Intelligence Index
0165.7
> 100% OF MODELS
Anthropic
Claude Fable 5.1
Updated: September 2026
Claude Fable 5.1 improves on Claude Fable 5 across the board, with the biggest gains in agentic coding, long-running agentic workflows, and knowledge work: long code refactors, front-end and visual...
Specifications
- Context
- 1M
- Input Modalities
- Text, Image
- Output Modalities
- Text
- Input
- $10/M
- Output
- $50/M
Capabilities
VISIONTEXTWEBCODINGTHINKINGWRITING
Similarly Priced Models
| Model | Provider | Context | Input Price | Output Price |
|---|---|---|---|---|
| Claude Fable 5 | Anthropic | 1M | $10/M | $50/M |
| GPT-4 Turbo | OpenAI | 128K | $10/M | $30/M |
| GPT-4 Turbo Preview | OpenAI | 128K | $10/M | $30/M |
Performance Metrics
Coding Index
0281.6
> 99% OF MODELS
Agentic Index
0361.3
> 99% OF MODELS
Average Response Performance
- Output Speed
- 66.5 tok/s
- Time To First Token
- 296.81s
- Time To First Answer Token
- 296.81s
- End To End Response Time
- 304.34s
DATA SOURCE: Artificial Analysis