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Fugaku-LLM

13B Japanese LLM trained from scratch on the Fugaku supercomputer.

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About

Fugaku-LLM was released on May 10, 2024, by a Japanese research consortium led by Tokyo Institute of Technology, RIKEN, Fujitsu, Tohoku University, Nagoya University, CyberAgent, and Kotoba Technologies. It is a 13-billion-parameter model trained on 380 billion tokens using 13,824 nodes of the Fugaku supercomputer, notable because Fugaku runs on Arm-based CPUs rather than GPUs, requiring the team to port Megatron-DeepSpeed to the machine.

Trained from scratch on proprietary Japanese data from CyberAgent plus English data, it scored 5.5 on Japanese MT-Bench, the highest among open models trained on Japan-produced data, with 9.18 on humanities and social sciences tasks. Source code is on GitHub and weights on Hugging Face, usable for research and commercial purposes under the project's license.

Specs

Context window

Pricing

Free quota

API access

Weights

Open weights

Released

May 10, 2024

Benchmarks

Provider-reported unless a source says otherwise. Benchmarks are marketing-adjacent by nature — treat them as directional.

Use cases

japanese-nlpsovereign-airesearch

Trust score — 6/10

/10 trustMetrics-checked

Scored 6/10 (metrics tier, metrics-v1). Evidence: Verified via vendor site/docs/GitHub and reputable coverage, wave 75; Trending score 62/100 from researcher assessment.

Sources