Aider Says 'No Endpoints Found' — Your Model Was Retired, Here's How to Fix It

Automated excerpt

Today it 404s on every request with something like "No endpoints found for anthropic/claude-3-opus. " and you're wondering what broke. Aider (and most agent CLIs) route chat through a provider like OpenRouter. Every request against it fails with the same 404: httpx. HTTPStatusError: Client error '404 Not Found' for url 'https://openrouter. ai/api/v1/chat/completions' litellm. OpenRouterException: {"error":{"message":"No endpoints found for anthropic/claude-3-opus. ","code":404},... } That "No endpoints found" message is OpenRouter's standard response for a model that no longer exists.

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