Daily Japan updates
AI moves from the chat window into shoes, files and legacy systems
Two product announcements show companies targeting AI at practical gaps in Japanese retail and office workflows, from choosing a shoe size to working across local documents and older web systems.
Developments
Two newly announced products illustrate where companies see the next practical opening for AI in Japan. Instead of another general chat interface, one targets the stubborn problem of matching feet to individual shoe models, while the other tries to connect an AI assistant with files and web systems already used at work.
1. Perfitt brings AI shoe sizing into Japan’s retail stack
Arte says domestic sales of Perfitt began on September 18, with applications open to shoe brands, ecommerce operators, retailers and event organizers. Developed by South Korea-based Perfitt, Inc., the service combines measurements of a customer’s feet with data about the inside dimensions and construction of particular shoes. Its Japanese offering covers both an ecommerce tool that recommends a size from a smartphone measurement and an on-site version for stores and events.
The announcement matters less as a claim that sizing has been solved than as an example of AI being inserted into a narrow commercial decision with visible costs: uncertainty before purchase, avoidable returns and staff time spent narrowing down options. Retailers considering it would still need to test recommendation quality on their own inventory and customers rather than relying on the vendor’s overseas performance claims. (Read the announcement)
2. Kari puts file work and browser automation on the desktop
GotoAI announced Kari for formal release on September 21. The company describes it as a desktop assistant for Windows, macOS and Linux that can work with locally stored documents, prepare drafts and analyses, and operate a built-in browser when a web system has no API or MCP connection. It is also designed to connect to supported Claude or ChatGPT subscriptions, avoiding a separate API usage contract for those routes.
The announced community license is free for individuals and organizations with fewer than 100 people, while larger organizations can evaluate it for up to 60 days. That positioning highlights a growing business opportunity around the connective tissue of AI adoption: moving information between existing files, subscription services and older web interfaces. Organizations should nevertheless verify security, data handling, service terms and actual compatibility before using the tool with sensitive work. (Read the announcement)
What these launches suggest
Both products are attempts to make AI useful at a specific point of friction rather than asking users to redesign an entire workflow. For businesses evaluating them, the decisive evidence will come after launch: measured fit accuracy and return outcomes for Perfitt, and reliable, governable execution across real files and systems for Kari. The announcements identify promising use cases, but operational testing will determine whether either product becomes durable infrastructure.