Model Releases
I had early access to GPT-5.5. It is very good, especially the Pro version. Full writeup very shortly.
Ethan Mollick posted on X about having early access to GPT-5.5, commenting positively on its capabilities and noting that the Pro version is particularly strong. He indicated that a full detailed writ
Ethan Mollick posted on X about having early access to GPT-5.5, commenting positively on its capabilities and noting that the Pro version is particularly strong. He indicated that a full detailed writeup would be published soon, though the specific technical details and performance benchmarks were not provided in this teaser post.
Source: Ethan Mollick (X) | 2026-04-23