CrowdStrike fine-tunes Nemotron 3 for security triage; Cyber Defense Benchmark shows zero passes
joshua_saxe · x · 2026-09-02
CrowdStrike fine-tuned the NVIDIA Nemotron 3 Nano 30B-A3B model into a reasoning-enabled detection-triage classifier using prompt optimization, self-training, and RLVR. It takes Windows endpoint context (process lineage, ATT&CK mappings, etc.) as input and outputs analyst-assigned labels for local deployment.
A related "Cyber Defense Benchmark" testing 25 LLMs revealed that zero models passed the agentic investigation test using real attack telemetry. The top scorer (Opus 5) achieved a coverage score of just 0.451.
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