gpt-5.6-terra · OpenAI
GPT-5.6 Terra is designed for workloads that balance intelligence and cost. It roughly corresponds to the mini model tier used in earlier GPT-5 families.
GPT-5.6 Terra is designed for workloads that balance intelligence and cost. It roughly corresponds to the mini model tier used in earlier GPT-5 families.
GPT 5.6 Terra has a 1,050,000 token context window. It supports up to 128,000 output tokens.
On AIHubMix, GPT 5.6 Terra costs $2 per million input tokens and $12 per million output tokens. Cached input reads are billed at $0.2 per million tokens.
GPT 5.6 Terra accepts text and image input.
GPT 5.6 Terra supports tool calling, thinking and structured outputs. Per-protocol parameter support is listed in the capability table on this page.
GPT 5.6 Terra is available through the AIHubMix unified API. The API is OpenAI-compatible: point your OpenAI SDK at https://aihubmix.com/v1, use your AIHubMix API key, and set the model name to gpt-5.6-terra — no other code changes needed.
GPT 5.6 Terra is developed by OpenAI. AIHubMix aggregates it alongside models from other providers behind one API and one bill.
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Use GPT 5.6 Terra via the AIHubMix unified API — one interface for every major LLM.