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Claude Fable 5.1 token cost
Anthropic · context 1,000,000 tokens · tokenizer Approx
Open in cost calculator · Count tokens · Full calculator · Official pricing
When to use Claude Fable 5.1
Anthropic’s top Claude for long-horizon agents, hard coding, and knowledge work. Same $10/$50 list as GPT-6 Astra, with much cheaper cache reads when prefixes stay stable.
Pricing
- Input
- $10.00/1M
- Output
- $50.00/1M
- Cached input
- $0.250/1M
- Batch input
- $5.00/1M
- Verified
Official pricing source · Open main calculator · Cheaper long context models
Cache hits and refreshes are $0.25 per 1M (2.5% of input), lower than Fable 5. Five-minute cache writes are $12.50 per 1M. Batch is 50% of standard.
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Preselect Claude Fable 5.1 in the calculator to count tokens and project request or monthly cost. Exact vs Approx follows this model's tokenizer family. See the Exact vs Approx guide for honesty rules.
Estimate cost for Claude Fable 5.1 · Count tokens · Pricing guide
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Estimate API cost · Count tokens · Check context fit · Estimate cache savings · Compare batch pricing · Compare vs GPT tokenizer
Related guides
LLM API pricing · Exact vs Approx · Luna vs Haiku · Stop using tiktoken for Claude · Prompt caching explained
Sources and references
Official documentation used for definitions, counting methods, or rate cards. Always confirm critical budgets on the provider page.