Mystery model Union Alpha on OpenRouter claims Claude Fable 5.1-level at 10x cheaper
Yuchenj_UW · x · 2026-09-17
A mystery model called Union Alpha has appeared on OpenRouter, with early users claiming it performs at Claude Fable 5.1 level while costing over 10x less. Its identity is unconfirmed, and observers are hoping it gets open-sourced.
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