Elon Musk Publicly Praises Mythos and Fable, Promises Not to 'Cut Off' Anthropic

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With roughly $40 billion in Anthropic revenue riding on hosting arrangements, Elon Musk went out of his way to praise Anthropic's Mythos and Fable models and to publicly commit that SpaceXAI will not cut off Anthropic's access. The statement lands days after SpaceXAI shipped Grok 4.5 as a direct Opus-class competitor undercutting frontier pricing by 60%. The open question for anyone building on hosted frontier models is whether a verbal assurance from a direct competitor is a supply-chain guarantee worth planning around.