Day 0 Support: Claude Fable 5.1

LiteLLM supports Claude Fable 5.1 on Day 0, with spend, rate limits, fallbacks, and logging in one place. Anthropic is live now; Bedrock, Vertex AI, and Azure AI land later today.

LiteLLM supports Claude Fable 5.1 on Day 0, with spend, rate limits, fallbacks, and logging in one place. Anthropic is live now; Bedrock, Vertex AI, and Azure AI land later today.