Anthropic · Flagship model
Claude Fable 5.1 pricing & cost calculator
Prices last updated:
Input
$10.00
per 1M tokens
Output
$50.00
per 1M tokens
Context window
1M
1,000,000 tokens
Anthropic's most capable widely released model.
About Claude Fable 5.1 pricing
Claude Fable 5.1 is Anthropic’s top-tier model, aimed at the hardest reasoning, coding and agentic work. It is billed per token: $10.00 for every million tokens you send and $50.00 for every million tokens it generates, so output costs 5× as much as input.
For a typical request of 1,000 input and 500 output tokens, Claude Fable 5.1 costs about $0.035 — the 14th-cheapest of the 14 models we track. One million input tokens is roughly 2,000 pages of English prose.
With Anthropic’s batch API (50% off, results within 24 hours) the rate drops to $5.00 input and $25.00 output per million tokens.
Anthropic’s official pricing page is the source of truth; see our guide to how AI pricing works for caching and long-context rules.
Claude Fable 5.1 cost calculator
- Per request
- $0.035
- Per day
- $35.00
- Per month (30 days)
- $1,050.00
What Claude Fable 5.1 costs for common tasks
| Task | Input tokens | Output tokens | Per request | Per 1,000 requests |
|---|---|---|---|---|
| Short chat reply | 500 | 300 | $0.02 | $20.00 |
| Support chatbot turn with history | 3,000 | 400 | $0.05 | $50.00 |
| RAG answer (retrieved context) | 6,000 | 600 | $0.09 | $90.00 |
| Summarize a 20-page document | 12,000 | 1,000 | $0.17 | $170.00 |
| Long-document analysis | 100,000 | 2,000 | $1.10 | $1,100.00 |
Compare Claude Fable 5.1 with…
Other Anthropic models first.
- Claude Fable 5.1 vs Claude Opus 5.5$4.00 in · $20.00 out per 1M
- Claude Fable 5.1 vs Claude Opus 5$5.00 in · $25.00 out per 1M
- Claude Fable 5.1 vs Claude Sonnet 5$2.00 in · $10.00 out per 1M
- Claude Fable 5.1 vs Claude Haiku 4.5$1.00 in · $5.00 out per 1M
- Claude Fable 5.1 vs GPT-6 Astra$10.00 in · $50.00 out per 1M
- Claude Fable 5.1 vs GPT-5.6 Sol$5.00 in · $30.00 out per 1M
- Claude Fable 5.1 vs GPT-5.6 Terra$2.00 in · $12.00 out per 1M
- Claude Fable 5.1 vs GPT-5.6 Luna$0.20 in · $1.20 out per 1M
- Claude Fable 5.1 vs Gemini 3.1 Pro$2.00 in · $12.00 out per 1M
- Claude Fable 5.1 vs Gemini 3.8 Flash$0.75 in · $3.75 out per 1M
- Claude Fable 5.1 vs Grok 4.7$2.00 in · $6.00 out per 1M
- Claude Fable 5.1 vs DeepSeek V4 Pro$0.435 in · $0.87 out per 1M
- Claude Fable 5.1 vs DeepSeek V4 Flash$0.14 in · $0.28 out per 1M
Claude Fable 5.1 pricing FAQ
- How much does Claude Fable 5.1 cost per token?
- Claude Fable 5.1 costs $10.00 per million input tokens and $50.00 per million output tokens through the Anthropic API. That is $0.00001 per input token and $0.00005 per output token.
- How much does a typical Claude Fable 5.1 request cost?
- A request with 1,000 input tokens and 500 output tokens costs about $0.035 on Claude Fable 5.1, or $35.00 per thousand requests.
- What is the context window of Claude Fable 5.1?
- Claude Fable 5.1 accepts up to 1,000,000 tokens (about 1M) of context per request, which covers the prompt, any documents you include and the conversation history.
- Does Claude Fable 5.1 have batch pricing?
- Yes. Anthropic's batch API processes requests asynchronously (typically within 24 hours) at 50% off, bringing Claude Fable 5.1 to $5.00 input and $25.00 output per million tokens.
- How accurate is the token count for Claude Fable 5.1?
- It is an estimate. Anthropic does not publish a browser tokenizer for Claude Fable 5.1, so Tokenova counts with o200k_base and applies a Anthropic-specific adjustment. Expect real counts within roughly 10–20% for English text; use Anthropic's token-counting API for exact numbers.