Japanese LLM

ELYZA

Japan's Japanese-first LLM — from U Tokyo's Matsuo Lab, backed by KDDI

KARAKURI (カラクリ)

Japanese customer-support AI with a 95%-accuracy guarantee

PLaMo (Preferred Networks)

PFN's from-scratch Japanese LLM, now in Japan's government AI stack

SB Intuitions (SoftBank AI)

Japan's sovereign AI lab: SoftBank's LLM arm building Sarashina

Shisa.ai

Three-person Tokyo lab, open Japanese LLMs beating far bigger models

Stockmark

Tokyo's low-hallucination LLM shop, used by 30% of Nikkei 225