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    gpt-6-astra

    Auto-router

    openai/gpt-6-astra

    ChatVisionFilesToolsSystem prompt

    Context

    1.1M

    Max output

    —

    Input / 1M

    $10.00

    Output / 1M

    $50.00

    Cached / 1M

    $1.00

    Cutoff

    Apr 2026

    About this model

    GPT-6 Astra is OpenAI's most capable broadly deployed model, built for the hardest end-to-end work. It excels at complex reasoning, coding, computer use, research, and document creation, and is OpenAI's first model to reach the Critical level of cybersecurity capability under its Preparedness Framework.

    Best suited for

    • Complex reasoning, multi-step problem solving, coding and software engineering, computer use, agentic workflows, research, and document creation.

    Built-in tools

    Image generationWeb searchGtwy web search

    Hosted by the gateway — enable them per request without wiring your own endpoint.

    Capabilities

    Vision

    Accepts images alongside text in the same message.

    Files

    Accepts file attachments — PDFs, transcripts, spreadsheets.

    Tools

    Native function calling, so agents can invoke your endpoints.

    System prompt

    Honours a dedicated system role, separate from the user turn.

    Supported parameters

    additional_parameters