PLaMo 3.0 Prime
Preferred Networks flagship Japanese LLM with reasoning support and a 256K context window.
Specs
- Context
- 262.1K
- Max output
- 20.5K
- Input price
- JPY 60/ 1M tokens
- Output price
- JPY 250/ 1M tokens
- Released
- 2026-06-22
Context
- Context window
- 262.1K
- Max input
- —
- Max output
- 20.5K
Pricing · JPY / 1M tokens
- Input
- JPY 60
- Output
- JPY 250
- Cache read
- —
- Cache write
- —
Modalities
- Input
- Text
- Output
- Text
API
- API types
Reasoning
- Reasoning
- Yes
- Levels
Info
- Status
- Active
- Released
- 2026-06-22
- Knowledge cutoff
- —
Features
- Confirmed
How to call
1 provider
pfnmodel = plamo-3.0-primereasoning = reasoning_effort
chat
POSThttps://api.platform.preferredai.jp/v1/chat/completions
JSON
Standard format
{
"id": "plamo-3.0-prime",
"object": "model",
"created": 1782086400,
"owned_by": "pfn",
"name": "PLaMo 3.0 Prime",
"api": {
"types": [
"chat"
]
},
"limits": {
"context": 262144,
"input": null,
"output": 20480
},
"modalities": {
"input": [
"text"
],
"output": [
"text"
]
},
"reasoning": {
"supported": true,
"efforts": [
"none",
"medium"
]
},
"pricing": {
"currency": "JPY",
"unit": "1M_tokens",
"input": 60,
"output": 250,
"cache_read": null,
"cache_write": null
},
"features": [
"tools",
"structured_output",
"streaming"
],
"info": {
"status": "active",
"release_date": "2026-06-22",
"knowledge_cutoff": null,
"description": "Preferred Networks flagship Japanese LLM with reasoning support and a 256K context window.",
"docs": "https://docs.plamo.preferredai.jp/en/api",
"verified_at": "2026-10-11"
}
}Official sources
3