Models
IntelligenceHigher
SpeedFast
Price
$0.10/1M tokensInput Token
Price
$0.40/1M tokensOutput Token
Price
$0.01/1M tokensCached Token
Solar Mini 4 is Upstage's cost-efficient, compact language model (35B total / 3B active parameters), built for agentic use cases where response speed and cost matter. It combines fluent Korean with strong English and Japanese capabilities and supports long-context workloads.
512K context length
35B / 3B active parameters
Feb, 2026 training data cut-off
Reasoning mode available
Languages
EnglishInput and output
KoreanInput and output
JapaneseInput and output
Capabilities
Max output tokens
128K
Available Platforms
Versions
solar-mini4-260922
Released on 2026-09-22Alias: solar-mini4
Training data cut-off: Feb, 2026Solar Mini 4 is Upstage's cost-efficient, compact model built for agentic use.
- 35B total parameters with 3B active
- 512K context length and up to 128K output tokens
- Fluent Korean alongside strong English and Japanese support
- Supports chat, reasoning, structured outputs, and tool calling
- Avaialble platforms : Upstage Console, Playground, 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.
