What is the Cursor Composer 2 Kimi K2.5 controversy?

Cursor launched Composer 2 claiming heavy custom compute. Devs found it uses Moonshot's Chinese Kimi K2.5 model via API string. Sparks debate on transparency.

Is Cursor Composer 2 worth using despite Kimi?

Cheap and fast for simple tasks. But benchmarks padded—stick to hybrids with Claude for complex code.

Will Cursor get sued over this?

Unlikely short-term, but erodes trust. Echoes Copilot scrapes—watch for open-source backlash.

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Cursor Composer 2's Hidden Chinese Brain: Kimi K2.5 Blows the Lid Off

Cursor promised a beast of a coding tool with Composer 2. Three days later, a sneaky API string revealed it's powered by Moonshot's Kimi K2.5. Hype meets reality—hard.

DevTools Feed Apr 04, 2026 3 min read

Cursor Composer 2 dashboard exposing Kimi K2.5 API config string

⚡ Key Takeaways

Cursor Composer 2 relies heavily on Moonshot's Chinese Kimi K2.5 model, undermining '75% our compute' claims. 𝕏
Benchmarks like CursorBench inflate scores; real gaps vs. Claude are tiny. 𝕏
Transparency fail erodes dev trust—expect Kimi forks to steal thunder. 𝕏

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Originally reported by dev.to

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