{"ok":true,"trend":{"id":412933,"platform":"hn","region":"global","key":"livenerf: has opus 5.5 been nerfed yet?","title":"Livenerf: Has Opus 5.5 been nerfed yet?","url":"https://github.com/ninjahawk/livenerf","first_seen":"2026-09-29T23:05:39.787792Z","last_seen":"2026-09-30T20:20:39.630947Z","last_rank":1,"peak_rank":1,"last_volume":857,"peak_volume":857,"seen_count":86,"score":0.934609375,"category_hint":null,"section":null,"category":null,"summary":"A new open-source tool called Livenerf is drawing attention with a pointed question: has Anthropic's Opus 5.5 model been nerfed? The project aims to monitor whether the AI model's real-world performance has quietly degraded since release, a concern that has grown common among developers who suspect providers downgrade models after launch.","why":"Widespread suspicion among AI users that model providers quietly degrade performance after launch, and Opus 5.5 is the latest model under scrutiny.","tone":"neutral","entities":["Livenerf","Opus 5.5","Anthropic"],"summarized_at":"2026-09-30T23:14:07.160549Z","meta":{"lang":"en","link":"https://github.com/ninjahawk/livenerf","hn_id":"49901736","comments":366},"nw":null,"promo":null,"kind":null,"importance":null,"hidden":false,"hide_reason":null,"judged_at":null,"title_en":"Livenerf tracks whether Opus 5.5 has been 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Has Opus 5.5 been nerfed yet?","snippet":null,"posted_at":"2026-09-29T22:36:14Z","likes":857}],"elsewhere":[],"window":"7d"}}