Island found dormant JavaScript injection paths in Adblock for YouTube, a Chrome extension with 10M+ installs, raising ...

GPT-5.5 Cyber tops the CyberGym leaderboard as Anthropic's best models sit offline under a Trump administration export ban.

OpenAI is rolling out the full, limited-release version of GPT-5.5-Cyber—a specialized AI model that outperforms its ...

Many AI users are convinced that OpenAI is quietly running GPT-5.6 inside ChatGPT. OpenAI isn't confirming anything.

Anthropic’s Claude Fable 5 model offers stronger reasoning and coding abilities while attempting to block dangerous uses. A more powerful Mythos 5 variant is restricted to vetted security users.

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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 ...

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 ...

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 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 ...