GPT-5.6

OpenAI’s new flagship model, GPT-5.6 Sol, performs almost as well as Fable 5 in benchmarks but costs only one-third as much. According to the independent AI evaluation platform Artificial Analysis, GPT-5.6 Sol (max) scores 59 points on the Intelligence Index, just one point behind Claude Fable 5 (max). In Artificial Analysis’s new Coding Agent Index, Sol…