OpenAI: GPT-5.6 Sol Pro (batch)

GPT-5.6 Sol Pro (batch) is an OpenAI model that accepts text, image, and file inputs. It offers a context window of 1,050,000 tokens and can return up to 128,000 tokens in a single completion, which suits long documents and large multi-file inputs. The listing indicates support for tool calling and reasoning. Structured output support is not specified, so confirm it before building pipelines that depend on strict schemas. At $2.00 per million input tokens and $10.00 per million output tokens, it is a paid option whose costs will be driven largely by output volume. Teams that need very long context, mixed file and image inputs, and tool use in one model should consider shortlisting it. It has no independent benchmark coverage yet, so its quality relative to alternatives is unproven. Run your own evaluations on representative tasks before committing to it.