Sakana AI
A company building frontier AI in Japan, offering AI chat and English-Japanese translation and proofreading tools.
About Sakana AI
Sakana AI is a company building frontier artificial intelligence in Japan; the website footer reads “Tokyo, Japan © 2026 Sakana AI 株式会社”. Its products include the AI chat service Sakana Chat and language tool Sakana Translate: the chat page uses “One question to start the day” as its prompt, names its assistant Namazu, and warns that generated content may be inaccurate or contain errors; the translation tool offers English and Japanese options for translating and proofreading entered text, with the input counter showing 0/2,000 characters in real time. The website also has an inquiry entry point for businesses.
Best for
Best use cases
Open Sakana Chat and ask assistant Namazu a question
Paste text into Sakana Translate and click Translate
Use Proofread to check the entered text
Business users consult through the Enterprise inquiries entry point
Features
AI chat
Chat with assistant Namazu through the Sakana Chat website, starting the day with “One question to start the day”.
English-Japanese translation
In Sakana Translate, enter text, choose English or Japanese, then click Translate to translate it.
Text proofreading
The translation page provides a Proofread button for proofreading entered text.
Character count
An input counter shows 0/2,000 in real time, making the remaining input capacity easy to track.
Pros
- Offers AI chat plus English-Japanese translation and proofreading
- Translation input shows a live character count (0/2,000)
- Provides a dedicated enterprise inquiry entry point
Cons
- Official notice says generated content may be inaccurate or contain errors
- Sakana Translate input is limited to 2,000 characters