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AnthropicJune 9, 2026

Claude Fable 5 and Claude Mythos 5

Paid
LLMs
AI Agents
Infrastructure

Explore Claude Fable 5 and Claude Mythos 5

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### TL;DR

Anthropic has launched Claude Fable 5, a Mythos-class model designed for general use, and Claude Mythos 5, an enhanced version with advanced cybersecurity capabilities. Both models exhibit exceptional performance across various domains, including software engineering, knowledge work, vision, and scientific research. The release of these models signifies a significant advancement in AI capabilities, offering powerful tools for a wide range of applications.

Key Insights & Metrics

Pricing
$10 per million input tokens and $50 per million output tokens
Cost structure
Version
5
Current release version
Hardware
No local hardware required (Accessible via Claude API)
Compute requirements
Category
Paid
Licensing model
Region
United States
Primary region

Key Features

  • State-of-the-art performance on nearly all tested AI capability benchmarks
  • Exceptional performance in software engineering, knowledge work, vision, and scientific research
  • Autonomous operation for extended periods
  • Advanced cybersecurity capabilities in Mythos 5
  • Safeguards to prevent misuse in sensitive areas

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