Anthropic API · verified September 25, 2026
Claude Fable 5.1 API pricing: $10 in / $50 out
Anthropic's top generally available tier.
Input /1M$10
Output /1M$50
Context1M
ReleasedSep 1, 2026
What real jobs cost
| 1,000 short chats | $28.00 |
| Summarise 100 long reports (20k tokens each) | $25.00 |
| Write a 90,000-word book | $6.20 |
| 10M input + 2M output tokens | $200.00 |
Estimates at the listed price. Use the calculator for your own numbers.
Similar-priced models
| Model | In | Out |
|---|---|---|
| GPT-5.6 Terra OpenAI | $2 | $12 |
| GPT-5.6 Sol OpenAI | $4 | $20 |
| Claude Opus 5.5 Anthropic | $4 | $20 |
| Claude Opus 5 Anthropic | $5 | $25 |
| Claude Opus 4.8 Anthropic | $5 | $25 |
| GPT-6 Astra OpenAI | $10 | $50 |
Price history
No price or plan changes recorded since we started tracking. We re-check every week.
Other Anthropic models
- Claude Opus 5.5 $4 / $20
- Claude Opus 5 $5 / $25
- Claude Opus 4.8 $5 / $25
- Claude Sonnet 5 $2 / $10
- Claude Haiku 4.5 $1 / $5
Claude Fable 5.1 pricing questions
How much does Claude Fable 5.1 cost?
$10 per million input tokens and $50 per million output tokens, with a 1M context window. Anthropic's top generally available tier.
How much does 1,000 chats cost on Claude Fable 5.1?
About $28.00, assuming 800 input and 400 output tokens per chat.
Is there a cheaper alternative to Claude Fable 5.1?
Claude Opus 5 ($5 / $25) costs about 50% less on a typical 3:1 input/output mix. Test whether its quality is enough for your task.
Sources
Checked against the official pages below on September 25, 2026. Prices are USD before local tax. See how we verify prices and the change log.