Claude Fable 5.1 (batch)
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...
The figures
- Made by
- Anthropic
- Model ID
- anthropic/claude-fable-5.1:batch
- Input
- $5 per million tokens
- Output
- $25 per million tokens
- Context window
- 1M tokens
- Longest answer
- 128K tokens
- Takes in
- text, image, file
- Gives back
- text
- Reasoning
- Yes
- Tool calling
- Yes
- Reads images
- Yes
- Open weights
- No
- Released
- 1 Sept 2026
Read on 3 Oct 2026.