A Japanese-specialized large language model developed by NII. It is a high-performance model optimized for Japanese language processing.
Parameters
Undisclosed
Context Window
License
Proprietary
Release Date
2026-03-15
Japanese Language Capability
🇯🇵Native JP
Model developed by a Japanese company or specialized for Japanese. Highest Japanese understanding and generation capability.
API Pricing
API pricing for this model is not yet available
Strengths
- •Versatile base model for further Japanese fine-tuning
- •Learns a broad representation of Japanese language
- •Foundation for building specialized downstream models
Weaknesses
- •Not instruction-tuned; requires prompting expertise for use
- •May generate unsafe or unfiltered content without alignment
- •Performance depends heavily on the quality of fine-tuning data
Use Cases
- •Serving as a pre-trained backbone for custom Japanese projects
- •Academic research on Japanese language model internals
- •Text generation and completion tasks requiring Japanese fluency