The broad safeguards built into Anthropic's Claude Fable 5, a Mythos-class AI model, blocks some mundane requests on cybersecurity and biology.

Anthropic says these fallbacks occur in fewer than 5% of sessions, meaning most users will effectively interact with the full Mythos-class model during ordinary use. Early testing by security ...

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For developers, Fable 5 is available through the Claude API as claude-fable-5. Anthropic says Fable 5 is fully available today on the Claude API and on consumption-based Enterprise plans. For ...

OpenAI has updated GPT-5.5 Instant, making ChatGPT's default model more conversational, better at advice, and easier to talk to during everyday interactions. The Latest Tech News, Delivered to Your In ...

Anthropic announced Claude Fable 5, a Mythos-class model that will be available to its enterprise customers and paid subscribers. The company unveiled Mythos in April and has limited the rollout ...

Google just launched a wave of new Gemini and Classroom AI tools. Here's what's new, what the trial evidence shows, and what ...

Anthropic is bringing its most powerful AI model to the general public for the first time, but it’s doing it with guardrails. On Tuesday, the AI firm launched Claude Fable 5, the first publicly ...

Anthropic is releasing Claude Fable 5 for general users. Fable 5 uses Mythos-class power with safety controls. Pricing is about twice that of Claude Opus 4.8. Anthropic has announced a defanged ...

The AI company’s newest public model was met with strong backlash over stringent safety rules and refusals to help users, though others described the measures as “reasonable.” ...

Will Claude Mythos make DeFi hacks easier? A look at whether AI-assisted vulnerability scanning by attackers is a real threat ...

The organizations treating AI as a stack, rather than a single model integration, are building durable competitive advantages.​ ...