All modelsCalculate what your real prompts cost on Claude Fable 5.1
Claude Fable 5.1
Anthropic model, released 1 Sept 2026.
$10.00
per 1M input tokens
$50.00
per 1M output tokens
$0.25
per 1M cached-read tokens
Price history
Price stable since we started tracking (2 Sept 2026). History will chart here as soon as it moves.
Specifications
- Lab
- Anthropic
- Released
- 1 Sept 2026
- Context window
- 1M tokens
- Max output
- 128k tokens
- Input modalities
- text, image, file
- Output modalities
- text
- Knowledge cutoff
- —
- Open source
- No
Benchmarks
| Benchmark | Category | Score | As of |
|---|---|---|---|
| LMArena (Chatbot Arena) | coding | 1529.2 (1517.7–1540.7) | 13 Oct 2026 |
| LMArena (Chatbot Arena) | overall | 1509.9 (1503.8–1516) | 13 Oct 2026 |
LMArena (Chatbot Arena) data © their authors, CC-BY-4.0
Frequently asked questions
How much does Claude Fable 5.1 cost?
Claude Fable 5.1 costs $10.00 per 1M input tokens and $50.00 per 1M output tokens (list price, updated every 6 hours).
What is Claude Fable 5.1's context window?
Claude Fable 5.1 supports a 1M-token context window with up to 128k output tokens.