Alex RuiezExpert
How to Access Hy4 Preview on CodeBuddy
Want to try the new Hy4 Preview model without paying? It just landed on CodeBuddy Global and it's free to use.
Benchmark scores jump well past Hy3, especially on Terminal Bench 2.1, SWE Atlas Refactoring, and Toolathlon-Verified. The model competes with frontier names like Claude Opus 5, GPT 5.6 Sol, and GLM 5.3.
Tutorial
- Open the CodeBuddy Global extension or web app.
- Open the model selector dropdown.
- Select Hy4 preview.
- Start coding and feel the new performance.
Wrapping Up
You're now on the latest Hy4 Preview at zero cost. The gains over Hy3 are real, especially for refactoring and complex agentic tasks. Give it a run while the free tier is still live.
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