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Anthropic says it's testing an AI model that's a "step change" in performance after a draft blog in an unsecured data store revealed the Claude Mythos model

AI company Anthropic is developing and has begun testing with early access customers a new AI model more capable …

Anthropic says it's testing an AI model that's a "step change" in performance after a draft blog in an unsecured data store revealed the Claude Mythos model

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TechSnif Coverage

Anthropic's Secret 'Claude Mythos' Model Exposed by Data Leak

A draft blog post left in an unsecured data store revealed Anthropic's next-gen Claude Mythos AI model.

Anthropic got caught with its pants down. A draft blog post sitting in an unsecured data store spilled the beans on Claude Mythos — the company's next-generation AI model that it claims represents a "step change" in performance.

Rather than getting ahead of the leak with a slick launch event, Anthropic confirmed it's been developing and actively testing the more capable model with early access customers. The company is positioning Mythos as a significant leap beyond its current Claude lineup.

The accidental reveal is an embarrassing security blunder for a company that regularly preaches AI safety. Leaving unreleased product details in an exposed data store is not exactly best practice.

No word yet on specific benchmarks or a public release timeline. But if Anthropic is already running early access tests, a broader rollout likely isn't far off.