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Claude Mythos 5.0 Beta Begins Early Access Rollout — Users Report Access to Anthropic's Next-Gen Flagship
Twitter reports with 1,740 likes and 559K views claim Anthropic has quietly begun rolling out Mythos 5.0 beta access to users, moving beyond the March 27 CMS leak that exposed the model's existence. Fortune confirmed Anthropic is 'trialing' the model with early access customers, describing it as 'a step change' and 'the most capable we've built to date.' Anthropic acknowledged the model is 'very expensive to serve' and is working on efficiency before general release — this is controlled deployment, not a public launch.
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