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Upstage: Solar Pro 3

upstage/solar-pro-3

Released Jan 27, 2026128,000 context

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.

Recent activity on Solar Pro 3

Total usage per day on OpenRouter

Prompt
2.5M
Completion
140K
Reasoning
0

Prompt tokens measure input size. Reasoning tokens show internal thinking before a response. Completion tokens reflect total output length.