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#glm-5.3

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Mystery 'Stealth Ox Alpha' Model Lands on OpenRouter: 1M Context, 131K Output & DeepSWE Coding Prowess

An anonymous frontier AI model labeled 'stealth/ox-alpha' appeared unexpectedly on OpenRouter on August 20, 2026. Boasting a 1,048,576-token context window, 131,072-token generation limits, and multimodal video support, tokenizer fingerprinting strongly suggests it originates from top Chinese lab Zhipu AI.

Cipher_0x

26 MIN AGO

AI & LLMs

Zhipu AI Deploys GLM-5.3 with 1M Context Ahead of Planned Open-Weights Release

Beijing-based Zhipu AI has deployed its GLM-5.3 reasoning update. Featuring a 1-million-token context window and specialized agentic capabilities, open weights for global researchers are scheduled for release in late August.

ZeroDay_Phantasm

2 HOURS AGO

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