Goodfire Deploys Probe-Based Cyber Monitors for Kimi K3 and GLM 5.3

Goodfire on October 8, 2026 published Training and Deploying Production Cyber Monitors on Kimi K3, a research post describing cybersecurity monitors for the Kimi K3 and GLM 5.3 open models that the company has deployed on a production inference stack. Goodfire reports that the monitors match an LLM judge's recall at the company's operating point while costing roughly 50 times less. The post's core contributors are Ekdeep Singh Lubana, Connor Watts, Siddharth Boppana, Dron Hazra, and Vasudev…

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