> GPT-4o is different from GPT-4, you can "feel" it is smaller model that really struggles to do reasoning and programming and has a much weaker logic.

FWIW according to LMSYS this is not the case. In coding, current GPT-4o (and mini, for that matter) beat GPT-4-Turbo handily, by a margin of 32 points.

By contrast Sonnet 3.5 is #1, 4 score points ahead of GPT-4o.