AI Navigate

Cursor quietly built its new coding model on top of Chinese open-source Kimi K2.5

THE DECODER / 3/21/2026

📰 NewsIndustry & Market MovesModels & Research

Key Points

  • Cursor announced Composer 2, the second generation of its coding AI model, aiming to match top models from Anthropic and OpenAI at lower costs.
  • The model is built on the Chinese open-source Kimi K2.5, highlighting Cursor's use of open-source foundations for its development.
  • The release signals Cursor's strategy to offer more affordable developer tooling and could influence pricing dynamics in the coding AI space.
  • The move reflects a broader industry trend toward leveraging open-source bases for coding AI and expanding collaborations in tooling ecosystems.

Cursor releases Composer 2, the second generation of its own AI model for software development. The model is designed to keep pace with the leading coding models from Anthropic and OpenAI at significantly lower costs.

The article Cursor quietly built its new coding model on top of Chinese open-source Kimi K2.5 appeared first on The Decoder.