Anthropic Breaking News Alerts

2026-06-10

Anthropic releases Claude Fable 5, its first public Mythos-class model

Anthropic launched Claude Fable 5 on June 9, 2026 — the first Mythos-class AI model made generally available — along with Claude Mythos 5 for vetted cybersecurity partners. The article covers the model's capabilities in coding, vision, and long-horizon tasks; the safety classifier architecture that made a general release possible; pricing at $10/$50 per million tokens; and the timing eight days after Anthropic's confidential S-1 SEC filing.

Anthropic Breaking News Alerts

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Anthropic releases Claude Fable 5, its first public Mythos-class model

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