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AI model · Upstage

Solar Mini 4

Solar Mini 4 is Upstage's compact, cost-efficient language model, a 35B-parameter mixture-of-experts with 3B active parameters and a 524K context window. It is built for agentic use cases where response...

The figures

Made by
Upstage
Model ID
upstage/solar-mini4
Input
$0.05 per million tokens
Output
$0.2 per million tokens
Context window
524K tokens
Longest answer
131K tokens
Takes in
text
Gives back
text
Reasoning
Yes
Tool calling
Yes
Reads images
No
Open weights
No
Released
23 Sept 2026

Read on 3 Oct 2026.