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 | $0.09per Mtok in$0.36per Mtok out$0.018per Mtok cachedinference-api.nousresearch.com · read 2026-09-12 |
| OpenRouter 3 ways | $0.09per Mtok in$0.36per Mtok out$0.018per Mtok cached | |
| OpenRouter aggregator | standard | $0.09per Mtok in$0.36per Mtok out$0.018per Mtok cachedopenrouter.ai · read 2026-09-11 |
| OpenRouter aggregator | upstage | $0.09per Mtok in$0.36per Mtok out$0.018per Mtok cachedopenrouter.ai · read 2026-09-11 |
| OpenRouter aggregator | upstage/zdr | $0.09per Mtok in$0.36per Mtok out$0.018per Mtok cachedopenrouter.ai · read 2026-09-11 |
Measured 11 standings
| Place | Board | Metric | Score |
|---|---|---|---|
| 52ndof 62 | Design Arena · webapps (agents) | Elo | 1121 |
| 66thof 147 | Design Arena · 3d (models) | Elo | 1207 |
| 75thof 156 | Design Arena · codecategories (models) | Elo | 1198 |
| 75thof 155 | Design Arena · gamedev (models) | Elo | 1194 |
| 77thof 302 | Artificial Analysis · Intelligence Index | Artificial Analysis Intelligence Index | 28 |
| 80thof 184 | Artificial Analysis · Coding Index | Index | 52.7 |
| 81stof 152 | Design Arena · dataviz (models) | Elo | 1196 |
| 88thof 128 | LMArena · WebDev | Score (Elo) | 1371 |
| 92ndof 150 | Design Arena · uicomponent (models) | Elo | 1166 |
| 92ndof 162 | Design Arena · website (models) | Elo | 1188 |
| 177thof 402 | LMArena · Text | Score (Elo) | 1376 |
About
Solar Pro 4 — a text model from Upstage, sold by 3 companies from $0.09 in and $0.36 out per million tokens, placed 77th of 302 on Artificial Analysis · Intelligence Index.
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 $0.09 in and $0.36 out per million tokens at Nous Research. Beside the standard rate there are separately routed and regional lanes. It has been measured on 11 boards, and stands best at 77th of 302 on Artificial Analysis · Intelligence Index.
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
- $0.09 in and $0.36 out per million tokens — Nous Research
- Boards
- 11
- Best place
- 77th of 302 — Artificial Analysis · Intelligence Index
Known as 2 names
upstage/solar-pro4solar-pro4