Great experience in the first 24 hours. Cheaper than Opus 4.8, at least on the same level if not higher (subjective impression). Not seeing big differences in output between GPT 5.5, Opus 4.8, GPT 5.6 though, all of them are quite perfect already (with proper workflows and context engineering of course). The major difference so far had been that Opus 4.8 was better at visual design than GPT 5.5, though none of theme were particularly good at it, so adding visual design skills (e.g the “taste” skill) was still needed. I’m excited to see whether GPT 5.6 has better visual taste, as they promised