tools
PLaMo
PLaMo is a Japanese language model platform offering API access and browser chat for text generation, reasoning, translation, and analysis.

PLaMo provides an OpenAI-compatible API for chat completions, tokenization, model listing, and system integration. It also offers PLaMo Chat, a browser-based interface for interacting with the model.
The current model is PLaMo 3.0 Prime, with reasoning, a context length of up to 256k tokens, and tool-use capabilities. API access is usage-based; the Free plan is listed as being under preparation, while Provider and on-premise arrangements use custom terms.
Features
- OpenAI-compatible Chat Completions API
- Browser-based PLaMo Chat interface
- PLaMo 3.0 Prime with reasoning support
- Context length of up to 256k tokens
- Tokenize API for counting and converting text into tokens
- Models API for listing and retrieving model details
- Tool-use capabilities for agent backends
- On-premise deployment options, including Docker and cloud marketplaces
Use cases
- Generate Japanese text, summaries, translations, and analyses
- Integrate chat completion into business software through an API
- Build agents that call external tools
- Test Japanese-language conversations in a browser
- Deploy models in private networks, VPCs, or edge environments
Pros
Cons
Pricing
- Starting price
- Free
- Pricing checked
- 2026-09-19
Free
Input 0円; Output 0円
- PLaMo 3.0 Prime per 1M tokens
- Currently under preparation
Standard
Input 60円; Output 250円
- PLaMo 3.0 Prime per 1M tokens
- Usage-based billing with no usage limit
- Input/output pricing shown for up to 128k tokens
Provider
Input Custom; Output Custom
- For generative AI service providers
- Individual quotes based on use case and scale
- Flexible rate limits and dedicated support