Ox Alpha (stealth)
Cloaked reasoning model on OpenRouter for coding and agentic work, 1M context; revealed as Z.ai's GLM-5.3-Flash.
Ox Alpha is a reasoning model designed for coding, sustained agentic work, and production workloads. 1,048,576 token context window.
Source
Ox Alphaopenrouter.ai · published
Revealed as
This stealth model was developed and operated by ZAI, revealed to be ZAI GLM-5.3-Flash.