One model, three deaths: Claude 3 Haiku goes dark on Google Cloud tomorrow, four months after its maker switched it off

Anthropic retired claude-3-haiku-20240307 from its own API on 20 April 2026. The model has been running ever since — on somebody else's infrastructure. Google Cloud lists the same model as deprecated since 23 February 2026 and scheduled to be shut down on 23 August 2026: 125 days after the maker's own retirement date. Amazon Bedrock goes further still. There Claude 3 Haiku entered the Legacy state on 10 March 2026 and carries an end-of-life date of 10 September 2026 — 143 days past the maker. The Bedrock entry adds a wrinkle the other two do not have. Since 10 June 2026 the model has been in what AWS calls public extended access: a phase reserved for models that have already spent at least three months in Legacy, in which the provider may raise the price and AWS tells customers to expect exactly that. In other words, the last stretch of a model's life can be its most expensive. Anthropic states the rule plainly on its deprecation page: the dates published there apply to Anthropic-operated platforms only, and partner clouds set their own schedules. The gap runs in both directions — Google switched off Claude 3 Opus on 1 August 2025, months before the maker's own cut-off, while it kept Haiku alive four months longer. The practical consequence for anyone reading a model's retirement date: that date describes one platform, not the model. Claude 3 Haiku shipped in March 2024, has been unavailable from its maker since April, and will still be answering requests on Amazon's cloud three weeks from now.