model-deprecation

Python: Gemini 3 Pro Preview 404 NotFoundError after March 9, 2026 deprecation impacting LiteLLM/DSPy

Anthropic API returns HTTP 404 (not_found_error) for claude-3-haiku-20240307 and claude-haiku-4-20250414 model IDs. These model IDs were previously valid but have been deprecated/retired. Code that ha