Upstage: Solar Pro 3 (free)
Review
Upstage's Solar Pro 3 is available free of charge with tool use and function calling support, but has no published benchmark data, making it difficult to assess its suitability for professional business tasks.
Assessment date: April 4, 2026
Our methodology takes into account a range of factors including pricing, functionality, capabilities, benchmark performance, and real-world applicability. Rankings are reviewed and updated regularly as new models are released. Issues with our rankings? Contact us
Performance Profile
Solar Pro 3 is Upstage's powerful Mixture-of-Experts (MoE) language model. With 102B total parameters and 12B active parameters per forward pass, it delivers exceptional performance while maintaining computational efficiency. Optimized for Korean with English and Japanese support.
Capabilities
Architecture
| Modality | Text → Text |
| Tokenizer | Other |
How does Upstage: Solar Pro 3 (free) stack up?
Compare side-by-side with other emerging models.
Model Information
| OpenRouter ID |
upstage/solar-pro-3:free
|
| Provider | upstage |
| Release Date | January 27, 2026 |
| Context Length | 128,000 tokens |
| Status | Active |
