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Kimi K3 vs Fable 5: I Built the Same Website Twice

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743 views24likes15:35lukas-margerieOriginal Release: 2026-07-21

This video demonstrates a side-by-side comparison between Kimi K3 (a 2.8 trillion parameter open-source model) and Fable 5 (a closed-source model from Claude Code) by having both models build identical web projects from the same prompts. The comparison covers two real-world projects: a branded multi-step signup form and a scroll-triggered 3D globe website. The video shows how Kimi K3 can be set up using OpenCode with an API key, and how visual editing tools like MagicPath can be used to refine AI-generated designs. The demonstration reveals that while both models can generate functional code, they differ in design accuracy, feature implementation, and visual fidelity, with Fable 5 showing better alignment with reference designs in some cases.