OpenAI (OPENAI) revealed plans today to acquire Promptfoo, a startup that helps enterprises identify and correct vulnerabilities during the development of artificial intelligence systems. Promptfoo ...

Founded in 2024, Promptfoo began as an open-source framework for evaluating AI prompts and model behavior. It later expanded into a commercial platform used by developers and enterprise security teams ...

Promptfoo raised $18.4 million in a Series A round in July 2025 led by Insight Partners with participation from Andreessen Horowitz, according to the company’s own announcement. Promptfoo said at the ...

OpenAI is acquiring Promptfoo, the AI red-teaming startup used by 125k developers and 30+ Fortune 500 firms, to strengthen ...

Promptfoo provides tools that help companies identify vulnerabilities in AI systems during development, including issues such as prompt injections, data leaks and misuse of connected tools. Its ...

Investing.com -- OpenAI announced plans to acquire Promptfoo, an AI security platform that helps enterprises identify and fix vulnerabilities in AI systems during development. The company said it will ...

The AI startup said Promptfoo’s technology will be integrated into OpenAI Frontier, its platform designed for building and operating “AI ...

GPT-5.4 expands the context window to 1 million tokens; the larger limit supports longer coding and research sessions.

OpenAI’s internal AI data agent searches 600 petabytes across 70,000 datasets, saving hours per query and offering a blueprint for enterprise AI agents.

OpenAI's image gen model, which is available via ChatGPT for free, now lets you easily create AI images even if you're not familiar with trends or prompt engineering. Right now, if you want to create ...

OpenAI unveiled its Atlas AI browser this week, and it’s already catching heat. Cybersecurity researchers are particularly alarmed by its integrated “agent mode,” currently limited to paying ...