by OpenAI

OpenAI: GPT-6 Astra.

multimodal closed 1.1M ctx
Cheapest input
$10.0/M
on OpenRouter
Cheapest output
$50.0/M
on OpenRouter
Hosted equiv.
~$18.0/hr
@ 100 tok/s on OpenRouter

GPT-6 Astra is OpenAI's flagship model for demanding end-to-end work. It is suited for advanced analysis, software engineering, deep research, scientific work, and document creation, with particular strengths in long-hor

Hosted API only

No self-host path — closed weights.

OpenAI: GPT-6 Astra's weights aren't published. Use it via the access providers below.

Where to use it

Cheapest hosted endpoints.

Provider Access $/M in $/M out
OpenRouter api aggregator $10.0 $50.0 Launch ↗
FAQ

Frequently asked.

How do I run OpenAI: GPT-6 Astra?
OpenAI: GPT-6 Astra is a closed-source API model. The cheapest way to access it is through the API providers listed on this page (direct API, aggregators, and hosted chat UIs).
Where can I access OpenAI: GPT-6 Astra?
OpenAI: GPT-6 Astra is available via OpenRouter. Each access option lists its own pricing (per million tokens or hourly hosting).
How much does it cost to run OpenAI: GPT-6 Astra?
API pricing starts at $10.0/M input tokens and $50.0/M output tokens. Self-hosting cost depends on the GPU you rent — see the Run It Yourself tab.
Is OpenAI: GPT-6 Astra open-source or proprietary?
OpenAI: GPT-6 Astra is a proprietary model from OpenAI. Access is API-only — there are no public weights to download.