Mysterious OxAlpha model debuts with 1M context and free access

APPSO · wechat · 2026-08-22

APPSO reports on the mysterious anonymous model OxAlpha on OpenRouter. It features a 1M context window, supports image and video inputs, and is currently free. While an investigation via Claude Code failed to reveal its identity, community speculation and testing suggest it might be an upgrade to GLM or MiMo. In small-sample coding tests, it outperformed Claude Fable5 and GPT-5.6 Sol. It is accessible via OpenRouter and OpenCode Zen, though users should note data retention policies.

Related event: Stealth model Ox Alpha sparks frenzy; fingerprints point to GLM-5.3(55 posts)→

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