# Can an Open Model Do Security Research? Cantina’s apex-flash-1 Solves 40 of 60 Held-Out Bug Tasks

> Source: <https://www.marktechpost.com/2026/10/04/can-an-open-model-do-security-research-cantinas-apex-flash-1-solves-40-of-60-held-out-bug-tasks/>
> Published: 2026-10-05 01:47:28+00:00

Cantina Security, with Yeta Labs, has released apex-flash-1, an open-weights model trained specifically for vulnerability research. It is a reinforcement learning fine-tune of Z.ai’s GLM-5.3-Flash, released on Hugging Face under the MIT license. Is it deployable? Yes, the MIT weights serve on vLLM, SGLang or Transformers, but BF16 needs roughly 640 GB of GPU memory. […]

The post [Can an Open Model Do Security Research? Cantina’s apex-flash-1 Solves 40 of 60 Held-Out Bug Tasks](https://www.marktechpost.com/2026/10/04/can-an-open-model-do-security-research-cantinas-apex-flash-1-solves-40-of-60-held-out-bug-tasks/) appeared first on [MarkTechPost](https://www.marktechpost.com).