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GPT-6 AstraAPI
GPT-6 Astra is OpenAI's flagship model for demanding end-to-end work.
Prices update automatically — checked daily against provider list prices.
- $20 per 1M tokens, assuming 3 input for 1 output the convention used by Artificial Analysis
- cheaper than 6% of the 227 commercial models tracked here
- 87 of 100 OpenAI models tracked here, from cheapest
Benchmarks & performance
Independent benchmark scores for GPT-6 Astra, measured by Artificial Analysis. Higher is better. Measurement mode: Max.
Models at this level cost $10 per 1M tokens (median of 7) — this one costs $20.
Cheaper and better on this index: Claude Opus 5.5 · Claude Opus 5.5 (batch) · Claude Sonnet 5.5 and 2 more
About this model
GPT-6 Astra is a commercial AI model by OpenAI. The specifications below are tracked automatically: pricing is refreshed daily 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-6 Astra?
GPT-6 Astra is an AI language model from OpenAI. It is a proprietary model, available through an API. It scores 52.7 on the Artificial Analysis intelligence index.
Is GPT-6 Astra free?
GPT-6 Astra is not free: it costs $10 per million input tokens and $50 per million output tokens. Open-weight alternatives can be self-hosted at no per-token cost.
What is GPT-6 Astra good at?
Independent benchmarks from Artificial Analysis give it GPQA 96.1%, Humanity's Last Exam 54.7%, Long Context Reasoning 80.7%, SciCode 56.5%, τ-Bench Banking 41.4%, Terminal-Bench 88.4%. It is particularly used for code generation.
How fast is GPT-6 Astra?
It generates about 50.2 tokens per second, with a median 250.52s delay before the first token. Measured independently by Artificial Analysis.