Claude Fable 5 API Guide

Where Claude Fable 5 is available and what developers should check before integrating it.

Model name

Anthropic's public launch page says developers can get started with claude-fable-5 via the Claude API.

Provider availability

Integration checklist

• Confirm the provider's exact model slug and release channel.
• Check whether prompt caching is supported and billed at the expected discount.
• Set cost limits for long-running agents before granting repo or tool access.
• Log input tokens, output tokens, cached tokens, latency, and failure mode per run.