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Anthropic: Claude Fable 5.1 (batch) API Pricing

Anthropic: Claude Fable 5.1 (batch) is an API model from anthropic. It costs $5 per 1M input tokens and $25 per 1M output tokens, with cached input at $0.125. Its context window is 1,000,000 tokens with up to 128,000 output tokens. A workload of 10M input + 2M output tokens costs about $100 per month.
Input
$5
per 1M tokens
Output
$25
per 1M tokens
Cached input
$0.125
per 1M tokens
Context window
1M
1,000,000 tokens
Blended (80/20)
$9
per 1M tokens

Claude Fable 5.1 improves on Claude Fable 5 across the board, with the biggest gains in agentic coding, long-running agentic workflows, and knowledge work: long code refactors, front-end and visual...

How much does Anthropic: Claude Fable 5.1 (batch) cost for a real workload?

At 10M input + 2M output tokens per month, Anthropic: Claude Fable 5.1 (batch) costs about $100 ($50 input + $50 output). Try your own volumes in the cost calculator.

What are cheaper alternatives to Anthropic: Claude Fable 5.1 (batch)?

Compare Anthropic: Claude Fable 5.1 (batch) with other models

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Frequently asked questions

How much does Anthropic: Claude Fable 5.1 (batch) cost?

Anthropic: Claude Fable 5.1 (batch) costs $5 per 1M input tokens and $25 per 1M output tokens (list price, snapshot October 21, 2026). At 10M input + 2M output tokens per month that is about $100.

What is the context window of Anthropic: Claude Fable 5.1 (batch)?

Anthropic: Claude Fable 5.1 (batch) has a context window of 1,000,000 tokens and can return up to 128,000 output tokens per response.

What are cheaper alternatives to Anthropic: Claude Fable 5.1 (batch)?

Cheaper models include Meta: Muse Wonder ($4 in / $20 out), Anthropic: Claude Opus 5.5 ($4 in / $20 out), OpenAI: GPT-5.6 Sol Pro ($4 in / $20 out). See the full list on this page.

Is Anthropic: Claude Fable 5.1 (batch) free to use?

No. Anthropic: Claude Fable 5.1 (batch) is a paid model at $5 input / $25 output per 1M tokens. 20 free models are listed on the free models page.

Provider: anthropic · Model ID: anthropic/claude-fable-5.1:batch · Modality: text+image+file->text · Price snapshot October 21, 2026, refreshed daily. How we collect prices