Sources and memos: Tencent employees used Claude Code to assist them with evaluating and fine-tuning the company's new Hy3 model to improve its performance (Juro Osawa/The Information)

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- Tencent used Anthropic’s Claude Code to evaluate and fine‑tune its Hy3 model, internal memos reveal.
- Claude Code—Anthropic’s code‑generation model—served as a diagnostic and optimization assistant for Hy3, enabling parallel testing of parameters.
- Hy3 has earned positive reviews from developers, who note speed and accuracy improvements after the Claude‑Code‑aided fine‑tuning.
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