Apex Flash 1
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.
2026-10
321.3B
Vision-language Mixture-of-Experts Transformer
MIT
Specifications
- Parameters
- 321.3B
- Architecture
- Vision-language Mixture-of-Experts Transformer
- License
- MIT
- Type
- multimodal
- Modalities
- textimage
Benchmark Scores
Advanced Specifications
- Model Family
- Apex
- Finetuned From
- GLM-5.3 Flash
- API Access
- Not Available
- Chat Interface
- Not Available
- Variants
- apex-flash-1apex-flash-1-abliterated (experimental, separate evaluation scope)
Capabilities & Limitations
- Capabilities
- security reasoningcode analysistool usevulnerability investigation
- Known Limitations
- Published evaluation covers only 60 tasks across 20 held-out casesImage and video behavior were not evaluatedRequires a harness and authorized test environment
- Notable Use Cases
- authorized vulnerability researchprivate security agentscode audits
- Tool Use Support
- Yes