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Solar Pro 3

Upstage · 2026-01-26

Solar Pro 3 is Upstage's successor to Solar Pro 2, released as an API model optimized for stronger reasoning and instruction following while preserving the same API interface, throughput, and serving behavior. It is designed as a drop-in production upgrade for Solar Pro 2 workloads, with improved response quality for multi-step reasoning, subtle instruction following, and complex preference judgments.

Benchmark scores

BenchmarkScore
AA-Briefcase Elo122
AA-Briefcase v1.1 Elo99.6
AA-LCR27.0
AA-LCR v1.132.3
AA-Omniscience Index-53.4
AA-Omniscience v1.1 Accuracy17.5
AA-Omniscience v1.1 Hallucination Rate86.4
AA-Omniscience v1.1 Index-53.7
Artificial Analysis Agentic Index2.7
Artificial Analysis Coding Index16.2
Artificial Analysis Intelligence Index14.1
Artificial Analysis Intelligence Index v4.37.8
Artificial Analysis Intelligence Index v4.3.27.8
Artificial Analysis Omniscience Accuracy18.5
Artificial Analysis Omniscience Hallucination Rate88.2
Artificial Analysis Progress Index v1214
AutomationBench-AA 1.0.60.5
BuseyBench SVG1.2
Capability129.7
CritPt (avg@5)0.0
GDP.pdf (Artificial Analysis, All-pass)1.6
GDP.pdf (Artificial Analysis, Mean Criteria)38.9
GDPval-AA v2447
GDPval-AA v2 (normalized)0.0
GDPval-AA v2.1272
GPQA Diamond (Artificial Analysis avg@5)72.4
Humanity's Last Exam (Text-Only)10.3
IFBench (Artificial Analysis avg@5)71.2
Longform Creative Writing27.0
Medical Long Context Reasoning (MLCR-AA, October 2026 methodology)0.6
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