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GPT 6 Astra

For your most demanding work.

Deep reasoningResearchAgentic coding

Overview

OpenAI’s highest-capability GPT 6 model for complex reasoning, software development, research, computer use, and document creation.

Working with GPT 6 Astra

Reasoning effort ranges from low to max. Large-context requests have different official rates.

Specifications

Official model ID
gpt-6-astra
Context window
1,050,000 tokens
Maximum output
128,000 tokens
Input
Text and images
Output
Text
Knowledge cutoff
April 2026

Manufacturer specifications · checked October 8, 2026. Cloud limits are shown separately below.

OpenAI model documentation ↗

Reference pricing

OpenAI standard text rates / 1M tokens

Input$10.00
Output$50.00

Manufacturer rates. Long context, caching, tools, and processing modes can change the price. See the official documentation for details.

opencodex Cloud

Cloud access and prices are shown separately from manufacturer specifications.

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