Anthropic: Claude Fable 5.1
anthropic/claude-fable-5.1
Claude Fable 5.1 is Anthropic's flagship and the current #1 of 233 models on the TryAii Score, leading runner-up Claude Opus 5 by 2.6 points. It tops the board outright on SWE-bench-Pro and MMLU-Pro. It costs $10/$50 per million input/output tokens, though similar scores now sell for about $10.5 per million output tokens and it's reasonably quick at roughly 28-47 tokens/sec.
Prompt $/1M
$10.000
Completion $/1M
$50.000
Context
1,000,000 tok
Best provider
54 tok/s · Google
Specs
- Model id
- anthropic/claude-fable-5.1
- Display name
- Anthropic: Claude Fable 5.1
- Modality
- text+image+file->text
- Tokenizer
- Claude
- Instruct type
- —
- Context length
- 1,000,000
- Max completion
- 128,000
- Prompt $/1M
- $10.000
- Completion $/1M
- $50.000
- Free tier
- no
Capabilities
- Function callingno
- JSON modeno
- System promptno
- Visionno
- Moderatedyes
Benchmark scores
Each axis is one benchmark, normalized to the best model in the field.
No benchmark data for this model.
Speed by provider
| Provider | tok/s |
|---|---|
| Googlefastest | 54 |
| Anthropic | 45 |
| Amazon Bedrock | 29 |
| Azure | 27 |