Upstage
Upstage ranks #26 of 91 providers on BenchLeader by its best model, with 4 ranked models. Its best model is Solar Open2 250B at 53.6 on the BenchLeader Index, strongest in knowledge. Prices run from $0.262 to $0.525 per million tokens blended; Solar Pro 3 is the cheapest ranked option. The fastest is Solar Pro 3 at 139 tokens per second. 4 of its 9 models ship open weights. It has shipped 7 dated releases, roughly one every 41 days; the last was 22 Sept 2026, so the next would be due between 16 Oct 2026 and 18 Nov 2026 on that pattern.
- Provider rank
- #26
- by best model
- Best index
- 53.6
- Solar Open2 250B
- Ranked models
- 4
- 4 open weights
- Cheapest ranked
- $0.262/M
- Solar Pro 3
Release timeline
Each model’s best configuration by release date. The top eight are labelled; hover any point for its name.
- Upstage4
Next release
Over the last two years Upstage shipped 7 distinct models, one every 41 days on median. The latest arrived on 22 Sept 2026.
If the cadence holds, the next one lands between 16 Oct 2026 and 18 Nov 2026.
An estimate from past release dates only. It knows nothing about roadmaps or announcements.
Fastest ranked model: Solar Pro 3 at 139 tok/s.
Models
Every Upstage model with a result, one row per model; switch to all configurations to see each reasoning effort.
| # | ||||||||
|---|---|---|---|---|---|---|---|---|
| 1 | Solar Open2 250Bopen ↗ | 53.6±4 | – | – | – | 1.0M | 2026-08-12 | 2026-08-12 |
| 2 | Solar Pro 4 | 53.4±8 | $0.525 | 64 | 1.75 s | 524k | 2026-08-06 | 2026-10-23 |
| 3 | Solar Open 100Bthinkingopen ↗ | 45.3±6 | – | – | – | 128k | 2025-12-17 | 2025-12-17 · stale |
| 4 | Solar Pro 3 | 43.2±9 | $0.262 | 139 | 16 s | 131k | 2026-01-27 | 2026-04-06 · stale |
| 5 | SOLAR 10.7B Instructopen | – | – | – | – | – | 2024-06-05 | 2026-10-22 |
| 6 | Solar Mini 4 | – | $0.175 | 95 | 23 s | 524k | 2026-09-22 | 2026-09-22 |
| 7 | solar-mini(Jan 2024)open | – | $0.150 | – | – | 33k | 2024-01-25 | 2024-01-25 · stale |
| 8 | solar-pro2 | – | $0.250 | – | – | 66k | 2025-05-20 | – |
| 9 | solar-pro3 | – | $0.250 | – | – | 131k | 2026-01-26 | – |
Latest news
- Sendbird, Upstage Partner on Sovereign AIthelec.net · 20 Oct 2026
- JB Financial invests W40b in AI firm Upstage to co-develop finance-focused AI agents헤럴드경제 · 20 Oct 2026
- Sendbird to Integrate Upstage's 'Solar' Into Enterprise AI Agents, Accelerating Commercialization of South Korean LLMsBigGo Finance · 19 Oct 2026
- JB Financial Group will invest 40 billion won in Upstage, a domestic artificial intelligence (AI) te..매일경제 · 20 Oct 2026
- VESSL AI Powers Global Inference Service for Upstage’s Solar Pro 4, Backing Its No. 3 Usage Ranking on OpenRouterEIN Presswire · 13 Oct 2026
- JB Financial invests 40 billion won in Upstage, forming AI banking alliance with Finda머니투데이 · 20 Oct 2026
- Upstage AI Unveils Artificial Analysis IndexSupply & Demand Chain Executive · 24 Aug 2026
- JB Financial Invests 40 Billion Won in Upstage for 2% StakeSeoul Economic Daily · 20 Oct 2026