Cantina Security

Apex Flash 1

Cantina Security

Apex Flash 1 is Cantina Security and Yeta’s reinforcement-learning post-training of GLM-5.3 Flash for focused software security investigations. It reads code, emits tool calls, investigates vulnerabilities, and verifies results in running targets. MIT-licensed weights are available, retaining the base model’s image-text architecture, although published evaluations cover text-based security tasks only. It is intended as a focused worker inside an agent harness. The standard checkpoint and an experimental abliterated derivative are distinguished; reported evaluation results apply to the standard checkpoint.