Been noticing a weird thing where you are selecting sonnet 4 but the model is identify as sonnet 3.5 or 3.5 max? I noticed this a day or two ago but have been able to have it reproduce the same result in different settings without directly or indirectly asking it what model it was. Anyone else havin…

As far as I know, I’ve seen other people reporting the same issue — claiming that Cursor might be using claude-3.5. However, I’ve also seen responses saying that Claude 4 was trained on data claude-3.5, which could explain. Still, it’s usually the difference in output quality between 3.5 and 4. …

I was able to notice the quality and change in knowledge, similar to how when a new session gets popped into your chat and only is going off chat history reference. The Sonney 3.5 OUT is because of something I say at the end of a session, and many documents show it was claude sonnet 4 that was the a…

This thread might be helpful for you. [image] Model Discrepancy: Selected claude-4-sonnet appears to be Claude 3.5 Sonnet Bug Reports Interesting to know. I started experiencing a VERY significant drop in quality around last Thursday/Friday (and I’ve been actively using C…

Cursor using Claude Sonnet 3.5 Max instead of Selected 4.0?

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qurore (Qurore) July 12, 2025, 10:28pm 4

This thread might be helpful for you.

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Sonnet 4 Opus fallback to Sonnet 3.5 (duplicate) Bug Reports	3	183	June 13, 2025
Claude 4 is reporting as Claude 3.5 Bug Reports	20	4233	July 14, 2025
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Cursor using Claude Sonnet 3.5 Max instead of Selected 4.0?

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