Chris is a reliable source for this kind of information, and you can bank on this being accurate.
GPT-5.6 is an iterative improvement on 5.5. Better model & cheap, but not fable-class.
Doesn’t matter though. The training run they’re actually cooking on is setting them up for the Auto Research Assistant in September.
Which I expect to be out July-August, that will be the actually fable competitor
And then when we start the training run on the Vera Rubin class models we should end the year with some pretty spectacular stuff










