Zhihu tech stack
Zhihu builds mostly with Python, C++, Java, SQL. Its stack also includes PyTorch, TensorFlow, Spark, Dify. Python is named in 11 of the 15 job postings Zhihu published in the last 12 months (73%). Counted by Alion from the job postings of Zhihu, updated Oct 19, 2026.
What programming languages does Zhihu use?
Python is named in 73% of job postings at Zhihu, followed by C++ (40%), Java (27%), SQL (27%).
What frameworks and libraries does Zhihu use?
PyTorch is named in 27% of job postings at Zhihu, followed by TensorFlow (27%), LangChain (20%), LangGraph (20%).
PyTorch
4 27%
TensorFlow
4 27%
LangChain
3 20%
LangGraph
3 20%
PyTorch C++
3 20%
TensorFlow C++
3 20%
Transformers
2 13%
CrewAI
1 7%
Show all (15)
What databases does Zhihu use?
MySQL is named in 7% of job postings at Zhihu, followed by Redis (7%).
What cloud and platforms does Zhihu use?
Spark is named in 20% of job postings at Zhihu, followed by Dify (7%), Linux (7%), vLLM (7%).
What developer tools does Zhihu use?
Cursor is named in 13% of job postings at Zhihu, followed by Model Context Protocol (13%), OpenAI Codex (13%), Claude Code (7%).
Cursor
2 13%
Model Context Protocol
2 13%
Claude Code
1 7%
Git
1 7%
ONNX
1 7%
TensorRT
1 7%
bandit
1 7%
What AI and ML technologies does Zhihu use?
LLM is named in 60% of job postings at Zhihu, followed by VLM (20%), ChatGPT (7%), Claude (7%).
Which engineering practices does Zhihu ask for?
RLHF is named in 40% of job postings at Zhihu, followed by SFT (40%), AI Agents (13%), Function Calling (13%).
RLHF
6 40%
AI Agents
2 13%
Function Calling
2 13%
Prompt Engineering
2 13%
Multimodal AI
1 7%
Show all (11)
What does each Zhihu team work with?
The technologies each team's postings require most often, with the number of postings that require them.
AI/ML
6 postingsHow does your stack fit Zhihu?
How is the Zhihu stack changing?
Read from the dates of the postings themselves: a technology is new when the first posting that names it appeared in the last six months, rising or falling when its share of postings moved between the last two quarters.
How modern is the Zhihu stack?
Zhihu scores 89 out of 100 (Cutting-edge). The score averages how current each technology in the stack is and adds weight for AI adoption. AI technologies in the stack: 8; legacy ones: 0.
How common is the Zhihu stack in its industry?
Share of the 631 companies in the same industries, whose stack Alion knows, that use each technology.
What sets Zhihu apart
Companies with a stack like Zhihu
Questions about the Zhihu tech stack
What programming languages does Zhihu use?
The languages named in Zhihu job postings are Python (73%), C++ (40%), Java (27%), SQL (27%), Rust (7%), as a share of the 15 postings of the last 12 months.
Does Zhihu use PyTorch?
Yes. PyTorch is named in 4 of 15 job postings (27%) and required in 4 of them.
What cloud and platforms does Zhihu use?
The cloud and platforms named in Zhihu job postings are Spark (3), Dify (1), Linux (1) (postings in brackets).
What skills do you need for a AI/ML job at Zhihu?
AI/ML postings at Zhihu most often require Python (6), C++ (4), Java (3), PyTorch (3), out of 6 postings in the last 12 months.
Is the Zhihu tech stack changing?
Yes. Prompt Engineering, LangChain, LangGraph, AI Agents first appeared in Zhihu job postings in the last six months.
How modern is the Zhihu tech stack?
Zhihu scores 89 out of 100 (Cutting-edge). The score averages how current each technology in the stack is and adds weight for AI adoption. AI technologies in the stack: 8; legacy ones: 0.
How does Alion know the Zhihu tech stack?
Alion reads every job posting Zhihu publishes and tags the technologies each one names. The figures on this page count the 15 postings of the last 12 months and were updated on Oct 19, 2026.
Method and citation
Alion reads every job posting the company publishes and tags the technologies each one names. Shares count the postings of the last 12 months, open and closed; the company's own products are counted apart. How we count
Alion, "Zhihu tech stack: 54 technologies from 15 job postings", as of Oct 19, 2026. https://alion.io/company/zhihu/technologies