Fireship · 2026-04-10 · notable
Fireship: Claude Mythos Is Too Dangerous for Public Consumption
Fireship's take on Anthropic's decision not to publicly release Claude Mythos as open weights, citing dangerous capability evaluations — with typical dry wit analyzing what 'too dangerous' actually means.
Anthropic says Claude Mythos is too dangerous to release publicly. Fireship says: let's talk about that.
What is it?
Fireship's fast-paced commentary on Anthropic's withholding of Claude Mythos open weights due to dangerous capability thresholds in their evaluation framework.
How does it work?
The video examines what capability evaluations Mythos reportedly exceeded, the implications for open-model policy, and Anthropic's position versus competitors like Meta.
Why does it matter?
How labs define and enforce 'too dangerous to release' thresholds will shape the open vs. closed AI model debate for years.