Cursor confirms Composer 2 built using Moonshot AI’s Kimi model
Synopsis
Cursor has confirmed that its newly released Composer 2 coding model was built using Moonshot AI’s Kimi K2.5 system. The clarification came after developers raised questions soon after the release. The company said the model was further trained internally before being rolled out to users.
Cursor confirmed that Composer 2 was built using Moonshot AI’s Kimi model and later trained internally. The clarification came after developers questioned similarities between the two coding systems following the launch.
Key Highlights
- Cursor confirmed Composer 2 was built using Moonshot AI’s Kimi K2.5 model as a base.
- The clarification followed developer questions raised shortly after the model was released.
- The company said the model was further trained internally before public rollout.
- Cursor crossed $500 million in annual recurring revenue during 2025, according to earlier reports.
Cursor Composer 2, built using Moonshot AI’s Kimi model, has been confirmed by the company after developers raised questions soon after the new coding tool was released. The clarification came following discussions online about similarities between the two systems.
Cursor said the new version of Composer 2 uses Moonshot AI’s Kimi K2.5 model as a base and was then trained further by its own team before launch. The company added that the tool continues to operate as its own product despite relying on an existing model foundation.
The admission puts Cursor Composer 2, built using Moonshot AI’s Kimi model, at the centre of growing competition in AI-based developer tools, where companies are increasingly improving existing models instead of building everything from scratch.
Developer scrutiny after release
The issue emerged shortly after the release of Composer 2, when developers noticed similarities in the way the model handled code-generation tasks. The company responded publicly and confirmed that the base system came from Moonshot AI.
Moonshot AI released the Kimi K2.5 model earlier in 2026 with a focus on coding and advanced programming tasks. The model is designed to generate software code, understand complex programming prompts and support developer workflows.
The confirmation means Cursor Composer 2, built using Moonshot AI’s Kimi model, was not created entirely independently, although the company said it made additional improvements before launch.
Rapid growth in the AI coding tools market
Cursor is developed by US-based startup Anysphere, which has grown quickly as demand for AI coding tools has increased. Earlier reporting showed the company crossed $500 million in annual recurring revenue in 2025 and secured a multi-billion-dollar valuation.
The growth reflects wider industry trends, with AI coding tools becoming more common among developers in the United States, Europe and Asia. Several companies are now competing to offer software-development assistants that automatically write and improve code.
As competition grows, Cursor Composer 2, built using Moonshot AI’s Kimi model, has drawn attention not only because of the new release but also because of how modern AI models are now being developed using existing systems.
Company position and model use
Cursor said the new tool was trained further after using the Kimi model as a base. The company also said the development approach follows common industry practices where teams adapt and refine existing models.
The statement confirms once again that Cursor Composer 2, built using Moonshot AI’s Kimi model, is part of a broader trend where AI startups build new tools by improving available models instead of starting from zero.
FAQs
Q1. What did Cursor confirm about its Composer 2 coding model?
Cursor confirmed that Composer 2 was built using Moonshot AI’s Kimi K2.5 model as the base system.
Q2. Why did Cursor clarify the use of the Kimi model?
The company issued the clarification after developers noticed similarities between Composer 2 and Moonshot AI’s Kimi model.
Q3. What is the Kimi model used in Composer 2?
Kimi is an AI coding model developed by Moonshot AI that helps generate and improve software code automatically.
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Pooja Malik is a business journalist with over six years of experience covering startups, entrepreneurship, and emerging trends. She has previously worked with leading media platforms such as YourStory Media and BW BusinessWorld, where she reported on business, policy, and market developments. Currently, she serves as Editor at The Inspirepreneur Magazine, where she writes and edits stories across business, lifestyle, and travel, with a focus on clarity, accuracy, and reader relevance.
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