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Attribute

Upstage

Solar Mini 4
fast
Overview
CompanyUpstage
Version4
Tierfast
Released2026-09-23
Open weightsNo
Parameters—
StatusActive
Pricing (USD per 1M tokens)
Input$0.050
Output$0.20
Cached input$0.005
Batch input—
Batch output—
Blended (3 in : 1 out)$0.088
Est. cost per token$0.000000087
Capacity
Context window524K
Max output131K
Inputstext
Features
CachingYes
JSON schemaYes
ReasoningYes
ToolsYes
Task fit (heuristic, 1–5)
coding3 / 5
reasoning3 / 5
math3 / 5
summarization4 / 5
extraction4 / 5
classification4 / 5
chat3 / 5
creative3 / 5
translation4 / 5
vision1 / 5
long context4 / 5
agentic3 / 5

Prices are USD per 1M tokens from vendor price lists. “—” means the vendor does not publish it.