Summary of Key Points
Zuoyebang was once a “super learning tool” for post-2000s students, dominating the industry with its photo-based question-searching technology and extensive question bank, reaching a valuation of over $11 billion at its peak. However, the 2021 “Double Reduction” policy cut off the profit streams from subject-based tutoring services. Zuoyebang then turned to learning devices and overseas markets for growth but faced challenges such as functional controversies and reliance on a single market. Today, general AI tools like Doubao Aixue are competing with Zuoyebang by providing step-by-step problem-solving explanations and interactive Q&A features. Although Zuoyebang has tried to integrate AI, the results have been limited, and it continues to struggle with content review issues and delays in going public. As a result, it has gradually lost its status as the top choice for students, becoming a reminder of the “tears of that era” in the memories of the post-2000s generation.
I. How It Became So Popular
Zuoyebang’s success was largely due to meeting the immediate need of students to quickly find answers after the widespread adoption of smartphones:
- Strong Technical Foundation: The founding team came from Baidu and specialized in OCR (Optical Character Recognition) and search algorithms. Photo-based question searching may seem simple, but it actually involves three steps: identifying the question, finding similar questions in the database, and providing the answer. To speed up this process, the founders invested millions to reduce the response time from 8 seconds to 2 seconds, significantly improving user experience.
- Large Question Bank: They employed a crowdsourcing approach, hiring nearly 20,000 teachers to build the question bank, and utilized Baidu Zhidao’s data over several years to accumulate more than 100 million questions. Even if students only took a photo of a part of a question, they could find the entire test paper, with suggestions for the next question appearing in advance—this is the power of a large question bank.
- Social Elements: Initially, there was a “Classmate Circle” feature that served as an online social space for post-200s students before WeChat became popular. Students could choose nicknames, form groups, write fanfiction about TFBOYS, and develop creative skills while making friends. However, this aspect was later discontinued due to content restrictions.
- Capital Support: From 2015 to 2020, Zuoyebang raised over $3.4 billion in funding from investors like SoftBank and Sequoia Capital. This capital helped the company expand from a mere tool to a comprehensive service offering including courses and hardware. The surge in online education demand during the pandemic pushed it to new heights.
II. Finding New Paths After the “Double Reduction” Policy
With the implementation of the 2021 policy, Zuoyebang had to adapt:
- Focusing on Learning Devices: In 2022, they launched the “Clever Learning” system, releasing various learning devices and pens. Their learning device sold the best during the 618 shopping festival, but there were issues: parents reported that the promised “accurate grading” and “synchronized courses” did not meet expectations, and users were often prompted to purchase additional expensive courses.
- Entering Overseas Markets: In 2023, they launched Question.AI in the US, achieving over a million daily active users within six months. However, 97% of revenue came from this single market, posing significant risks. They also faced competition from established platforms like Photomath and ByteDance’s Gauth.
- Content Review Issues: In 2025, a controversial physics question about a student jumping from a building appeared in the question bank, leading to public outrage. Zuoyebang used UGC (User-Generated Content) and AI to expand its question bank at low cost but failed to properly review the content, which is a critical issue for products targeting minors.
- Delayed IPO: Their application for an IPO in the US in 2024 has not been approved, indicating that they have yet to present a compelling new business model that would convince investors.
III. The Arrival of AI
In the era of large models, students no longer just want similar questions; they need help with understanding problem-solving processes and detailed explanations—these are precisely what AI offers:
- New Competitors Changing the Game: AI tools like Doubao Aixue and ChatGPT can provide step-by-step guidance and allow users to ask follow-up questions. For example, an AI can explain a math problem in multiple ways and even relate it to similar types of problems, offering a more advanced experience than Zuoyebang’s question bank-based approach.
- Zuoyebang’s Slow Response: While Zuoyebang has also integrated its own large model and DeepSeek, their efforts are limited to enhancing existing products. New competitors, leveraging general AI and their existing user bases, have seamlessly combined problem-solving, explanation, and resource collection into a single product, attracting new users more effectively.
- Ethical Challenges with AI: In 2026, Zuoyebang used AI-generated images of famous hosts for promotional purposes, which led to criticism. This incident highlights the need for caution when using technology in education.
IV. Can Zuoyebang Return to Its Former Glory?
Zuoyebang still has a large user base and significant revenue, and it is working to integrate hardware and AI. However, it is unlikely to return to its former dominance:
- Lost Status as the Primary Answer Source: Students now prefer AI tools like Doubao and DeepSeek.
- Continuing Transformation Challenges: Despite selling learning devices, Zuoyebang has a poor reputation. The integration of AI has been ineffective, and overseas markets remain risky due to competition. They are still searching for a clear new business strategy while facing numerous challenges from competitors.
- Memories of the Past: On social media, post-200s users refer to Zuoyebang as a symbol of the past, but what they really miss is the era when it helped them with homework and provided a place to make friends.
Zuoyebang’s story reflects the evolution of the online education industry from rapid growth to policy regulation and then to disruption by AI. It once seized an opportunity, but to reclaim its former prominence, it must overcome multiple challenges in technology, content, and business strategy.