Claude Fable 5.1
nano-gpt / anthropic/claude-fable-5.1
Input price
$10
per 1M tokens
Output price
$50
per 1M tokens
Context
1,000K
tokens
Capabilities
✓ Reasoning✓ Tool calls✓ Image input— Open weights
| cache read | $0.25 |
| cache write | $12.5 |
| Context | 1,000,000 tokens |
| max output | 128,000 tokens |
| Released | 2026-09-01 |
| Data updated | 2026-09-01 |
Prices are official/data-source rates (per 1M tokens), not what relays actually charge — relay prices vary with discounts and group multipliers. See methodology.