Claude Fable 5$22.000/MClaude Opus 5$11.000/MClaude Opus 4.8$11.000/MClaude Opus 4.7$11.000/MClaude Opus 4.6$11.000/MClaude Opus 4.5$33.000/MClaude Sonnet 3.7$6.600/MClaude Opus 3$33.000/MClaude 2.1$12.800/MClaude 2$12.800/MGPT-5.6 Sol$12.500/MGPT-5.6 Terra$5.000/MGPT-5.5$12.500/MGPT-5.2$5.425/MGPT-5.2-Codex$5.425/MGPT-5$3.875/MGPT-4.5$97.500/MGPT-4 Turbo Preview$16.000/MGPT-4$39.000/MGPT-4-32k$78.000/Mo3$19.000/Mo3-mini$2.090/Mo4-mini$2.090/Mo1$28.500/Mo1-mini$5.700/Mo1-preview$28.500/MGemini 3.5 Pro$5.000/MGemini 3.1 Pro$5.000/MGemini 3 Pro$5.000/MGemini 2.5 Pro$3.875/MClaude Fable 5$22.000/MClaude Opus 5$11.000/MClaude Opus 4.8$11.000/MClaude Opus 4.7$11.000/MClaude Opus 4.6$11.000/MClaude Opus 4.5$33.000/MClaude Sonnet 3.7$6.600/MClaude Opus 3$33.000/MClaude 2.1$12.800/MClaude 2$12.800/MGPT-5.6 Sol$12.500/MGPT-5.6 Terra$5.000/MGPT-5.5$12.500/MGPT-5.2$5.425/MGPT-5.2-Codex$5.425/MGPT-5$3.875/MGPT-4.5$97.500/MGPT-4 Turbo Preview$16.000/MGPT-4$39.000/MGPT-4-32k$78.000/Mo3$19.000/Mo3-mini$2.090/Mo4-mini$2.090/Mo1$28.500/Mo1-mini$5.700/Mo1-preview$28.500/MGemini 3.5 Pro$5.000/MGemini 3.1 Pro$5.000/MGemini 3 Pro$5.000/MGemini 2.5 Pro$3.875/M

BETA

← Back to Index·All Upstage models

UpstageEfficientLIVE INDEX

Solar Pro 4

text->text

Upstage's flagship Solar. 22B-class dense model; punches above its weight on Korean and English benchmarks.

Solar Pro 4 is a efficient AI model from Upstage. It costs $0.030 per million input tokens and $0.120 per million output tokens (blended $0.057/M), with a 524,288-token context window.

Profile inherited from upstream Solar Pro ↗ — this is a hosted variant of the same open-weights model.

Modalities textOfficial model page ↗Provider pricing ↗API docs ↗Pricing source ↗Compare with another model →Estimate monthly cost →

INPUT

$0.030/M

per million input tokens

OUTPUT

$0.120/M

per million output tokens

BLENDED 70/30

$0.057/M

default reference rate · how it is calculated →

CONTEXT

524,288

tokens

What it is good at

Strong Korean coverage
Single-GPU friendly
Open weights variants

Typical use cases

Korean-first production chat
Multilingual self-hosted chat

Benchmarks

vs. best public score

Scores inherited from Solar Pro — this is a hosted variant of the same open-weights model, so the underlying benchmark scores are identical.

Multitask academic knowledge across 57 subjects.

Python function synthesis from docstrings.

LMArena Elo1192 Elo

Crowd-sourced head-to-head preference Elo rating.

Hand-curated from each provider's published reports and public leaderboards. Methodology varies across sources, treat as directional rather than authoritative.

More from Upstage

Frontier · 32,000 ctx

in $1.500/Mout $6.000/M

Efficient · 32,000 ctx

in $0.150/Mout $0.600/M

Solar Embedding

Embedding · 4,000 ctx

in $0.100/M

Frequently asked questions

How much does Solar Pro 4 cost?

Solar Pro 4 costs $0.030 per million input tokens and $0.120 per million output tokens, for a blended reference rate of $0.057 per million tokens.

What is Solar Pro 4's context window?

Solar Pro 4 supports up to 524,288 tokens of context in a single request.

What is Solar Pro 4 best for?

Solar Pro 4 is well suited to Strong Korean coverage, Single-GPU friendly and Open weights variants.

Who makes Solar Pro 4?

Solar Pro 4 is developed and served by Upstage.

Terms used on this page

Full glossary →

Token Input tokens Output tokens Price per million tokens Context window Prompt caching Batch API Blended cost