OpenAI: GPT-5.6 Sol (batch)

GPT-5.6 Sol (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 or large multi-file inputs. It supports tool calling and reasoning; the listing does not confirm structured output support, so verify that before relying on it. Pricing is $1.00 per million input tokens and $5.00 per million output tokens, so output-heavy workloads cost noticeably more than input-heavy ones. Its blended benchmark score of 80.2 rests on a single independent benchmark, with an AI Index score of 77.5. That is a narrow evidence base, so treat its standing as provisional. Shortlist it if you need a very large context with tools and reasoning at this price, and run your own evaluations before committing.