Model Library
Browse and deploy state-of-the-art AI models through the DEVUP Gateway.
Browse and deploy state-of-the-art AI models through the DEVUP Gateway.
GPT-5.6 Sol is the flagship of OpenAI's GPT-5.6 family and the model the bare gpt-5.6 alias resolves to. What separates it from the two tiers below is not the envelope — all three share the same context window, output ceiling, input types, and six reasoning levels — but persistence. It is built to stay coherent through multi-hour agent sessions rather than stopping early, and it reaches frontier results while emitting fewer output tokens than its predecessors needed. It reasons across six effort levels, carries its chain of thought between turns when you let it, and offers a separate pro execution mode for work where reliability outweighs latency. Text and images in, text out, against a context window slightly beyond a million tokens.
