Upstage: Models Intelligence, Performance & Price

Upstage
Upstage

This analysis is intended to support you in choosing the best model provided by Upstage for your use-case.

Most Intelligent

#1
Solar Pro 4Solar Pro 4
27
#2
Solar Mini 4Solar Mini 4
24
#3
Solar Pro 3Solar Pro 3
8

Intelligence Index

Total 3 models

Fastest

#1
Solar Pro 3Solar Pro 3
160 t/s
#2
Solar Pro 4Solar Pro 4
113 t/s
#3
Solar Mini 4Solar Mini 4
80 t/s

Output speed

Total 3 models

Lowest Price

#1
Solar Mini 4Solar Mini 4
$0.07
#2
Solar Pro 3Solar Pro 3
$0.10
#3
Solar Pro 4Solar Pro 4
$0.22

Blended price (per 1M tokens)

Total 3 models

Upstage offers 3 models, each with different intelligence, performance, and pricing characteristics. Below is a comparison of the key metrics across models.

  • For intelligence, the top models on Upstage are Solar Pro 4 (27), Solar Mini 4 (24), and Solar Pro 3 (8).
  • For output speed, the fastest models are Solar Pro 3 (160 t/s), Solar Pro 4 (113 t/s), and Solar Mini 4 (80 t/s).
  • For latency, Solar Pro 3 (13.79s), Solar Pro 4 (19.34s), and Solar Mini 4 (26.89s) offer the lowest time to first answer token.
  • For pricing, Solar Mini 4 ($0.07), Solar Pro 3 ($0.10), and Solar Pro 4 ($0.22) offer the lowest blended prices per 1M tokens.
  • For context window size, Solar Mini 4 (524k), Solar Pro 4 (512k), and Solar Pro 3 (131k) support the largest context windows on Upstage.
Artificial Analysis Intelligence Index · Higher is better
Output tokens per second · Higher is better
USD per 1M tokens (blended) · Lower is better

Intelligence Evaluations

Artificial Analysis Intelligence Index

Artificial Analysis Intelligence Index v4.3.2 incorporates 10 evaluations: AA-Briefcase v1.1, GDPval-AA v2.1, AutomationBench-AA, Terminal-Bench 4.0, SciCode, Humanity's Last Exam, GDP.pdf, CritPt, AA-Omniscience, AA-LCR v1.1

Evaluations

Intelligence evaluations measured independently by Artificial Analysis · Higher is better
See more

Agentic knowledge work, (Elo-500)/2000

Agentic SaaS workflows

Agentic real-world work tasks, (Elo-500)/2000

Reasoning & knowledge

Professional document reasoning, All-pass

Agentic coding & terminal use

Long context reasoning

SciCodeUnder review

Coding

CritPtUnder review

Physics reasoning

Agentic scientific research workflows in a terminal

No data available

Agentic software engineering in open-source repositories

No data available

Quantitative analysis on spreadsheets & documents

No data available

Legal agentic work, Hallucination-Gated All-Pass Rate

No data available

Agentic business operations

No data available

Kubernetes incident root-cause analysis

No data available

Medical long context reasoning

Visual reasoning

No data available

Intelligence Index vs. Price

Blended at 7:2:1 (cache-input-output) · USD per 1M tokens (blended)
Most attractive quadrant
Pareto line

Context Window

Context Window

Context window: tokens limit · Higher is better

Pricing

Intelligence Index vs. Price

Blended at 7:2:1 (cache-input-output) · USD per 1M tokens (blended)
Most attractive quadrant
Pareto line

Performance Summary

Output Speed vs. Price

Output speed: output tokens per second · USD per 1M tokens (blended)
Most attractive quadrant
Pareto line

Speed

Measured by Output Speed (tokens per second)

Output Speed

Output tokens per second · Higher is better

Latency

Measured by Time (seconds) to First Token

Latency: Time To First Answer Token

Seconds to first answer token received · Accounts for reasoning model 'thinking' time

Cache Behaviour

Cache Hit Rate

Share of cacheable input tokens served from cache · Median of the last four weeks, updated Sep 26, 2026

Cost per Task vs. Cache Hit Rate

Weighted average cost (USD) per Intelligence Index task · Cache hit rate: median of the last four weeks, updated Sep 26, 2026
Most attractive quadrant
Pareto line

End-to-End Response Time

Seconds to output 500 tokens, calculated based on time to first token, 'thinking' time for reasoning models, and output speed

End-to-End Response Time vs. Price

End-to-end response time: end-to-end seconds to output 500 tokens · USD per 1M tokens (blended)
Most attractive quadrant
Pareto line

Further Analysis
Upstage logo
Solar Pro 4
512k
Proprietary
27
$0.71
112
1.57
23.86
17.83
Upstage logo
Solar Mini 4
524k
Proprietary
24
$0.37
81
1.82
32.77
24.77
Upstage logo
Solar Pro 3
131k
Proprietary
8
$0.08
160
1.30
16.88
12.46
Upstage logo
Solar Mini
4.1k
Open
6*
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Key definitions

Frequently Asked Questions

Common questions about Upstage