Union Alpha

Stealth • union-alpha

Model Information

Slug	union-alpha
LLMs.txt	View
Release Date	September 16, 2026 New

Organization

Name	Stealth

Model Description

Union Alpha is a multimodal model built for research, coding, and agentic workflows, while delivering frontier-level performance across a broad range of general-purpose tasks.

Union Alpha is a stealth model. It is developed and operated by a third-party provider who has chosen to remain anonymous during this preview. OpenRouter routes requests to it and is not its developer, owner, or provider. Prompts and completions may be retained by the provider but are not used for training; all other use is governed by the [Stealth Model Terms](https://openrouter.ai/terms/stealth)

Available at 17 Providers

Provider	Type	Model Name	Original Model	Input ($/1M)	Output ($/1M)	Actions
Cline	Code	Union Alpha	`stealth/union-alpha`	$0.00	$0.00	Visit
Kilo Code	Code	Union Alpha	`stealth/union-alpha`	$0.00	$0.00	Visit
OpenCode Go	Chat Code	Union Alpha Free	`union-alpha`	$0.00	$0.00	Visit
Nous Research		Union Alpha	`stealth/union-alpha`	$0.00	$0.00	Visit
OpenRouter	Chat Code	Union Alpha	`stealth/union-alpha`	$0.00	$0.00	Model
OpenCode Zen	Chat Code	union-alpha	`union-alpha`	$0.00	$0.00	Visit
AIHubMix	Chat Code	union-alpha-free	`union-alpha-free`	$0.00	$0.00	Model
TokenRouter		stealth/union-alpha	`stealth/union-alpha`	$0.00	$0.00	Model
TokenReply	Chat Code	union-alpha	`union-alpha`	$0.00	$0.00	Visit
KiosAPI		union-alpha	`union-alpha`	$0.00	$0.00	Visit
AIMLAPI		Union Alpha	`stealth/union-alpha`	-	-	Visit
OpenAdapter	Chat Code	openadapter	`free/union-alpha`	-	-	Visit
ValorGPT		ST	`stealth-union-alpha`	-	-	Model
Experiential Labs			`union-alpha`	-	-	Visit
Krater		Union Alpha	`union-alpha`	-	-	Visit
OrcaRouter		Union Alpha (Free)	`stealth/union-alpha-free`	-	-	Visit
Writingmate	Chat Code	Union Alpha	`stealth/union-alpha`	-	-	Model

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