gpt-5-6-terraGPT-5.6 Terra is designed for workloads that balance intelligence and cost — the mini tier of the GPT-5.6 family. It offers higher reasoning at fast speed, text + image input and text output, a 1,050,000-token context window, 128,000 max output tokens, reasoning-token support, and a Feb 16 2026 knowledge cutoff. Official pricing $2.5 input / $15 output per 1M tokens. Coming soon on API Models: one API key for every model, priced below official, reachable from China, only successful requests billed.
The mini tier — strong reasoning at a fraction of the frontier price
Reasoning-token support with fast response
Text + image input, text output; 1.05M context, 128K max output
$2.5 / $15 per 1M official — launching on API Models below official
This model is not callable yet. When it launches you can call it through our unified OpenAI-compatible API — one key for every model, priced below official, reachable from China. See the overview and FAQ below in the meantime.
View LLM API docsGPT-5.6 Terra is a Large Language Model API provided by OpenAI. GPT-5.6 Terra is designed for workloads that balance intelligence and cost — the mini tier of the GPT-5.6 family. It offers higher reasoning at fast speed, text + image input and text output, a 1,050,000-token context window, 128,000 max output tokens, reasoning-token support, and a Feb 16 2026 knowledge cutoff. Official pricing $2.5 input / $15 output per 1M tokens. Coming soon on API Models: one API key for every model, priced below official, reachable from China, only successful requests billed. Through API Models platform, you can access this model via a unified API with transparent pay-as-you-go pricing. Current pricing: Input: $2.5, Output: $15 per 1M tokens.
Build intelligent conversational systems to automatically answer user queries and improve service efficiency.
Automatically write articles, emails, ad copy, and other text content to boost productivity.
Assist with code writing, debugging, and code review to accelerate software development.
Understand and analyze unstructured data, extract key insights, and generate summary reports.
GPT-5.6 Terra is available through API Models at: Input: $2.5, Output: $15 per 1M tokens. Billing is pay-as-you-go — you only pay for what you generate.
Sign up at API Models, get your API key, and call our unified API endpoint. We provide detailed API documentation with code examples in cURL, Python, and Node.js.
API Models offers the same GPT-5.6 Terra model through our aggregation platform. We provide a unified API interface so you do not need separate accounts for each provider - one API key to access all models.
GPT-5.6 Terra is the mini tier of the GPT-5.6 family, built to balance intelligence and cost — higher reasoning at fast speed, text + image input, a 1,050,000-token context, 128,000 max output, reasoning-token support, Feb 2026 cutoff. Official pricing $2.5 input / $15 output per 1M tokens. Coming soon on API Models, priced below official.
Coming soon (preview). At launch it will be callable via the OpenAI-compatible /v1/chat/completions endpoint — one API key for every model, reachable from China, only successful requests billed.
On API Models, GPT-5.6 Terra runs alongside 60+ models on one API key and one balance, so choosing is about fit, not lock-in. It supports Balanced, Higher Reasoning, Fast, 1.05M Context, and you can weigh it on price and capability against other Large Language Model models, then switch by changing a single model-name string — no new account or integration. Browse every Large Language Model option with live pricing at apimodels.app/models.
GPT-5.6 Terra supports: Balanced, Higher Reasoning, Fast, 1.05M Context. See the API Models docs for full parameters and call examples.
Yes. API Models exposes GPT-5.6 Terra through a single unified API and one key — no separate provider accounts, and no need to handle each provider's regional network access yourself.
We support Stripe (Visa, Mastercard, and other international cards) and Alipay. Credits are available instantly after payment.