21:06
2026-07-03
decrypt.co
ai-safety
Claude Fable 5 Isn't Nerfed. The Router Is Just Paranoid
Claude Fable 5's post-reinstatement performance drop on BridgeBench's debugging score from 86.2 to 25.9 was caused by Anthropic's safety classifier routing most tasks to Opus 4.8, not by a degradation…