Community Notes corrects Anthropic engineer Cherny who called A/B effort reduction "an issue but not a bug"

After Anthropic engineer Scott Cherny described Claude Code's A/B reasoning-effort reduction as an issue rather than a bug, a Community Notes correction on X rated the statement misleading: the behavior was a deliberate test configuration, not an unintended one. The incident drew renewed attention to how Anthropic communicates undisclosed model behavior changes to developers who depend on consistent outputs.