Claude Mythos is a wake-up call for Europe's AI safety apparatus
Europe's AI regulators are flying blind. While the UK stress-tests Claude Mythos, Brussels has almost no visibility into a system that can find zero-days better than humans.

Why it matters
Anthropic's restricted access to Claude Mythos exposes a critical gap in Europe's AI safety governance infrastructure, creating a two-speed regulatory environment where the UK moves faster than EU authorities on model oversight.
The key facts
5 to knowAnthropic restricting access to Claude Mythos, a security vulnerability-detection AI
European authorities lack visibility into Claude Mythos deployment and capabilities
UK running independent safety tests on Claude Mythos
Regulatory asymmetry: UK ahead of EU on model evaluation
Security-critical AI model with limited regulatory transparency in EU
Go to the source
The Decoderthe-decoder.com
Publisher excerpt: Anthropic is restricting access to Claude Mythos, an AI model it says can find security vulnerabilities better than most humans. European authorities have almost no visibility into the system, while the UK is already running its own tests. The situation exposes a deeper structural problem.