Robots Atlas>ROBOTS ATLAS

Sakana AI

ACTIVE
AI LabStartup
Sakana

Tokyo-based AI research lab developing nature-inspired foundation models and evolutionary methods for combining and training AI systems.

Founded2023Japan
HQTokyoJapan
Total funding$265000B3 · 2024–2025
Valuation~$2.6B (¥400B)🦄post-money · 2025
01 · About

Sakana AI

Founded 2023 · Tokyo, Japan

Sakana AI is a Tokyo-based artificial intelligence research lab and startup founded in 2023 by former Google researchers David Ha and Llion Jones (a co-author of the original Transformer paper), together with Ren Ito (former Japanese diplomat). The company's name derives from the Japanese word for 'fish' (魚), reflecting its nature-inspired approach to AI: using collective intelligence and evolutionary principles rather than building ever-larger monolithic models. Sakana AI focuses on developing foundation models and methods including evolutionary model merging, the AI Scientist framework for autonomous research, and Transformer² self-adaptive LLMs. The company became Japan's fastest unicorn in September 2024 after a Series A round led by NEA.

  • David Ha

  • Llion Jones

  • Ren Ito

02 · What they do

Domain of activity

2 areas · 3 technologies · 1 industries
What they do2Areas
  • Language models
  • Agent systems
How they do it3Technologies
  • LLM
  • Foundation Models
  • Generative AI
Who for1Industries
  • Research & science
03 · Geography

Global presence

HQ Tokyo · 1 offices · 2 regions
AsiaGlobal
04 · Metrics

Scale & funding

founded 2023 · Series B
2023founded
~20 (2024)employees
$265Mtotal funding
Series Blatest round
growthdevelopment stage
Privatenot listed
activestatus
$265M
total funding
3 · 2024–2025
SeedJanuary 2024Lux Capital, Khosla VenturesSeed round announced January 2024.
$30M
Series ASeptember 2024New Enterprise AssociatesSeries A round, valuing the company at over $1.1B (unicorn status).
$100M+
Series BNovember 2025Mitsubishi UFJ Financial Group (MUFG), Lux Capital, In-Q-TelSeries B round announced in November 2025; valuation raised to about ¥400B (~$2.6B).
¥20B (~$135M)
05 · Portfolio

Products & solutions

2 ai systems
07 · Classification

Profile & metadata

4 classification · 7 external links

Classification

  • Statusactive
  • Development stagegrowth
  • Listed onNoprivate
  • Organization typeAI Lab+ Startup
08 · Related content

Articles

1 articles