Anthropic's newest model, Claude Fable 5, is available in Zed. You can try this model via your own API keys, and it's also available to Pro and Business users.
Fable 5 requires 30-day data retention. This is a break from our standard arrangement with Anthropic, where every other model in Zed today runs under zero data retention: no training on your prompts or code, no retention of inference requests.
Anthropic's reasoning: Fable 5's capabilities introduce risks that real-time filters can't catch on their own.
If you want to maintain ZDR, don't use Fable 5. Every other model in Zed, including the rest of the Claude family, still operates under our standard ZDR commitments.
— The Zed Team
Is this another iteration of 'mythos is so dangerous the public cannot have it' ?