Kimi-DevOpen Weight
Released
Kimi-Dev is an AI model released by Moonshot AI on Tuesday, Jun 17 2025, 68 days after Kimi-VL. It is an open-weight model — the trained weights are available to download and run. It is a 72B parameterThe learned values that shape how a model responds. B means billion and T means trillion. For mixture-of-experts models, the total count is larger than the number active for each token. Parameter count alone does not measure quality. model with a 128k token context windowHow much information the model can work with in one request, measured in tokens — pieces of words or other data. This includes your question, attachments, conversation and reply. Limits can vary by model variant and provider.. Benchmark results (shown below) cover SWE-Bench Verified.
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Kimi-Dev was released in June 2025 as Moonshot AI's 72-billion-parameter model for software-engineering tasks. Its training emphasized working in real code repositories, using reinforcement learning in environments where changes could be tested. That focus went beyond writing a function from a short prompt to investigating issues and producing edits across an existing project.
Moonshot reported 60.4% on SWE-bench Verified for Kimi-Dev-72B in its evaluation setup and released the weights under the MIT License. The result depended on the surrounding software-agent workflow as well as the model. For developers comparing coding systems, Kimi-Dev represents a specialized repository-repair release, distinct from the later general-purpose agentic Kimi K2 family.
Frequently asked questions
Kimi-Dev was released by Moonshot AI on Tuesday, Jun 17 2025.