A high-end general AI model in OpenAI’s GPT-5.6 series.
GPT-5.6 Sol is a driver with a new engine. Same road, but faster and smoother. It even tells you why it took each turn.
Use it for chat, coding, and hard reasoning. It gets you to a good plan faster.
GPT-5.5
GPT-5.6 Sol is a later step in the GPT-5.x line.
GPT
GPT-5.6 Sol continues the GPT family path for general language models.
LLM
GPT-5.6 Sol is still a kind of large language model.
Frontier model
GPT-5.6 Sol is part of the race for the strongest general models.