Home Models Anthropic Claude Fable 5 (1M)

Anthropic Claude Fable 5 (1M)

Anthropic 1M context Released: 2026-06

The first public Mythos-class model - Anthropic's most powerful generally available model, sharing Mythos 5's underlying intelligence with added safeguards that fall back to Opus 4.8 on sensitive prompts.

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Pricing Information

Input Pricing

Standard: $10.0000
Per 1,000 tokens
Cached: $1.0000
Per 1,000 tokens (cached requests)

Output Pricing

Standard: $50.0000
Per 1,000 tokens

Example Costs

Short Conversation
1K input + 500 output tokens
$35.0000
Book Analysis
50K input + 2K output tokens
$600.00

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Key Features

  • Mythos-class intelligence for everyone
  • Adaptive thinking (no fixed budget)
  • 1M token context window
  • Top-tier coding & agentic work
  • Built-in safety classifiers

Common Use Cases

  • Frontier coding assistants
  • Autonomous multi-step agents
  • Complex analysis and writing
  • Enterprise copilots
  • Research synthesis

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Frequently Asked Questions

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What are "Artifacts" in Anthropic's Claude 3.5 Sonnet (and potentially newer models)?

How does Anthropic approach AI safety in its Claude models?

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