Claim: Anthropic holds an unreleased "Model 4" nearly 2x better than Mythos 5.2
daniel_mac8 · x · 2026-11-13
Daniel Mac claims Anthropic ("Ant" in insider slang) has an unreleased Model 4 that is nearly 2x better than Mythos 5.2.
He argues the capability will transfer beyond the cyber domain, implying labs' public best models are not their real ceiling. Unverified rumor, no official confirmation.
Related event: OpenAI's unreleased Cyber model scores 77% on ExploitGym(12 posts)→
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