GPT-5.5 Pro — OpenAI | AI Model Details | Neura | Neura Market
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    OpenAI

    GPT-5.5 Pro

    by OpenAItext+image+file->text1 endpoint

    Overview

    GPT-5.5 Pro is OpenAI’s high-capability model optimized for deep reasoning and accuracy on complex, high-stakes workloads. It features a 1M+ token context window (922K input, 128K output) with support for...

    Capabilities

    Text generation
    Image understanding
    Tool use / Function calling
    Structured output
    Extended reasoning
    Web search
    Long context

    Modalities

    Input
    FileImageText
    Output
    Text

    Technical Specifications

    Context Window
    1.1M tokens
    Max Output
    128K tokens
    Knowledge Cutoff
    2025-12-01
    Tokenizer
    GPT
    Content Moderation
    Enabled
    Uptime (24h)
    10000.0%

    Supported Parameters

    include_reasoningmax_tokensreasoningresponse_formatseedstructured_outputstool_choicetools

    Pricing

    Per 1M tokens
    Input$30.00
    Output$180.00
    Web search$10000.00
    OpenAI Website
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    April 24, 2026
    Last synced 6/11/2026

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