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Zheng Hui

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AI agent engineer at a Hangzhou enterprise software company, building LLM-powered workflow automation with tool-use and memory. Designed the multi-agent orchestration layer that reduced manual data-entry work by 70%.

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Articles by Zheng Hui(1)

Fine-tuning vs RAG: when each approach makes sense

Fine-tuning and retrieval-augmented generation solve different problems, and choosing the wrong one wastes months of engineering effort. This article breaks down the decision criteria, hidden costs, and practical scenarios where each approach wins — and where combining them is the right answer.

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16 July 2026

Zheng Hui — ANN Tech — ANN Tech