A nameless coding model just went free on OpenRouter for a week. It's called Union Alpha, and the builder stays unnamed. Cloaked drops like this are a common move for labs that want real usage before they put a name on the thing. The trade is fair enough, you get a working coding model for free through ~Sept 22 and the lab gets real repos thrown at it. It's a search away on OpenRouter. The zero data retention line is the one I'd pause on. Per the OpenRouter listing, prompts and code get…