A build log for plastic model kits, with AI built in.
SHIRAKABA, LLC is a Tokyo startup founded in February 2025. Our app, modelog, lets builders record each kit from the opened box to the finished model. It is currently in development for iOS.
AI features
modelog's AI features run on Anthropic's Claude.
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Kit registration from a box photo
modelog reads the maker, product name, and scale from a photo of the kit box. The builder confirms the result before it is saved to our kit catalog.
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Advice from test-fit photos
Builders photograph a test-fitted kit. modelog suggests where to scribe panel lines and how to approach painting that kit.
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NEMO, the in-app guide
NEMO answers questions while you build. The app always labels NEMO's replies as AI.
Company information
- Legal name
- 合同会社シラカバSHIRAKABA, LLC (godo kaisha, a Japanese limited liability company)
- Incorporated
- February 4, 2025
- Representative
- Tomo Tsubota (坪田 朋), Founder & CEO
- Corporate Number
- 6011003020945Assigned by the National Tax Agency of Japan on February 5, 2025, the day after incorporation. The record lists the company as 合同会社シラカバ. View the record (in Japanese)
- D-U-N-S Number
- 739960224
- Location
- Meguro, Tokyo, Japan
- Contact
- info@s-kaba.com
Founder
Tomo is a product designer and product leader with more than 20 years in consumer internet services in Japan. He has led design and product for blogging, mobile games, and consumer apps. He also works as chief product officer at a consumer app company in Japan.
He founded SHIRAKABA in 2025 to build consumer products with AI at the core. modelog is the company's first product.