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Solar Mini 4 is Upstage's compact mixture-of-experts model (35B total, 3B active parameters, 524K-token context), released September 23, 2026 at $0.05/$0.20 per million input/output tokens. It is built for fast, low-cost agentic use with tool calling and structured outputs, with fluent Korean alongside strong English and Japanese, as a cheaper sibling to Solar Pro 4.
Cost rate
0.1x
Context
524K
Released
Sep 23, 2026
Input
Text
Output
Text
Support
ReasoningTool callingStructured outputs
Best at
The categories where this model ranks highest.
No top-ranked categories found.
Performance
Median latency and throughput measured across recent requests.
Throughput91 tok/s
Latency2.02s