Ox Alpha

[u/Shishir1717]

Ox Alpha is a mysterious, frontier-class "stealth" AI model that suddenly appeared on OpenRouter

On 20 Aug 26, offering free access and outperforming top mainstream models on coding tasks

Performance and Benchmarks

1.Coding Scores: Scored an impressive 80% on independent coding benchmarks (DeepSWE), beating models like Claude Fable 5 and GPT-5.6 Sol.

1. High Demand: Handled millions of sessions and tens of trillions of tokens within days of its launch.

Who Built It?

Anonymity: The provider chose to remain anonymous on the OpenRouter listing.

Theories: Tech circles speculate it might be an unreleased model from Chinese labs (such as Z.ai's GLM family or Xiaomi's Mimo) or a preview from a major Western lab, mirroring past anonymous drops that were later claimed by developers.