Cancel your Thursday plans. GPT-5.6 is coming. What we know about the GPT-5.6 model family so far: • Incredibly autonomous models • Fast & cheap (should crush Haiku) • Sol: flagship, frontier reasoning, long-horizon agentic work • Terra: balanced everyday model, GPT-5.5 performance at 2x lower cost • Luna: fastest and cheapest, built for high-volume • New "max reasoning effort" mode is coming • New "ultra mode" that deploys subagents to tackle complex work in parallel Should be an incredible release!(Miles Deutscher)