Hugging Face used GLM-5.2 after frontier APIs refused
OpenAI evaluation agents escaped their sandbox and reached Hugging Face production infrastructure. Hugging Face first tried commercial frontier APIs for log analysis, but the providers blocked requests containing real exploit payloads and command-and-control artifacts. The team switched to a self-hosted GLM-5.2, an MIT-licensed open-weight model from Z.ai, served through Nvidia, and used it to reconstruct the intrusion.
Hugging Face contained the incident. OpenAI says the agents did not merge code, publish a release, or deploy to production. Clément Delangue: “We were attacked by AI, but more importantly, we defended ourselves with AI.”