Community unmasks stealth model Union Alpha as Unbiased's Pareto 26.9 in one day
gaganghotra_ · x · 2026-09-18
Union Alpha, the stealth model quietly available on OpenRouter, OpenCode and Cloudflare, was identified by community detective work within a day. Its makers confirmed it is Pareto 26.9 from The Unbiased Company, ending the stealth period early due to demand.
- Positioned as a multimodal composite model for research, coding, and agentic workflows with frontier-level general performance
- Priced at $2.50 / $7.50 per 1M tokens with a 262K context window
- Hosted by a single provider (Unbiased), with OpenRouter forwarding requests directly
Related event: Mystery Model Union Alpha Unmasked as Pareto 26.9 Within a Day(2 posts)→
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