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This stealth model was developed and operated by Unbiased, revealed to be Unbiased ParetoOpens in new tab. Prompts and completions for this model may have been retained by the provider but are not used for training; all other use is governed by the Stealth Model TermsOpens in new tab.

stealth 的网站图标

Union Alpha

stealth/union-alpha

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 was a stealth model, revealed to be ParetoOpens in new tab by Unbiased. OpenRouter routed requests to it and was 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 TermsOpens in new tab. The free stealth period has ended; use Pareto at https://openrouter.ai/unbiased/paretoOpens in new tab.

模态
上下文
262K
发布时间
2026年9月16日
活动常见问题探索

活动

此模型的 token 用量和请求流量随时间的变化。

目前无法通过 EU 区域内路由使用。 区域内路由文档

探索更多模型

具备视觉能力的 AI 模型：用于图像理解的多模态大语言模型集合AI 模型排行榜排名

常见问题

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 was a stealth model, revealed to be Pareto by Unbiased. OpenRouter routed requests to it and was not its developer, owner, or provider.

Union Alpha 的上下文窗口为 262,144 token。

Union Alpha 接受 文本和图像 作为输入，并返回 文本。

Union Alpha 于 2026年9月16日 发布。

更多模型，来自 Stealth

Space Bunny Alpha

Space Bunny Alpha is an anonymous large model with blazing-fast inference, strong coding capabilities and native multimodal input support. It delivers adjustable reasoning effort, and a 1M-token context window.

Space Bunny Alpha was a stealth model, revealed to be MiniMax M3.1 Flash by MiniMax. OpenRouter routed requests to it and was 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. The free stealth period has ended; use MiniMax M3.1 Flash at https://openrouter.ai/minimax/minimax-m3.1-flash.

文本1M 上下文
Ox Alpha

Ox Alpha is a reasoning model designed for coding, sustained agentic work, and production workloads. It is suited for long-horizon software engineering, complex reasoning, and workflows that combine text with visual context.

Ox 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 are retained by the provider and are not used for training; all other use is governed by the Stealth Model Terms.

文本1.0M 上下文