Stealth model Union Alpha appears on OpenRouter: multimodal, 256K context, frontier-level claims
FlunkyGraphics · reddit · 2026-09-16
A new stealth model, Union Alpha, has appeared on OpenRouter and OpenCode, free to use. It claims:
- Multimodal capabilities
- 256K context window
- "Frontier-level general-purpose performance"
The poster speculates it could be from Kimi or another lab and asks the community for guesses. Stealth models are a common way for AI labs to gather blind feedback before an official release.
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