Solar Pro 2
High-performance Solar model (31B parameters) supporting both chat and reasoning modes; fully deprecated on 2026-10-30 (KST), migrate to Solar Pro 4.
Specs
- Context
- 65.5K
- Max output
- —
- Input price
- $0.15/ 1M tokens
- Output price
- $0.6/ 1M tokens
- Released
- 2025-12-15
Context
- Context window
- 65.5K
- Max input
- —
- Max output
- —
Pricing · USD / 1M tokens
- Input
- $0.15
- Output
- $0.6
- Cache read
- $0.015
- Cache write
- —
Modalities
- Input
- Text
- Output
- Text
API
- API types
Reasoning
- Reasoning
- Yes
- Levels
- —
Info
- Status
- Deprecated
- Released
- 2025-12-15
- Knowledge cutoff
- 2025-03
Features
- Confirmed
How to call
1 provider
upstagemodel = solar-pro2
chat
POSThttps://api.upstage.ai/v1/chat/completions
JSON
Standard format
{
"id": "solar-pro2",
"object": "model",
"created": 1765756800,
"owned_by": "upstage",
"name": "Solar Pro 2",
"api": {
"types": [
"chat"
]
},
"limits": {
"context": 65536,
"input": null,
"output": null
},
"modalities": {
"input": [
"text"
],
"output": [
"text"
]
},
"reasoning": {
"supported": true,
"efforts": []
},
"pricing": {
"currency": "USD",
"unit": "1M_tokens",
"input": 0.15,
"output": 0.6,
"cache_read": 0.015,
"cache_write": null
},
"features": [
"tools",
"structured_output"
],
"info": {
"status": "deprecated",
"release_date": "2025-12-15",
"knowledge_cutoff": "2025-03",
"description": "High-performance Solar model (31B parameters) supporting both chat and reasoning modes; fully deprecated on 2026-10-30 (KST), migrate to Solar Pro 4.",
"docs": "https://console.upstage.ai/docs/models/solar-pro-2",
"verified_at": "2026-10-11"
}
}Official sources
4