5 Best Japanese Local LLM Model

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image 1 1 - 5 Best Japanese Local LLM Model

In the ever-evolving landscape of natural language processing, Language Model models (LLMs) have emerged as powerful tools for comprehending and generating human language. Specifically, the realm of Japanese language processing has witnessed the development of several notable LLMs, each with its own strengths and applications.

This article delves into a comprehensive evaluation of some of the leading Japanese LLM models, shedding light on their features, capabilities, and real-world potential. By providing a detailed exploration of these models, this article aims to equip readers with valuable insights into the diversity and nuances of Japanese LLMs, enabling them to make informed decisions when selecting the most suitable model for their linguistic endeavors.


Best Japanese LLM Model


image 1 1 - 5 Best Japanese Local LLM Model

The Japanese StableLM Instruct Alpha 7B is an advanced language model with a capacity of 7 billion parameters, designed to cater to a wide range of linguistic tasks. In the landscape of Japanese language models, it stands as a pinnacle of performance, having undergone rigorous benchmarking against several other Japanese models. Despite being termed as a “small” model within the context of parameter counts, its capabilities are far-reaching and versatile.

This model comes in two variations: the Japanese StableLM Base Alpha 7B, which will be available under the Apache License 2.0 for commercial purposes, and the Japanese StableLM Instruct Alpha 7B, tailored specifically for research applications and released exclusively for research-oriented use. The latter variation, aimed at advancing academic exploration and discovery, is particularly noteworthy for its potential to fuel innovation across a multitude of domains.

Whether the task is generating creative content, answering questions, facilitating conversations, or any other text-related endeavor, the Japanese StableLM Instruct Alpha 7B is poised to offer its impressive linguistic prowess. For those interested in delving into the specifics, the Hugging Face Hub page provides comprehensive details about its functionalities, opening doors to a world of possibilities within the realm of natural language processing.


The bilingual-gpt-neox-4b-instruction-sft is a significant addition to the landscape of Japanese LLM models. With its substantial parameter count of 3.8 billion, this English-Japanese bilingual model builds upon the foundation of rinna/bilingual-gpt-neox-4b. Its primary purpose revolves around instruction-following conversations, showcasing its adaptability for practical applications.

Derived from extensive fine-tuning efforts, this model offers a step forward in Japanese language processing. Its performance, although not revolutionary, does exhibit a discernible improvement compared to the previous Japanese GPT-NeoX 3.6B PPO, as indicated by evaluation experiments. This nuanced enhancement positions the bilingual-gpt-neox-4b-instruction-sft as a noteworthy contender among a variety of LLMs, poised to contribute to language-related tasks in the Japanese context.


The Japanese-MPT-7B language model is an autoregressive model that has been fine-tuned specifically for Japanese language processing. It is based on the MPT-7B checkpoint provided by MosaicML. The model’s training data comes from the Japanese subset of the mC4 dataset, a diverse and extensive collection of text from the web.

During fine-tuning, the model underwent 3000 training steps to adapt its parameters to the nuances of the Japanese language. This process involves adjusting the model’s internal weights to make it more proficient in generating coherent and contextually relevant Japanese text.

It’s worth noting that utilizing the Japanese-MPT-7B model may require substantial computational resources, particularly in terms of RAM. The estimated RAM requirement for loading this model is approximately 30GB, so users should ensure they have sufficient resources available.


The Llama-2-13b-hf-japanese model is a Japanese language model developed by HachiML. Despite limited available information, it is known to be a formidable model with a staggering parameter count of 13 billion. The scarcity of details from the author makes it challenging to provide comprehensive insights into its capabilities and performance. As of now, there is no extensive data available regarding its specific strengths, weaknesses, or applications. However, given its substantial parameter count, it can be assumed that Llama-2-13b-hf-japanese holds potential for generating highly nuanced and contextually accurate Japanese language text. Its true impact and capabilities await further exploration and analysis within the natural language processing community.


The Yoko-7B-Japanese-v1 LLM model is trained with the extensive guanaco dataset, leveraging a substantial volume of data comprising 49,000 chat samples and 280,000 non-chat samples. Its unique edge lies in enhancing performance for both Chinese and Japanese languages. By utilizing the QLoRA technique, this model refines the foundational LLaMA2-7B.

The recommended generation parameters encompass a temperature range of 0.5 to 0.7, a top-p value of 0.65 to 1.0, a top-k value ranging between 30 and 50, and a repeat penalty set between 1.03 and 1.17. Notably, Yoko-7B-Japanese-v1 is developed in collaboration with Yokohama National University Mori Lab. While it is one among various LLM models, its strategic dataset utilization and language-focused improvements position it as a valuable tool for nuanced language generation tasks.

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