Max Zeff(@ZeffMax):NEW: Anthropic is walking back Claude Fable 5's policy to covertly degrade performance for competing AI researchers, after facing fierce backlash. “We’re changing Fable 5’s safeguards for frontier LLM development to make them visible,” Anthropic tells WIRED. “We made the wrong tradeoff and we apologize for not getting the balance right.”

Max Zeff

@ZeffMax

Reporter covering AI @WSJ | Formerly @WIRED, @TechCrunch, @markets | DM me off the record on Signal @ mzeff.88

Joined November 2020

2.4K Following 11K Followers

Max Zeff@ZeffMax

2026.06.11 03:18

NEW: Anthropic is walking back Claude Fable 5's policy to covertly degrade performance for competing AI researchers, after facing fierce backlash. “We’re changing Fable 5’s safeguards for frontier LLM development to make them visible,” Anthropic tells WIRED. “We made the wrong tradeoff and we apologize for not getting the balance right.”