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Wednesday, Sep 16, 2026

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NEWUnion Alpha Launches Stealth Multimodal AI With 256K Context for Agentic Coding
topics 🤖 AI tags AIAI ModelsAI ReleasesAI ProductsAI Agents keywords UnionAlex Atallah

The newly released AI system from Union Alpha supports image processing and tool calling to facilitate specialized research and automation. It features a 256K context window and is free to use for one week starting Sept. 16. The provider does not train the system on user prompts or completions to ensure data security for developers using the tool for private projects.

Available through OpenRouter, the stealth model targets frontier-level performance for general-purpose tasks. Alex Atallah released DeepSWE benchmark results to demonstrate the system's capability in autonomous software engineering and its compatibility with various developer harnesses for agentic workflows.

Image via @alexatallah on X
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