Claude Fable 5.1
The spec sheet
Figures as the maker publishes them.
Price
- Input, per 1M tokens
- $10
- Output, per 1M tokens
- $50
Memory
- Context window
- 1M tokens
- Longest answer
- 128K tokens
Abilities
- Reasoning
- Yes
- Reads images
- Yes
- Calls tools
- Yes
- Takes in
- text, image, file
- Gives back
- text
The model
- Lab
- Anthropic
- Model id
- anthropic/claude-fable-5.1
- Released
- 1 Sep 2026
- Open weights
- No
