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Claude Fable 5.1 (Medium, Default Fallback)
Anthropic · Released 2026-09-01 · Independent benchmark scores from Artificial Analysis
Intelligence Index
48.9
Output speed
52.0
tokens/sec
Blended price
$20.00
per 1M tokens
Time to first token
2.73s
Model metadata
| Model ID | 3b7de71c-e034-4591-8ca6-6b6be2fa471f |
|---|---|
| Slug | claude-fable-5-1-medium |
| Release date | 2026-09-01 |
| Provider | Anthropic |
| Provider slug | anthropic |
| Output speed | 52.0 tok/s |
| Time to first token | 2.73s |
| Time to first answer | 2.73s |
| Blended price ($/1M) | $20.00 |
| Input price ($/1M) | $10.00 |
| Output price ($/1M) | $50.00 |
All evaluation scores (18)
| aime | — |
|---|---|
| aime 25 | — |
| artificial analysis coding index | 77.10 |
| artificial analysis intelligence index | 48.90 |
| artificial analysis math index | — |
| gpqa | 88.6% |
| hle | 53.8% |
| ifbench | — |
| lcr | 84.7% |
| livecodebench | — |
| math 500 | — |
| mmlu pro | — |
| scicode | 56.4% |
| tau banking | 41.0% |
| tau2 | — |
| terminalbench hard | — |
| terminalbench v2 1 | 88.0% |
| terminalbench v4 0 | 44.9% |
Source: artificialanalysis.ai/models/claude-fable-5-1-medium
Benchmark data from Artificial Analysis.