Ox Alpha

#3 in Multimodal Models

Zhipu Ai · alpha · 15× · last seen Aug 25, 2026

91

Momentum

Ox Alpha is an anonymous "stealth" AI model that appeared on August 20, 2026 under the provider name "stealth" on OpenRouter and the coding agent OpenCode. The developer remains officially unknown; community analyses suspect a connection to Zhipu AI/GLM, which however has not been confirmed. The model offers a context window of approximately 1 million Token, processes text, image, and video, and is available during the free preview phase via the OpenRouter API as well as OpenCode, Cline, and Hermes Agent. It is not an Open Source model; weights have not been published, and access is exclusively through a hosted API.

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