Anthropic · Claude · Mythos · Decrypt
The launch comes as AI developers face growing questions about how to release increasingly capable systems
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At the same time, critics, including OpenAI CEO Sam Altman, have accused the company of using “ fear-based marketing ” to sell its AI models.
Key facts
- Alongside Mythos 5, Anthropic released Claude Fable 5, a Mythos-class AI model that uses the same core design of Mythos 5 but with additional safeguards for the general public
- While Anthropic said Fable 5 performs especially well on lengthy, complex tasks, to prevent misuse, requests involving cybersecurity, biology, chemistry, or AI model replication are handled by Claude
- Anthropic on Tuesday announced the official launch of Claude Mythos 5, a restricted-access AI model the company says has unprecedented cybersecurity capabilities, alongside Claude Fable 5, a version
- According to Anthropic, Mythos 5 and Fable 5 achieved top scores on several software engineering, cybersecurity, biology, and reasoning benchmarks
Summary
Anthropic launched Claude Mythos 5, a restricted-access AI model for cybersecurity and scientific research. The company also released Claude Fable 5, a version for general users that routes some sensitive requests to a less capable model. Mythos drew scrutiny after tests showed it could autonomously discover vulnerabilities and complete complex cyberattack simulations. Anthropic on Tuesday announced the official launch of Claude Mythos 5, a restricted-access AI model the company says has unprecedented cybersecurity capabilities, alongside Claude Fable 5, a version designed for broader public use. Anthropic said Mythos 5 will initially be available only to approved cybersecurity organizations, critical infrastructure operators, government partners, and selected life sciences researchers.