Press Center
Resources and information for media coverage of Promptfoo
About Promptfoo
Promptfoo is a leading provider of AI security solutions, helping developers and enterprises build secure, reliable AI applications. Based in San Francisco, California, Promptfoo is backed by Andreessen Horowitz and top leaders in the technology and security industries.
Our core product is an open-source pentesting and evaluation framework used by tens of thousands of developers. Promptfoo is among the most popular evaluation frameworks and is the first product to adapt AI-specific pentesting techniques to your application.
Recent Coverage
DeepSeek AI Censorship Research
January 2025
Our groundbreaking research on AI censorship and content filtering in DeepSeek models has been widely covered by major technology and news publications.
Featured Podcasts
Securing AI by Democratizing Red Teams
a16z Podcast • August 2, 2024
a16z General Partner Anjney Midha speaks with Promptfoo founder and CEO Ian Webster about the importance of red-teaming for AI safety and security, and how bringing those capabilities to more organizations will lead to safer, more predictable generative AI applications.
Listen to episode →The Future of AI Security
CyberBytes with Steffen Foley • December 5, 2024
A deep dive into Ian's evolution from shipping Gen AI products as an engineer to launching a cybersecurity company, the fascinating origin of Promptfoo, and key insights on the latest AI security trends.
Listen on Spotify →Educational Resources
Leading AI platforms have integrated Promptfoo into their official educational materials, recognizing it as an essential tool for LLM application development, evaluation, and security. These courses and workshops, developed in partnership with industry leaders, provide comprehensive training on building reliable AI applications.
OpenAI Build Hour: Prompt Testing & Evaluation
OpenAI • 2024
Featured in OpenAI's Build Hour series, where they highlight that "Promptfoo is really powerful because you can iterate on prompts, configure tests in YAML, and view everything locally... it's faster and more straightforward."
Anthropic Prompt Evaluations Course
Anthropic • 2024
A comprehensive nine-lesson course covering everything from basic evaluations to advanced model-graded techniques. Anthropic notes that "Promptfoo offers a streamlined, out-of-the-box solution that can significantly reduce the time and effort required for comprehensive prompt testing."
AWS Workshop Studio: Mastering LLM Evaluation
Amazon Web Services • 2025
A comprehensive workshop designed to equip you with the knowledge and practical skills needed to effectively evaluate and improve Large Language Model (LLM) applications using Amazon Bedrock and Promptfoo. The course covers everything from basic setup to advanced evaluation techniques.
Move to the Best LLM Model for Your App
IBM Skills Network • 2024
A hands-on guided project that teaches developers how to master model selection using Promptfoo. Learn to adapt to new models, handle pricing changes effectively, and perform regression testing through practical scenarios.
Technical Content & Guides
Does your LLM thing work? (& how we use promptfoo)
Semgrep Engineering Blog • September 6, 2024
A detailed blog post by Semgrep's AI team explains their approach to evaluating LLM features and why they adopted Promptfoo as part of their workflow.
Read article →Brand Assets
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Quick Facts
Founded
2024
Headquarters
San Francisco, California
Leadership
Ian Webster, CEO & Co-founder
Michael D'Angelo, CTO & Co-founder
Investors
Andreessen Horowitz and industry leaders