GPT-6 Astra

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-horizon agentic tasks that involve computer and browser use.

ChatOpenAI1M tokens$10.9006 / $54.503 · 1M

openai/gpt-6-astra

Context
1M tokens
Completion cap
128,000
Tools
Yes
JSON
Yes
Released
2026-09-04

Call it from Geek Hub

Same OpenAI SDK. Change the base URL and the model id.

curl https://api.geekhub.mx/v1/chat/completions \
  -H "Authorization: Bearer $GEEKHUB_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "openai/gpt-6-astra",
    "messages": [{"role": "user", "content": "Hola"}]
  }'
Get an API key

Frequently asked questions

What is GPT-6 Astra?
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-horizon agentic tasks that involve computer and browser use. GPT-6 Astra runs on the Geek Hub API (OpenAI-compatible). Model id: openai/gpt-6-astra.
Is GPT-6 Astra free?
No. Input is $10.9006 per 1M tokens and output is $54.503 per 1M tokens on Geek Hub (markup included).
What is the context length of GPT-6 Astra?
GPT-6 Astra has a 1M tokens context window. It supports up to 128,000 completion tokens.
Does GPT-6 Astra support tool calling and structured outputs?
GPT-6 Astra accepts tools and tool_choice for function calling. It also supports structured outputs via a JSON schema in response_format.
When was GPT-6 Astra released?
GPT-6 Astra was released on 2026-09-04.

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