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MoonshotAI: Kimi Dev 72B

moonshotai/kimi-dev-72b

Model weights

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.

Modalities

Context

131K

Released

Jun 16, 2025

Knowledge Cutoff

Dec 2024

ActivityFAQ

Activity

Token volume and request traffic to this model over time.

About MoonshotAI: Kimi Dev 72B

OpenRouter makes MoonshotAI: Kimi Dev 72B available through a unified, OpenAI-compatible API using the model ID moonshotai/kimi-dev-72b.

MoonshotAI: Kimi Dev 72B accepts text and returns text. It has a 131,072-token context window.

It was released on June 16, 2025; its knowledge cutoff is December 31, 2024.

More models from MoonshotAI

  • Kimi K3
  • Kimi K2.7 Code
  • Kimi K2.6

Frequently asked questions

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.

Kimi Dev 72B has a 131,072 token context window.

Kimi K3, Kimi K2.7 Code, Kimi K2.6 and 4 more are other text models from MoonshotAI.

Kimi Dev 72B was released on June 16, 2025. Its knowledge cutoff is December 31, 2024.