I've been tracking Reddit's opinion of Opus 5.5 every day since it launched. It dropped sharply on 30 Sep.

There have been a lot of "Opus 5.5 got nerfed" threads the last two days, so I checked what the numbers actually say! My site reads 25 AI subreddits and scores every opinion about a specific model (1–5, mapped to 0–100, 50 = neutral). For Opus 5.5: • 25–28 Sep: 71–73 every day • 29 Sep: 69 • 30 Sep: 58 • Today so far: 55 Is the model nerfed? Well, I have no idea! My site measures what people say, not what the model does. A change in limits, an outage or a new model next to it (Sonnet 5.5, GPT-6.1 Sol) can move opinion just as much. If you want to take a look at the daily graph for Opus 5.5 (or other models) you can check it out here: https://modelsentiment.com/m/claude-opus-5.5 Disclosure: I built this. It's free and non-commercial, with no ads or signup. It shows numbers and thread titles, never anyone's comments. Happy to answer questions about the solution :)