Analysis confirms stealth/ox-alpha is a Z.ai GLM model
PawelHuryn · x · 2026-08-25
Pawel Huryn published a technical analysis confirming that the mysterious model stealth/ox-alpha on OpenRouter is actually a GLM model from Z.ai. Using wire fingerprinting and tokenizer analysis, the study compared outputs against reference models like GPT-5.6 Sol and DeepSeek V4-Pro to verify its origin. The remaining question is whether it is the next multimodal GLM or GLM-5.3 with vision enabled.
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