Analysis of GPT-5.6 Sol Ultra Mode: The Multi-Agent Collaboration Technology Behind the 91.9% Benchmark Score
OpenAI quietly opened a limited preview window for the GPT-5.6 family on June 26, 2026. The part engineers are most likely to miss, but should care about most, is the flagship model Sol’s newly added max reasoning and ultra mode. The former extends how long a single reasoning chain can think, while the latter gives … Read more
