GPT-6 Astra

GPT-6 Astra is OpenAI's September 2026 flagship for difficult end-to-end coding, research, computer-use, and document workflows; it is released but still rolling out beyond Trusted Access organizations.

Platform: OpenAI

Language ModelReasoningCodingComputer UseAgent WorkflowsOpenAI

OpenAI-hosted / staged rollout

Standard: $10/1M input, $1/1M cached input, $12.50/1M cache write, and $50/1M output; above 272K input uses 2x input/cache and 1.5x output; Batch/Flex 50%, Fast 2x

Commercial

🚀Function Overview

GPT-6 Astra is OpenAI's highest-capability route for hard end-to-end work, with long context and a broad hosted-tool surface, but access is not yet general and token prices are high.

Key Features

Official API model ID gpt-6-astra
Released September 3, 2026 with Trusted Access first and broader access rolling out
1,050,000-token context window and 128,000-token maximum output
Text and image input with text output
Low, medium, high, xhigh, and max reasoning effort
Standard pricing of $10 input, $1 cached input, $12.50 cache write, and $50 output per million tokens
Requests above 272K input tokens use 2x input/cache and 1.5x output rates for the full request
Responses API tools include search, image generation, code interpreter, hosted shell, apply patch, skills, computer use, MCP, and tool search
April 30, 2026 knowledge cutoff
OpenAI's first model classified at the Critical cybersecurity capability threshold

Use Cases

•Difficult end-to-end coding and repository work
•Research workflows combining search, files, tools, and long context
•Computer-use and document-creation agents
•Escalation after cheaper models fail task acceptance checks
•Approved high-capability defensive security evaluation

⚙️Input Parameters

model

string

Use gpt-6-astra when the active OpenAI organization has rollout access.

input

object

Text or supported image content sent through the Responses API or another documented endpoint.

reasoning.effort

string

Choose low, medium, high, xhigh, or max based on task difficulty and cost tolerance.

tools

array

Optional OpenAI-hosted or developer-defined tools supported by the active Responses API contract.

💡Usage Examples

Example 1

Input Parameters

{
  "model": "gpt-6-astra",
  "input": "Inspect this repository, reproduce the failing workflow, implement the smallest fix, and verify the result.",
  "reasoning": {
    "effort": "high"
  }
}

Output Results

GPT-6 Astra returns a tool-using response when the account has access. Validate permissions, task success, token use, and review burden before production routing.

Quick Actions

Use NowView Documentation

Technical Specifications

Hardware Type: OpenAI-hosted / staged rollout
Commercial Use: Supported
Pricing: Standard: $10/1M input, $1/1M cached input, $12.50/1M cache write, and $50/1M output; above 272K input uses 2x input/cache and 1.5x output; Batch/Flex 50%, Fast 2x
Platform: OpenAI

Related Keywords

GPT-6 Astragpt-6-astraGPT-6 Astra APIGPT-6 Astra pricingGPT-6 Astra availabilityGPT-6 Astra context windowGPT-6 Astra vs Claude Fable 5.1OpenAI Astra model

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