Which providers still serve each language model, whether a real call gets an answer, what end dates the providers state, and what changed. Once a day the census reads the catalogs of OpenRouter, Vercel AI Gateway, Amazon Bedrock (us-east-1, us-west-2, eu-west-2, ap-southeast-1) and the Anthropic API, plus the deprecations pages of Anthropic and OpenAI, and makes one test call to every text model listed there.
Not added yet: Vertex, Azure, small providers.
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