Claude Fable relaunch disappoints users with nerfed performance

Anthropic launched the global rollout of its most powerful model, but users report degraded performance and frequent fallbacks to Opus 4.8 on July 1. The company restricts weekly usage for Max subscribers while transitioning entirely to a pay-to-play system via credits after July 7. Anthropic attributes these issues to strict safety guardrails that trigger false positives during coding tasks involving security terms or low-level languages like C and Rust.