GPT-6 Astra

OpenAI· released 4 Sept 2026

openai/gpt-6-astra
Input / 1M tokens
$10
Output / 1M tokens
$50
Context window1.1M tokens

Longest answer: 128K tokens

reads filereads imagereads texttool callingvisionreasoning

About

GPT-6 Astra is OpenAI's flagship model for demanding end-to-end work, released on 2026-09-04. Its listed uses include advanced analysis, software engineering, deep research, scientific work, and document creation, with particular strengths in long-horizon work. It accepts file, image, and text inputs and returns text. It supports tools, vision, and reasoning. The context window is 1,050,000 tokens, and the maximum output is 128,000 tokens. Its model ID is openai/gpt-6-astra. Listed pricing is USD 10 per 1M input tokens and USD 50 per 1M output tokens. Teams comparing it for demanding tasks can consider its stated range of use cases alongside its input formats, long context, output limit, and token costs when deciding whether it fits their stack.

Who it is for

GPT-6 Astra suits teams working on advanced analysis, software engineering, research, scientific work, or document creation. Its stated strengths in long-horizon work may fit tasks that span multiple steps.

What is good

  • Supports reasoning, tools, and vision.
  • Accepts file, image, and text inputs.
  • Context window is 1,050,000 tokens.
  • Maximum output is 128,000 tokens.

What to know first

  • Input costs USD 10 per 1M tokens.
  • Output costs USD 50 per 1M tokens.

Verdict

GPT-6 Astra is aimed at demanding work across analysis, software engineering, research, science, and documents. Its listed prices are USD 10 per 1M input tokens and USD 50 per 1M output tokens, so evaluate costs alongside the task fit.

Details

Lab
OpenAIopenrouter.ai · 3 Oct 2026
Context
1,050Kopenrouter.ai · 3 Oct 2026
Input price
$10 / 1Mopenrouter.ai · 3 Oct 2026
Output price
$50 / 1Mopenrouter.ai · 3 Oct 2026
Max output
128,000 tokensopenrouter.ai · 3 Oct 2026
Inputs
file, image, textopenrouter.ai · 3 Oct 2026
Open weights
Noopenrouter.ai · 3 Oct 2026

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