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Solar Mini 4 Thinking

upstage·upstage/solar-mini4-thinking·GA·Closed·solar series·NEW
Solar Mini 4 with reasoning enabled for agentic tasks and harder analysis across a 524K-token context window.

Specs & pricing

Input / output per 1M tokens
Reference price·NanoGPT
$0.05 / $0.20
Blended $0.088 · Cache read $0.005
Lowest paid·NanoGPTGateway
$0.05 / $0.20
Blended $0.088
Context
524,288
Output limit
131,072
Knowledge cutoff
—
Released / updated
2026-09-23 / 2026-09-23
Capabilities
✓ Reasoning✓ Tool use✓ Structured output? TemperatureAttachments
Modalities
Text

Available at 1 providers1 with public prices

ProviderTierInputOutputCache readCache writeContextOutput limitStatus
NanoGPT
upstage/solar-mini4:thinking
Gateway$0.05$0.20$0.005—524,288131,072

Sorted by blended price (input×0.75 + output×0.25) asc. The official channel always shows regardless of rank. Whether a gateway's low price is actually usable can't be verified.

Reasoning control

effort = noneeffort = loweffort = mediumeffort = high

Your usage cost

1NanoGPT$14.60
The cheapest paid channel is the only channel.

Price historyone sample accumulated per data sync

Input list $0.05Output list $0.20Min blended $0.088

Price history accumulates from each data sync; currently only 1 sample(s) (2026-09-24). Each future sync adds a point, and once accumulated a line is drawn here.

Related models

upSolar Mini 4same series$0.10 / $0.40Nemotron 3.5 Lightning 30B A3Bcheaper alternative$0 / $0Qwen3.7 Flashcheaper alternative$0.03 / $0.12Laguna S 2.1cheaper alternative$0 / $0Laguna XS 2.1cheaper alternative$0 / $0
Data partly from models.dev (MIT) · NanoGPT official docs ↗