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    GPT-OSS 120B

    Chat

    gpt-oss-120b

    Get an API key Try it

    GPT-OSS 120B on FlexAI: OpenAI LLM, Apache 2.0 license, served via the OpenAI-compatible Token Factory at the live market-tracked rate.

    Recommended for

    Workflow automation · as Plan

    Pricing

    Input

    $0.035 / M tokens

    Output

    $0.09 / M tokens

    Pricing source

    Context

    128K tokens

    API endpoint

    /v1/chat/completions

    Compatibility

    OpenAI

    Parameters

    120B

    License

    Apache 2.0

    Hardware

    H100

    Quantization

    MXFP4

    Estimate your monthly cost

    M tokens
    M tokens
    10M × $0.035/M input$0.35
    2M × $0.09/M output$0.18
    Estimated monthly cost$0.53

    Estimate only, at the current market-tracked rate. Usage-based; no minimums.

    Get an API key

    Quick Start

    from openai import OpenAI

client = OpenAI(
    base_url="https://tokens.flex.ai/v1",
    api_key="your-api-key",
)

response = client.chat.completions.create(
    model="gpt-oss-120b",
    messages=[
        {"role": "user", "content": "Hello!"}
    ],
)

print(response.choices[0].message.content)
    Get an API key Run this model on a dedicated endpoint