Model Releases
One of the most confusing aspects of GPT-5.6 is figuring out which model to use at which reasoning effort - sounds like Sol on Medium might …
One of the most confusing aspects of GPT-5.6 is figuring out which model to use at which reasoning effort - sounds like Sol on Medium might be a good new default for coding work, if it's an upgrade fr
One of the most confusing aspects of GPT-5.6 is figuring out which model to use at which reasoning effort - sounds like Sol on Medium might be a good new default for coding work, if it's an upgrade from my previous favorite 5.5 xhigh FYI: 5.6 Sol medium is better than 5.5 xhigh. As you go higher in reasoning levels on Sol, you will get insane levels of performance, but can burn through limits much more rapidly. We’re working on communicating this better!
Source: Simon Willison (X) | 2026-07-10