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    • © 2025 OpenRouter, Inc

    MoonshotAI: Kimi Dev 72B

    moonshotai/kimi-dev-72b

    Created Jun 16, 2025131,072 context
    $0.29/M input tokens$1.15/M output tokens

    Kimi-Dev-72B is an open-source large language model fine-tuned for software engineering and issue resolution tasks. Based on Qwen2.5-72B, it is optimized using large-scale reinforcement learning that applies code patches in real repositories and validates them via full test suite execution—rewarding only correct, robust completions. The model achieves 60.4% on SWE-bench Verified, setting a new benchmark among open-source models for software bug fixing and code reasoning.

    Recent activity on Kimi Dev 72B

    Total usage per day on OpenRouter

    Prompt
    848K
    Reasoning
    312K
    Completion
    263K

    Prompt tokens measure input size. Reasoning tokens show internal thinking before a response. Completion tokens reflect total output length.