Anthropic's Mythos model accessed by unauthorised users: Bloomberg

A small group of unauthorized users has accessed Anthropic's new Mythos AI model, Bloomberg News reported on Tuesday, citing documentation and a person familiar with the matter.

A handful ‌of users ⁠in ⁠a private online forum gained access to Mythos on the same day that Anthropic first announced a plan to release the model to a limited number of companies for testing purposes, the ⁠report said.

The ‌group has been using Mythos regularly since then, though not ⁠for cybersecurity purposes, according to the report.


"We're investigating a report claiming unauthorised access to Claude Mythos Preview through one of our third-party vendor environments," an Anthropic spokesperson said.

Announced on April 7, Mythos is being deployed ‌as part of Anthropic's "Project Glasswing," a controlled initiative under which select organisations are permitted to ⁠use the unreleased Claude Mythos Preview model for defensive cybersecurity.

Mythos is a powerful AI model that has sparked concerns among regulators about its unprecedented ability to identify digital security vulnerabilities and potential for misuse.