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Sources

Anthropic wants competitors using Mythos

My interview with Anthropic's Logan Graham. Also: OpenAI’s chairman defends Sam Altman, and people seem to like Meta's new model.

Alex Heath's avatar
Alex Heath
Apr 08, 2026
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It was fun seeing some of you at HumanX in SF yesterday. Shoutout to Laude Institute for inviting me to a very cool dinner with the one and only Neal Stephenson. I’m in NYC for Joe Marchese’s excellent and thought-provoking Human Attention Summit (no relation to HumanX), where I participated in a fun panel this morning about reporting on AI with Sara Fischer, Julia Alexander, and Alex Kantrowitz.


“The world’s largest security rethink effort”

Anthropic is open to letting even OpenAI into the defensive cyber program it built around Mythos, the frontier model it revealed yesterday, but chose not to publicly release.

“I could easily imagine this could transition very quickly into a third-party-led consortium that features all the other model providers,” Logan Graham, who leads Anthropic’s frontier red team, told me today. He confirmed that Anthropic already has “active competitors” in the program, which is called Glasswing.

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