GPT-6.1 Terra from OpenAI is now available on AI Gateway .

GPT-6.1 Terra is a fast model for visual reasoning, computer use, and writing, and it improves on the previous Terra model in visual reasoning, factual accuracy, and coding. It suits high-volume work in documents and desktop apps, such as filling out forms, interpreting technical drawings, or entering invoice details into accounting software. OpenAI still recommends its larger GPT-6 models for the most complex coding tasks.

The model accepts text and images and returns text, with a context window of more than 1M tokens. It supports configurable reasoning effort , structured outputs , tool calling, and implicit and explicit prompt caching . For latency-sensitive work, fast mode is available as openai/gpt-6.1-terra-fast .

GPT-6.1 Terra works with the AI SDK , the OpenAI-compatible Chat Completions API , the Responses API , and coding agents connected to AI Gateway.…