Anthropic's security model blocks the researchers it was built to help (techcrunch.com)
Fable, the public version of Anthropic's Mythos security model, pauses and refuses anything in the 'lexical field' of cybersecurity. Hit a guardrail and it falls back to Claude Opus 4.8 — a weaker model for the task.
The complaint that stuck wasn't about safety theatre. It was the billing question: if it silently swaps in a cheaper model mid-request, who pays the original rate?
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