OpenAI: GPT-6.1 Terra

GPT-6.1 Terra is a paid OpenAI model that accepts text, image, and file inputs. Its context window holds 1,050,000 tokens, and a single response can run up to 128,000 tokens. It supports tool calling and reasoning. The listing does not say whether it supports structured output or whether its weights are available. Pricing is $1.00 per million input tokens and $5.00 per million output tokens. Input costs a fifth of output, so workloads that feed in far more than they generate, such as long documents, file batches, or large codebases, benefit most from the rate. Teams that need very long context, mixed file and image input, and tool use in one model should shortlist it. It has no independent benchmark coverage yet, so its quality is unproven. Test it on your own tasks and compare results against benchmarked models at a similar price before committing.