Upstage: Solar Pro 3

Upstage: Solar Pro 3

upstage · Released Jan 27, 2026 Specialist
Intelligence #132 / 557
52.8 Our Score
AA Index #131 / 368
25.9 Artificial Analysis
Input #243 / 560
$0.150 per 1M tokens
Output #263 / 560
$0.600 per 1M tokens
Context #317 / 560
128,000 tokens

Analysis Summary

Upstage: Solar Pro 3 sits in the Specialist tier on our leaderboard, ranked #132 of 557 published models on overall intelligence. At $0.150 input and $0.600 output per 1M tokens, it is among the most expensive on the market. It offers a standard large context window and supports tool use and function calling.

Editorial notes

Upstage Solar Pro 3 shows strong instruction following and agentic scores relative to its intelligence index of 25.9, with tool use and competitive pricing at $0.15 input per million tokens, but coding capability is very limited.

Assessed May 14, 2026

Rankings consider pricing, capabilities, benchmarks, and real-world applicability and are refreshed as new models launch. Feedback?

Performance Profile

Intelligence4.7Technical3.6Value7.8Content5.5
Intelligence 4.7/10
Technical 3.6/10
Content 5.5/10
Value 7.8/10

Solar Pro 3 is Upstage's powerful Mixture-of-Experts (MoE) language model. With 102B total parameters and 12B active parameters per forward pass, it delivers exceptional performance while maintaining computational efficiency. Optimized..

Capabilities

Tool Use Function Calling

Performance Indices

Source: Artificial Analysis

25.9 Intelligence Index
13.3 Coding Index
46.9 Agentic Index

Benchmark Scores

Intelligence

GPQA Diamond 72.4% Graduate-level scientific reasoning
HLE 10.1% Humanity's Last Exam
SciCode 24.7% Scientific computing

Technical

TerminalBench Hard 7.6% Agentic terminal tasks
τ²-Bench 86.3% Conversational agent benchmark

Content

IFBench 71.2% Instruction following
LCR 27% Long-context reasoning

Benchmark data from Artificial Analysis and Hugging Face

How does Upstage: Solar Pro 3 stack up?

Compare side-by-side with other specialist models.

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Model Information

OpenRouter ID upstage/solar-pro-3
Providerupstage
Release Date January 27, 2026
Context Length128,000 tokens
Status Active

Pricing

Token Type Cost per 1M tokens Cost per 1K tokens
Input $0.15 $0.000150
Output $0.60 $0.000600

Leaderboard Categories

SEO