Solar Pro 4
Solar Pro 4 is Upstage's cost-efficient large language model, featuring a 524K context window.
text → text · made by Upstage
Sold by 5 ways
| Seller | Lane | Rate |
|---|---|---|
| Upstage api | standard | $0.3per Mtok in$1.2per Mtok out$0.06per Mtok cachedupstage.ai · read 2026-08-25 |
| Nous Research aggregator | standard | $0.15per Mtok in$0.6per Mtok out$0.03per Mtok cachedinference-api.nousresearch.com · read 2026-10-20 |
| OpenRouter 3 ways | $0.15per Mtok in$0.6per Mtok out$0.03per Mtok cached | |
| OpenRouter aggregator | standard | $0.15per Mtok in$0.6per Mtok out$0.03per Mtok cachedopenrouter.ai · read 2026-10-20 |
| OpenRouter aggregator | upstage | $0.15per Mtok in$0.6per Mtok out$0.03per Mtok cachedopenrouter.ai · read 2026-10-20 |
| OpenRouter aggregator | upstage/zdr | $0.15per Mtok in$0.6per Mtok out$0.03per Mtok cachedopenrouter.ai · read 2026-10-20 |
Measured 10 standings
| Place | Board | Metric | Score |
|---|---|---|---|
| 58thof 68 | Design Arena · webapps (agents) | Elo | 1093 |
| 76thof 163 | Artificial Analysis · Coding Index | Index | 52.7 |
| 79thof 150 | Design Arena · 3d (models) | Elo | 1175 |
| 91stof 162 | Design Arena · gamedev (models) | Elo | 1170 |
| 92ndof 163 | Design Arena · codecategories (models) | Elo | 1180 |
| 94thof 154 | Design Arena · dataviz (models) | Elo | 1177 |
| 101stof 141 | LMArena · WebDev | Score (Elo) | 1371 |
| 105thof 169 | Design Arena · website (models) | Elo | 1176 |
| 106thof 157 | Design Arena · uicomponent (models) | Elo | 1145 |
| 182ndof 414 | LMArena · Text | Score (Elo) | 1386 |
About
Solar Pro 4 — a text model from Upstage, sold by 3 companies from $0.15 in and $0.6 out per million tokens, placed 182nd of 414 on LMArena · Text.
It takes text and returns text, with a context window of 524,288 tokens. It was published in August 2026, trained on material up to February 2026. Its sellers say it can reason step by step and call a tool. The catalogue files it under code. Three companies sell it. The cheapest is $0.15 in and $0.6 out per million tokens at Nous Research. Beside the standard rate there are separately routed and regional lanes. It has been measured on 10 boards, and stands best at 182nd of 414 on LMArena · Text.
Every current figure
- Maker
- Upstage
- Register
- model
- Takes
- text
- Returns
- text
- Context
- 524,288 tokens
- Longest answer
- 131,072 tokens
- Published
- August 2026
- Knowledge to
- February 2026
- Licence
- not read
- Sellers
- 3
- Price
- $0.15 in and $0.6 out per million tokens — Nous Research
- Boards
- 10
- Best place
- 182nd of 414 — LMArena · Text
Known as 2 names
upstage/solar-pro4solar-pro4