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Zhihu Tech Column
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Zhihu Tech Column

Sharing Zhihu tech posts and exploring community technology innovations.

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Latest from Zhihu Tech Column

22 recent articles
Zhihu Tech Column
Zhihu Tech Column
Aug 27, 2026 · Mobile Development

ZSpec at Zhihu: One-Person Multi-Platform Development with AI Agents

Zhihu's ZSpec workflow enables one developer to manage iOS, Android, and Harmony development by unifying requirements in a Group while isolating platform-specific facts in Units, using AI Agents with scoped skills for code investigation, implementation, and automated on-device verification, reducing redundant context switching and rework.

AI-assisted developmentAgent-device verificationGroup/Unit model
0 likes · 43 min read
ZSpec at Zhihu: One-Person Multi-Platform Development with AI Agents
Zhihu Tech Column
Zhihu Tech Column
Aug 4, 2026 · Artificial Intelligence

From OnCall to Work Automation: How We Evolved AI from Answering Questions to Continuously Solving Problems

The article recounts how a simple OnCall assistant was transformed into a full‑stack AI‑driven work‑automation platform, detailing three cognitive shifts—from answering to solving to self‑improving—while describing the Harness engineering framework, real‑world case studies, success metrics, and lessons for building reliable AI agents.

AI AgentAI OperationsHarness
0 likes · 25 min read
From OnCall to Work Automation: How We Evolved AI from Answering Questions to Continuously Solving Problems
Zhihu Tech Column
Zhihu Tech Column
Jun 8, 2026 · Industry Insights

Unifying Global User Portrait Data to Power Business Growth

The project consolidates fragmented user data across departments into a unified OneID system, builds a comprehensive tagging and feature platform, and leverages real‑time and offline signals for algorithmic push, custom models, and crowd selection, enabling precise, data‑driven growth initiatives.

ID mappingdata integrationfeature engineering
0 likes · 21 min read
Unifying Global User Portrait Data to Power Business Growth
Zhihu Tech Column
Zhihu Tech Column
Jan 20, 2026 · Artificial Intelligence

How AI‑Powered Agentic Workflows Cut Costs and Boosted R&D Efficiency by Over 30% – A Real‑World Case Study

This article details a multi‑year, data‑driven transformation in which a product‑research team leveraged large‑model AI and agentic workflows to automate repetitive coding, streamline hot‑topic discussion creation, and replace a seven‑person outsourcing crew, achieving up to 38.6% project‑time reduction, a 22.5‑25 PD weekly capacity gain, and a dramatic drop in marginal costs.

AIAgentic workflowEfficiency
0 likes · 29 min read
How AI‑Powered Agentic Workflows Cut Costs and Boosted R&D Efficiency by Over 30% – A Real‑World Case Study
Zhihu Tech Column
Zhihu Tech Column
Jan 16, 2026 · Mobile Development

How a Custom C++ Native Rendering Engine Boosted Reading‑App Performance by Over 2%

The article details the design of a cross‑platform C++ rendering engine built for a mobile reading app, explaining its three‑layer architecture, file‑format support, layout and caching mechanisms, security features, and how these technical choices delivered measurable improvements in page views, reading time, and conversion rates.

C++Cross-platformSkia
0 likes · 35 min read
How a Custom C++ Native Rendering Engine Boosted Reading‑App Performance by Over 2%
Zhihu Tech Column
Zhihu Tech Column
Nov 4, 2025 · Artificial Intelligence

How Multimodal Large Models Transform Recommendation Systems: From Tags to Embeddings

This article explores how multimodal large models like Qwen2.5‑VL enable high‑dimensional tag generation and universal embeddings for recommendation systems, detailing data synthesis, model training, quantization, fine‑tuning, and the resulting improvements in click‑through rate and exposure interaction.

EmbeddingLarge Language Modelscontent tagging
0 likes · 17 min read
How Multimodal Large Models Transform Recommendation Systems: From Tags to Embeddings
Zhihu Tech Column
Zhihu Tech Column
Sep 23, 2025 · Backend Development

Build a High‑Performance AI Chatbot with FUST Microservices and DeepSeek

This tutorial walks through using Zhihu's open‑source FUST microservice framework together with DeepSeek's language model API to design, implement, and deploy a scalable, high‑performance intelligent Q&A system, covering architecture, data models, service layers, and deployment scripts.

AI chatbotDeepSeekFUST
0 likes · 16 min read
Build a High‑Performance AI Chatbot with FUST Microservices and DeepSeek