Upstage: Solar Pro 3
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... 102B total parameters with 12B active (MoE architecture) Strong general intelligence at budget pricing ($0.15/$0.60 per 1M tokens) 128K context window for long-document processing Efficient compute via mixture-of-experts design Competitive with models 5-10x the price No reasoning/thinking mode for complex logic chains Smaller active parameter count limits raw capability vs larger models Limited ecosystem and community compared to major labs Cost-sensitive production workloads General chat and content generation Document analysis and summarization Enterprise deployment at scale
Specifications
| Lab | Upstage |
|---|---|
| Context window | 128,000 |
| Input price | $0.15/1M |
| Output price | $0.60/1M |
| Release | 2026-01-01 00:00:00 |
Strengths
- 102B total parameters with 12B active (MoE architecture)
- Strong general intelligence at budget pricing ($0.15/$0.60 per 1M tokens)
- 128K context window for long-document processing
- Efficient compute via mixture-of-experts design
- Competitive with models 5-10x the price
Weaknesses
- No reasoning/thinking mode for complex logic chains
- Smaller active parameter count limits raw capability vs larger models
- Limited ecosystem and community compared to major labs
Best for
- Cost-sensitive production workloads
- General chat and content generation
- Document analysis and summarization
- Enterprise deployment at scale
In Depth: Solar Pro 3
Summary
Solar Pro 3 is an AI model from Upstage.
Released 2026-01-01 00:00:00. It currently appears in the Overall category on LMRank. It supports Text input and produces Text output, with a context window of 128K tokens. Input pricing is $0.15 per 1M tokens and output is $0.60 per 1M tokens on OpenRouter.