-Blocks, a B2B solution chosen by over 50 companies including Daiso, Hite Jinro, and Brandy
– 'Hyper-personalized' CRM marketing tailored to message content, sending time, and channel
-Introduction within a week without a data analysis team, high efficiency achieved with just one marketer
-Leave data to AI and focus on strategy… Presenting a new way of marketing
-Global expansion and industry diversification… BEP achievement goal this year
Since Google stopped supporting third-party cookies (user website usage behavior data collected by third parties other than the website owner) in 2024, 'CRM marketing (customer relationship management)' that collects and utilizes first-party data (primary data) on its own has been gaining attention. There is a startup that is quickly moving ahead in this trend. It is 'Z.ai', which operates 'Blux', an AI-based hyper-personalized CRM marketing solution.
From traditional large corporations like Daiso and Hite Jinro to trendy startups like Brandy and Daily Shot, various companies regardless of industry and organizational size have begun to adopt Blocks. In April, he participated as a speaker at the 'Digital Marketing Summit 2025 (DMS 2025)' and shared customer-centered CRM marketing strategies, drawing attention from the industry.
Smartly leverage first-party data with AI personalization technology
The key to CRM marketing is to make good use of first-party data. However, most companies have their own data but are not able to use it effectively.
CEO Lee Ji-hyeok analyzed IR data from various companies while working as a venture capital intern and discovered market opportunities. “When looking at IR data from commerce companies, they always had a goal of ‘introducing personalized recommendation technology,’ but there was no specific implementation strategy. I felt that there was clearly a demand, but the market had not yet come up with an answer on how to do it.” For Jet AI, which has strengths in artificial intelligence (AI) technology, personalized technology was an area of opportunity.
Jet AI took its first step in 2022 with a personalized product recommendation solution, and in 2023, it introduced ‘Blocks Message’, which applied this technology to CRM marketing. Currently, more than 50 companies are using it.
“ 100,000 messages to 100,000 people” ‘hyper-personalized’ marketing that speaks differently to each customer
'Blocks Message' supports 'hyper-personalized' CRM marketing that matches all conditions, such as the content of the marketing message, the sending channel, and the sending time, to each individual consumer. While traditional personalization approaches specific groups of consumers, such as gender, age, and income level, 'hyper-personalization' means that each consumer is treated differently. For example, if there are 100,000 users of a commerce app, 100,000 different marketing phrases are sent.
The reason why ‘hyper-personalization’ is possible is thanks to AI technology. The representative explained, “Even if there are only 100,000 users, it is physically impossible for people to do personalized marketing. However, by utilizing AI, we can send different offers to each of the 100,000 users.”
These hyper-personalized marketing messages make each customer feel “respected”, which leads to higher customer satisfaction and higher conversion rates. Blocks’ clients are seeing an average of 2-3x improvement in key metrics such as click-through rate, conversion rate, and return on ad spend (ROAS).
“ Unrefined data is also OK” A great response from traditional companies and startups
Blocks has an AI-based structure that can automatically analyze data without data purification. This makes it fast to adopt. The representative explained, “Normally, it takes an average of 2 to 4 weeks to design data taxonomy (classify and structure data), but we can analyze data that has not been purified with AI.” Data is linked within a week, allowing for fast and easy use of the service.
From traditional large corporations seeking digital transformation to startups looking to experiment quickly, a wide range of customers are adopting the system, focusing on its efficiency. Customers include Daiso, Homeplus, Hite Jinro, and Nongshim.
“Large-scale traditional companies find it burdensome to hire all new internal staff and want to achieve digital transformation effects at once with external solutions. Blocks can achieve digital transformation with a minimum number of people.”
High performance possible with just one marketer, changing the way you work
The effect of 'Blocks' does not end with simply improving indicators. The representative explained the goal as, "We dream of a future where people do not have to look at data." "If people directly interpret data, no matter how excellent their capabilities are, their approach is limited to two or three dimensions. On the other hand, AI basically considers units of several thousand dimensions in data analysis. Since AI was originally created to process, handle, and interpret data, AI is bound to be the best at data analysis."
If the existing marketing work method required marketers, data analysis teams, and developers to link data to collaborate, Blocks allows marketers to operate the entire marketing process using AI alone. Data analysis can be left to AI, and marketers can focus on macro strategies and creatives.
It is also much more efficient because the communication costs that occur when multiple people collaborate are eliminated. In fact, Jet AI is also leading rapid growth with a team of about 20 people.
Accelerate growth through global expansion and domain expansion
Jet AI is preparing to enter the global market with its CRM marketing solution, Blocks Message. As it has proven its differentiation by competing with global companies such as Salesforce and Braze in the domestic market, it is judged that it has sufficient potential in the global market as well.
The first target is Japan. The representative said, “In Japan, there are many traditional companies that have not yet undergone digital transformation, and it is even more difficult to find developers or data teams. Blocks’ value proposition of supporting rapid digital transformation with a minimum number of people will be of great benefit to Japanese companies as well.”
The most important thing to consider when entering the global market is understanding cultural sensitivity. No matter how precisely the message text is aimed at the individual tastes of consumers, if the channel through which the message is delivered ‘invades personal space,’ it can actually cause resentment. “We are trying to find an appropriate entry point so that we can provide personalized respect without invading personal space,” said CEO Lee.
The industry group is also expanding beyond commerce. In particular, it is looking at areas where personalized experiences can be provided in more dimensions, such as finance, games, and travel. Jet AI, which has been growing rapidly, increasing its customer base from 20 to 50 in just six months, is aiming to achieve BEP (break-even point) in sales this year.
Although there are several constructive goals at hand, the CEO emphasized that he will focus on the most essential thing: “solving business problems with technology and delivering value to customers.”
Behind Blocks’ differentiated technological prowess lies Jet AI’s ‘growth potential’ that is being honed until an excellent solution is completed. Jet AI’s next steps to pioneer the future of marketing in the AI era are drawing attention.
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