OpenAI: GPT-5.6 Terra (batch)

GPT-5.6 Terra (batch) is an OpenAI model that accepts text, image, and file inputs and returns text output. It offers a context window of 1,050,000 tokens with up to 128,000 completion tokens, which suits long documents or large multi-file inputs in a single request. It supports tool calling and reasoning; structured output support is not listed, so verify it before relying on schema-constrained responses. At $1.00 per million input tokens and $6.00 per million output tokens, it is priced for high-volume work, and output-heavy jobs will see costs driven mainly by the output rate. Its blended score of 93.0 rests on only three benchmarks, so treat the ranking as indicative rather than settled. Within that set it scores 100.0 on the coding index, 90.7 on the general index, and a lower 78.2 on the agentic index. Coding teams should shortlist it, while agent-focused buyers should test it against alternatives first.