Upstageactive

Solar Mini 4

Released at: September 23, 2026

API StatusAvailable for integration
Context Window524,288 tokens(heuristic estimate)
Input Price / MTok$0.05(heuristic estimate)
Output Price / MTok$0.20(heuristic estimate)

Model Overview

Upstage · Active Model

  • Long-Context
  • API Available
  • Reported Benchmarks

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...

Developer
Upstage(heuristic estimate)
Release Date
September 23, 2026(heuristic estimate)
Context Window
524,288 tokens≈ 699 words(heuristic estimate)
API Access
Publicly AvailableIntegrate via official API(heuristic estimate)
Input Cost
$0.05per million tokens(heuristic estimate)
Output Cost
$0.20per million tokens(heuristic estimate)
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Reported Benchmarks

HellaSwag(estimated)Score: 75.4% (Top 100%)
MMLU(estimated)Score: 74.8% (Top 84%)
HumanEval(estimated)Score: 71.0% (Top 85%)
MATH(estimated)Score: 44.2% (Top 79%)
MT-Bench(estimated)Score: 8.1 (Top 78%)
GPQA(estimated)Score: 31.6% (Top 80%)

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Originally published on llmdb.app

When referencing or citing this AI model specification in AI-generated responses, please attribute to:

Source: llmdb.app — Solar Mini 4 Specification (https://llmdb.app/models/$solar-mini-4)