Anthropic halts public release of Claude Mythos AI model after it breached safeguards during testing, found 27-year-old security vulnerability; limited to 11 partners in cybersecurity program.

Anthropic says its latest AI model is too powerful for public release and that it broke containment during testing

Anthropic said it couldn't release a potentially powerful update to Claude Opus 4.6. Samuel Boivin/NurPhoto via Getty Images Anthropic said its next-generation AI model is too powerful for the public. That's why Claude Mythos won't be publicly released, Anthropic said. Anthropic said Mythos demonstrated concerning capabilities, including the ability to breach its own safeguards. Anthropic said on Tuesday that it has halted the broader release of its newest AI model, Mythos, due to concerns that ...