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DeepSeek

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Thursday, 3 September 2026

GLM-5.3’s Exploits, AI Models and Hardware Speed Up, DeepSeek’s New Agent Harness

The Batch 42

Z.ai announced GLM-5.3 after improving its predecessor GLM-5.2 to raise coding and agentic performance and to gain cybersecurity strength via additional safety testing. GLM-5.3 scored 84.5% on the CyberGym exploit-detection benchmark. Subscriptions and API pricing were set for the rollout, with weights expected about two weeks after launch and a license not yet announced.

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