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What is Claude Fable 5?

A direct definition page for users and AI answer engines that need the short answer first.

Direct answer

Claude Fable 5 is the public Claude Fable model for advanced coding, long-context research, and agentic work. On this site, the term maps to the API model ID claude-fable-5, a 1M-token context window, 128K maximum output, always-on adaptive thinking, and public pricing of $10 per million input tokens and $50 per million output tokens.

what is claude fable 5 facts

TopicAnswer
Primary querywhat is claude fable 5
Model nameClaude Fable 5
API model IDclaude-fable-5
Best fitHard coding tasks, long-context research, and agent workflows.
Pricing note$10 per million input tokens and $50 per million output tokens on the API.

What this page covers

Intent

Search intent

This page gives a concise answer first, then adds enough surrounding context for human readers, search snippets, and AI answer engines.

Evaluation

When to use Fable 5

Use Fable 5 when the task needs planning, long context, tool use, or stronger coding judgment. Use cheaper models for routine work.

Checklist

Focus areas

  • definition
  • model ID
  • pricing
  • Claude Code
  • AI overview
Cost

Budget rule

Compare total solved-task cost. A higher token price can still be efficient when it reduces retries, review time, and failed attempts.

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