OpenAI: GPT-6.1 Terra (batch)

GPT-6.1 Terra (batch) is an OpenAI model offered through a batch listing. It accepts text, image, and file inputs, and its context window of 1,050,000 tokens lets it take in very large documents or multi-file inputs in a single request. Completions can run up to 128,000 tokens. It supports tool calling and reasoning. The listing does not specify structured output support, so confirm that before relying on schema-constrained responses. At $0.50 per million input tokens and $2.50 per million output tokens, this model belongs on the shortlist for teams processing large volumes of long-context material, where input-heavy workloads keep costs low. The output rate is five times the input rate, so generation-heavy jobs will cost noticeably more. There is no independent benchmark coverage yet, so its quality relative to alternatives is unproven. Run your own evaluations on representative tasks before committing production workloads.