GPT-5.5 is twice as expensive as GPT-5.4 due to the doubling of the input cost. I doubt it’s twice as smart. Also, I had issues with the Cursor cache (or it really is TOO EXPENSIVE).
I saw a lot of negativity on 4.7 on various social media platforms. Although it worked fine for me during the launch discount.
Both models seem overpriced to me. I’d stick with GPT-5.4 for complex/important tasks, GPT-5.3 Codex/GPT-5.1 for medium tasks, and Composer 2 for simple tasks.
Sonnet 4.6 Max for debugging.