GPT-5.6 Sol: First reports about GPT-5.6; The interesting thing about GPT-5.6 Sol is not that it looks cleaner than Opus. It apparently doesn’t.
OpenAI previewed GPT-5.6 Sol on June 26, 2026, but has not yet released the model. Early unverified reports indicate the model initially underperforms Claude Opus in short sessions but surpasses it after roughly 30 hours…