Upstage API pricing and price changes
3 Upstage models we price today. Since Mar 26, 2024 we recorded 1 list-price changes on OpenRouter: 0 cuts and 1 increases.
Upstage models
| Model | Chat answer | In / out per 1M | Released |
|---|---|---|---|
| U Solar Mini 4 | 0.13¢$1.27 / 1,000 | $0.05 / $0.20 | Sep 23, 2026 |
| U Solar Pro 4 | 0.04¢$0.36 / 1,000 | $0.09 / $0.36 | Aug 10, 2026 |
| U Solar Pro 3 | 0.06¢$0.61 / 1,000 | $0.15 / $0.60 | Jan 27, 2026 |
Price change log
Changes of at least 5% in the OpenRouter list price, detected between weekly snapshots (Internet Archive copies of the public model list before October 2026, our daily pulls after). For open-weight models a change can mean a different cheapest host.
| Model | Change | Input | Output |
|---|---|---|---|
| Solar Pro 4Aug 14, 2026 → Sep 14, 2026 | +200% | $0.03 → $0.09 | $0.12 → $0.36 |