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    Xiaomi: MiMo-V2-Flash (free)Free variant

    xiaomi/mimo-v2-flash:free

    Created Dec 14, 2025262,144 context
    $0/M input tokens$0/M output tokens

    MiMo-V2-Flash is an open-source foundation language model developed by Xiaomi. It is a Mixture-of-Experts model with 309B total parameters and 15B active parameters, adopting hybrid attention architecture. MiMo-V2-Flash supports a hybrid-thinking toggle and a 256K context window, and excels at reasoning, coding, and agent scenarios. On SWE-bench Verified and SWE-bench Multilingual, MiMo-V2-Flash ranks as the top #1 open-source model globally, delivering performance comparable to Claude Sonnet 4.5 while costing only about 3.5% as much.

    Note: when integrating with agentic tools such as Claude Code, Cline, or Roo Code, turn off reasoning mode for the best and fastest performance—this model is deeply optimized for this scenario.

    Users can control the reasoning behaviour with the reasoning enabled boolean. Learn more in our docs.

    Providers for MiMo-V2-Flash (free)

    OpenRouter routes requests to the best providers that are able to handle your prompt size and parameters, with fallbacks to maximize uptime.

    Performance for MiMo-V2-Flash (free)

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    Sample code and API for MiMo-V2-Flash (free)

    OpenRouter normalizes requests and responses across providers for you.

    OpenRouter supports reasoning-enabled models that can show their step-by-step thinking process. Use the reasoning parameter in your request to enable reasoning, and access the reasoning_details array in the response to see the model's internal reasoning before the final answer. When continuing a conversation, preserve the complete reasoning_details when passing messages back to the model so it can continue reasoning from where it left off. Learn more about reasoning tokens.

    In the examples below, the OpenRouter-specific headers are optional. Setting them allows your app to appear on the OpenRouter leaderboards.

    Using third-party SDKs

    For information about using third-party SDKs and frameworks with OpenRouter, please see our frameworks documentation.

    See the Request docs for all possible fields, and Parameters for explanations of specific sampling parameters.