[cbg0]

> This is because GPT-5.6 is just a more posttrained version of GPT-5.5, not a bigger model than GPT-5.5.

What is this very confident assumption based on?

[satvikpendem]

If it were fully trained from scratch, you'd expect to see a major version bump. The other point releases have been fine tunes or post trains.

[CjHuber]

but 5.5 was also no major version bump