06/10/2026
New Anthropic policy: "To ensure we're responsibly deploying Mythos-class models, we are requiring limited data retention and review as part of our safety work. Prompts submitted to, and outputs generated by, Mythos-class models are retained for 30 days for trust and safety purposes, on every platform where these models are offered. "
If you use fable/mythos - they collect your data ...no exceptions even for enterprise partners.
Even if your organization previously negotiated zero-data retention agreements, you are now subject to this new 30-day window.
Advanced power now comes with a new set of data governance trade-offs.
Anthropic is like an abusive parent who buys you the best toys so you just deal with it.
Claude is Anthropic's AI, built for problem solvers. Tackle complex challenges, analyze data, write code, and think through your hardest work.