Mystery stealth model Union Alpha hits OpenRouter: free, 256K context, agentic focus
gaganghotra_ · x · 2026-09-16
OpenRouter has listed Union Alpha, a stealth model from an anonymous third-party provider, aimed at research, coding, and agentic workflows.
- Free to use, 262K context window, tool calling support
- Claims frontier-level general-purpose performance
- Multimodal; OpenRouter only routes requests, the provider may retain prompts and completions (stated not for training)
Stealth listings like this are typically anonymous pre-release tests by a new player. Identity unknown.
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