OpenAI acquires Promptfoo to stress-test AI agents before bad actors do
OpenAI is acquiring Promptfoo, a San Francisco-based AI security startup, in a move that signals how seriously the company is taking enterprise trust as it pushes deeper into agentic AI. The deal brings Promptfoo’s red-teaming and vulnerability-testing technology directly into OpenAI Frontier—its platform for deploying AI agents in corporate environments. Terms were not disclosed.The acquisition…