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GPT-5.6 TerraAPI
GPT-5.6 Terra (OpenAI): live API pricing, context window and the best open-source alternatives, tracked daily by olud.ai.
Prices update automatically — checked hourly against provider list prices.
Benchmarks & performance
Independent benchmark scores for GPT-5.6 Terra, measured by Artificial Analysis. Higher is better. Measurement mode: max.
About this model
GPT-5.6 Terra is a commercial AI model by OpenAI. The specifications below are tracked automatically: pricing is refreshed hourly from public list prices, so the numbers on this page reflect the current cost of using the model through its API.
Frequently asked questions
What is GPT-5.6 Terra?
GPT-5.6 Terra is an AI language model from OpenAI. It is a proprietary model, available through an API. It scores 55 on the Artificial Analysis intelligence index.
Is GPT-5.6 Terra free?
GPT-5.6 Terra is not free: it costs $1.25 per million input tokens and $7.5 per million output tokens. Open-weight alternatives can be self-hosted at no per-token cost.
What is GPT-5.6 Terra good at?
Independent benchmarks from Artificial Analysis give it GPQA 92.5%, Humanity's Last Exam 41.8%, Long Context Reasoning 74%, SciCode 53.9%, IFBench 71.2%, τ²-Bench 86.3%, τ-Bench Banking 31.8%, Terminal-Bench 88%, Terminal-Bench Hard 57.6%. It is particularly used for code generation.
How fast is GPT-5.6 Terra?
It generates about 136.5 tokens per second, with a median 106.97s delay before the first token. Measured independently by Artificial Analysis.