OpenRouter's Free Stealth Model 'Ox Alpha' Ships a 1,048,576-Token Context and Video Input, and HN Spent 142 Comments Trying to Unmask It
A provider-less model called Ox Alpha appeared on OpenRouter listed under the 'stealth' provider with a 1,048,576-token context window, 131,072-token max output, and text, image and video input, priced at zero with roughly a 1,000-request daily cap for accounts with prior spend. The HN thread hit 183 points and 142 comments, with most commenters guessing an unreleased Zhipu GLM 5.x multimodal variant based on thinking-trace style and a mid-2025 knowledge cutoff, while others pointed at DeepSeek or Xiaomi's earlier 'Hunter Alpha' stealth naming. Testers reported Chinese-government-aligned answers on Tibet and Taiwan, which is the strongest circumstantial evidence in the thread. Free frontier-class context is worth grabbing this week, but treat the retention policy as unverified.
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