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OpenAI: gpt-6-astra

gpt-6-astra
1.1M context128K outReasoningToolsParallel toolsVisionFilesCacheStructuredWeb searchComputer useStreamingSystem msg
Released Sep 4, 2026Knowledge cutoff Apr 2026Updated Sep 5, 2026

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.

Mode chatTokenizer GPTReasoning levels maxModerated

Inputs used for the providers' own purposes

At least one provider of this model uses your inputs for its own purposes, for example to train AI models. Do not enter personal data of third parties or sensitive data. You can object to this use at any time in your account settings or via "Manage consents" in the chat.

Read the privacy policy

Pricing

Input price
$1.50/ 1M tokens85% off
Output price
$7.50/ 1M tokens85% off
Compatible endpoints openaiVendor OpenAI

Uptime

Performance

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Usage & Ranking

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Supported parameters

All providers = every upstream serving this model supports it. Some providers = depends on which upstream handles the request. Default = the value sent when you leave the parameter unset.

ParameterProvidersDefault
include_reasoningAll providers-
max_completion_tokensSome providers-
max_tokensAll providers-
reasoningAll providers-
reasoning_effortAll providers-
response_formatAll providers-
seedAll providers-
structured_outputsAll providers-
tool_choiceAll providers-
toolsAll providers-
verbosityAll providers-

Frequently asked questions

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