Z.ai confirms Ox Alpha is GLM-5.3 Flash, open weights tonight
Z.ai confirmed the stealth OpenRouter model Ox Alpha is GLM-5.3 Flash and will release its weights tonight. The multimodal model has a 1M token context window, 128K max output, and is now available on Vercel's AI Gateway.
How this story unfolded
5 days · 6 reports · 28 community posts · 34 of 39 shown
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China’s Z.AI Made Ox Alpha Stealth Model That Rivals DeepSeekbloomberg.com
Surprise: Z.ai is the AI lab behind the mysterious Ox Alpha modeltechcrunch.com
zai-org/GLM-5.3-Flashhuggingface.co
GLM 5.3 Flash now available on AI Gatewayvercel.com
Z.ai’s GLM-5.3 Flash is cheap, good, and served on Chinese chipsthenewstack.io
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