E-MagazineAnthropic introduces Claude Fable 5.2 and Mythos 5.2 AI models: Check capabilities, availability and more details
Anthropic has introduced two new AI models, Claude Fable 5.2 and Claude Mythos 5.2.
The new models come with improvements in reasoning, coding and visual understanding.
Anthropic says the new models "are designed to tackle the most daunting technical challenges."
Anthropic has introduced two new AI models, Claude Fable 5.2 and Claude Mythos 5.2, with improvements in reasoning, coding and visual understanding. The company claims that the new models can handle complex tasks more efficiently than their previous versions. These include scientific research, software development and cybersecurity-related work. Anthropic says the new models "are designed to tackle the most daunting technical challenges." The company also claims the models deliver faster responses, communicate more clearly and require fewer tokens to complete certain complex tasks.
Anthropic Claude Fable 5.2 and Mythos 5.2: Capabilities
According to Anthropic, Claude Fable 5.2 and Mythos 5.2 have shown significant improvements during internal testing. The company claims that the models designed three working electronic devices from scratch and solved two previously unsolved problems in theoretical physics. Anthropic also said that the models completed the computer-based formalisation of Fermat’s Last Theorem in just 30 hours.
In another test, 1,000 Fable 5.2 agents worked together to build a functional operating system in around eight days. The system reportedly included its own core, hardware drivers, file storage, windows, a login screen and an installer.
The company also claims that the new models can generate responses up to 30 per cent faster than Claude Fable 5.1 and Mythos 5.1. They are also designed to communicate more clearly and use fewer tokens for certain complex tasks.
Introducing Claude Fable 5.2 and Claude Mythos 5.2, designed to tackle the most daunting technical challenges. They’re capable collaborators on ambitious projects in many fields, and show improvements in areas like coding, reasoning, and vision. https://t.co/jP0AutLxXb
— Claude (@claudeai) November 9, 2026
Anthropic Claude Fable 5.2 and Mythos 5.2: Availability and pricing
Claude Fable 5.2 is available to all Claude users. However, access to Claude Mythos 5.2 is currently restricted. Anthropic is offering it only to verified organisations working in cybersecurity and biomedical research.
Anthropic has also reduced the pricing of both models compared with their previous versions. The standard pricing starts at $8 per million input tokens and $40 per million output tokens.
Users who want faster responses can opt for the fast mode. It costs $16 per million input tokens and $80 per million output tokens.
Ayushi Jain Ayushi works as Chief Copy Editor at Digit, covering everything from breaking tech news to in-depth smartphone reviews. Prior to Digit, she was part of the editorial team at IANS.
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