Users Claim Opus 5.5 Has Been Weakened, Benchmarks Show No Drop

Users claim Anthropic's Opus 5.5 has been degraded after it repeatedly failed to find a UI bug's root cause, though public benchmarks show no significant decline, leaving the complaints unverified.

2026-10-31 ~ 2026-11-02 · 2 related posts

• Users complain Opus 5.5 feels heavily nerfed — RileyRalmuto · 2026-10-31
• Reddit user suspects Opus 5.5 got worse after circular bug-hunting, benchmarks show no clear decline — hypesfo · 2026-11-02