (Adaptive Reasoning, High Effort, Default Fallback) | 0.217172 | Oct 2026 | $0.16 |
| 69 | Anthropic | Claude Sonnet 5.5 (Adaptive Reasoning, Low Effort, Default Fallback) | 0.207071 | Sep 2026 | $0.51 |
| 78 | Anthropic | Claude Haiku 5.5 (Adaptive Reasoning, Medium Effort, Default Fallback) | 0.151515 | Oct 2026 | $0.09 |
| 88 | Anthropic | Claude Haiku 5.5 (Adaptive Reasoning, Low Effort, Default Fallback) | 0.126263 | Oct 2026 | $0.04 |