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.
Modalities
Price
Free
Context
128K
Released
Jan 27, 2026
Token volume and request traffic to this model over time.
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.
Yes. The pricing shown on this page for Solar Pro 3 is zero, so you are not charged for prompt or completion tokens. Free endpoints are rate limited — see the rate limit docs.
Solar Pro 3 has a 128,000 token context window.
Solar Pro 4 is another text model from Upstage.
Solar Pro 3 was released on January 27, 2026.