Models
Deprecation notice
Solar Pro 3 (the solar-pro3 alias and all of its versions) will be fully deprecated on October 30, 2026 (KST). Requests naming it will return an error after that date. Please migrate to Solar Pro 4 before then.
IntelligenceHigher
SpeedFast
Price
$0.15/1M tokensInput Token
Price
$0.6/1M tokensOutput Token
Price
$0.015/1M tokensCached Token
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. Learn more β
128,000 context length
102B / 12B active parameters
Jul, 2025 training data cut-off
Reasoning mode available
Languages
EnglishInput and output
KoreanInput and output
JapaneseInput and output
Capabilities
Available Platforms
Upstage Console
Versions
solar-pro3-260323
Released on 2026-03-23Alias: solar-pro3
Training data cut-off: Jul, 2025This release includes the following updates.
- Improved Agentic Performance.
- Improved Deep Reasoning performance.
- Available platforms: Upstage Console, On-premises β
solar-pro3-260126
Released on 2026-01-26Training data cut-off: Jul, 2025Solar 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.
- 102B total parameters / 12B active (MoE architecture)
- 128K context length
- Optimized for Korean language with English and Japanese support
- Supports chat, reasoning, structured outputs, function calling, and parallel tool calls
- Available platforms: On-premises β
API privacy
Data not collectedUpstage does not collect any data from this API
- API input data is not used for model training.
- API input data is not stored, unless required for service delivery and explicitly stated.
