GTWY logo
    Openai logoOpenai

    gpt-5.2

    Auto-router

    openai/gpt-5.2

    ChatVisionFilesToolsSystem promptReasoning

    Context

    400K

    Max output

    128K

    Input / 1M

    $1.75

    Output / 1M

    $14.00

    Cached / 1M

    $0.175

    Cutoff

    Aug 2025

    About this model

    GPT-5.2 is our best general-purpose model, part of the GPT-5 flagship model family. Our most intelligent model yet for both general and agentic tasks

    Best suited for

    • Complex reasoning, broad world knowledge, and code-heavy or multi-step agentic tasks

    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.

    Reasoning

    Emits a separate thinking pass before the answer.

    Supported parameters

    max_tokensMax Tokens Limit

    Specifies the maximum number of text units (tokens) allowed in a response, limiting its length.

    tools

    Lists tool definitions or capabilities available to the model.

    tool_choice

    Decides whether to use tools or just the model for generating responses.

    response_type

    Defines the format or type of the generated response.

    parallel_tool_calls

    Enables parallel execution of tools, allowing multiple tools to run simultaneously.

    reasoning

    Controls the level of reasoning used by the model.

    verbosity

    Controls how concise or detailed the generated response should be.

    stream

    Sends the response in real-time as it's being generated.

    service_tier