https://www.kimi.com/blog/kimi-k2-6

Moonshot is explicit in the release notes, K2.6 writes fragment shaders, vertex shaders, SDFs, raymarching in GLSL and WGSL directly. Builds Three.js scenes with React Three Fiber, real geometry, PBR materials.

Other coding models produce shader code if you push them. The difference here is K2.6 ships it as an explicit trained-for capability.

Demos are curated though. Two questions for anyone who has tried it.

Does the shader code run in browser without hand fixing uniforms and precision qualifiers.

Is Three.js output actually usable geometry and lighting or placeholder scenes dressed up for a demo.