Solar Pro 4

Upstage • solar-pro4

Model Information

Slug	solar-pro4
LLMs.txt	View
Release Date	August 6, 2026
GPQA	0.89
SWE Bench Verified	0.706
Browse Comp	0.492

Organization

Name	Upstage
Website	https://upstage.ai

Model Description

Solar Pro 4 is Upstage's cost-efficient large language model, featuring a 524K context window. It is built for long-horizon tasks and agentic workflows, with strong capabilities in office productivity, document-intensive work, and coding.

When using BYOK with ZDR enforcement, the Console API key must belong to a ZDR-enabled Upstage organization. Contact Upstage to enable ZDR on your org.

Available at 20 Providers

Provider	Type	Model Name	Original Model	Input ($/1M)	Output ($/1M)	Actions
Nous Research		Upstage: Solar Pro 4	`upstage/solar-pro4:free`	$0.00	$0.00	Visit
Freebuff		Solar Pro 4	`solar-pro4`	$0.00	$0.00	Model
Nano-GPT	Chat Code	Solar Pro 4	`upstage/solar-pro4`	$0.03	$0.12	Visit
Nano-GPT	Chat Code	Solar Pro 4 Thinking	`upstage/solar-pro4:thinking`	$0.03	$0.12	Visit
LLMTR		Solar Pro 4	`upstage/solar-pro4`	$0.03	$0.12	Visit
Glama		solar-pro4	`upstage/solar-pro4`	$0.03	$0.12	Model
haimaker.ai		solar-pro4	`upstage/solar-pro4`	$0.03	$0.12	Visit
Cline	Code	Upstage: Solar Pro 4	`upstage/solar-pro4`	$0.09	$0.36	Visit
Nous Research		Upstage: Solar Pro 4	`upstage/solar-pro4`	$0.09	$0.36	Visit
OpenRouter	Chat Code	Solar Pro 4	`upstage/solar-pro4`	$0.09	$0.36	Model
Upstage		Solar Pro 4	`solar-pro4`	$0.30	$1.20	Visit
Kilo Code	Code	Upstage: Solar Pro 4	`upstage/solar-pro4`	$0.30	$1.20	Visit
AIHubMix	Chat Code	solar-pro4	`solar-pro4`	$0.30	$1.20	Model
Arena AI	Chat		`solar-pro4`	-	-	Visit
Krater		Upstage: Solar Pro 4	`solar-pro4`	-	-	Visit
Writingmate	Chat Code	Upstage: Solar Pro 4	`upstage/solar-pro4`	-	-	Model
AIMLAPI		Solar Pro 4	`upstage/solar-pro4`	-	-	Visit
ValorGPT		UP	`upstage-solar-pro4`	-	-	Model
TokenReply	Chat Code	solar-pro4	`solar-pro4`	-	-	Visit
Experiential Labs			`solar-pro4`	-	-	Visit

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