Tier
Moderate
Headquarters
Seoul, South Korea
Founded
2020
Flagship
Solar
Models tracked
7
Artificial Analysis
Top intelligence
25.9
Artificial Analysis Index
Cheapest model
$0.00
blended /1M
Fastest output
77
tokens / sec
Flagship
Upstage’s top-scoring model on the Artificial Analysis Intelligence Index.
Most intelligent model
Solar Pro 3
Released 2026-04-06
Intelligence
25.9
Coding
13.3
Math
—
In $/1M
$0.00
Out $/1M
$0.00
Speed t/s
0
Benchmark breakdown
Models & benchmarks
Every Upstage model on file — intelligence, coding, price, and speed.
| Model | Released | Intel | Coding | Math | In $/1M | Out $/1M | Speed t/s | Latency s |
|---|---|---|---|---|---|---|---|---|
| Solar Pro 3 | 2026-04-06 | 25.9 | 13.3 | — | $0.00 | $0.00 | 0 | 0.00 |
| Solar Open 100B (Reasoning) | 2025-12-17 | 21.7 | 10.5 | — | $0.00 | $0.00 | 0 | 0.00 |
| Solar Pro 2 (Preview) (Reasoning) | 2025-05-20 | 18.8 | — | — | $0.00 | $0.00 | 0 | 0.00 |
| Solar Pro 2 (Preview) (Non-reasoning) | 2025-05-20 | 16.0 | — | — | $0.00 | $0.00 | 0 | 0.00 |
| Solar Pro 2 (Reasoning) | 2025-07-09 | 14.9 | 12.1 | 61.3 | $0.00 | $0.00 | 0 | 0.00 |
| Solar Pro 2 (Non-reasoning) | 2025-07-09 | 13.6 | 11.3 | 30.0 | $0.00 | $0.00 | 0 | 0.00 |
| Solar Mini | 2024-01-25 | 11.9 | — | — | $0.15 | $0.15 | 77 | 0.83 |
Trajectory
Upstage’s model releases over time, by intelligence.
House strengths
Where Upstage’s lineup over-indexes, averaged across its models.
Capability profile
Best value
Solar Mini
Most intelligence per dollar — 11.9 index at $0.15/1M blended.
79 index points per $1
Overview
A South Korean AI company building the Solar family of efficient small language models for enterprise document and reasoning tasks.
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