Cleanlab
Cleanlab helps teams build safer AI agents by preventing incorrect responses from reaching users. Detect and remediate incorrect responses from any AI
AI promises unprecedented impact, but only if every response is safe, accurate, and compliant. At Cleanlab, we’re a team of engineers, researchers, and builders focused on making Generative AI as reliable as traditional software. We help organizations confidently put AI into production and earn trust through every interaction. Cleanlab solves the biggest challenge in AI agents: reliability. Our platform equips your team with the tools to make agents production-ready, detecting low-quality outputs, identifying root causes, improving response quality, and applying guardrails to ensure safe, accurate, and compliant performance at scale. At the heart of our mission is a commitment to building not just great technology, but a great team. These values guide how we think, how we act, and how we work. Care about your work, team, customers, and yourself. Ask good questions to unveil a simpler or faster approach. Stay open to better ideas. Humility unlocks progress. Build a culture where truth matters more than ego. Be honest about our work and the value that we deliver. Be accountable to ourselves, our customers, and the world. Speak with purpose, Provide evidence, clarity, and insight. Step into our customers’ shoes for better products. Teamwork. We build based on real customer needs, not on AI hype or trends. The only metric that matters is: did we solve your problem? When others rely on you, show up for them with care and strength. Focus on what matters to deliver unmatched quality, ROI, and speed. Our founders have pioneered research in the field, earning over 20,000 citations and the IJCAI-JAIR 5-Year Test-of-Time Award. Prior to Cleanlab, our team helped enhance the reliability of Alexa, Siri, Google Assistant, Oculus VR, and AWS. Backed by top investors—including Menlo, TQ, Bain, Databricks, Samsung, and the founders of GitHub, Okta, Mosaic, and Yahoo—Cleanlab is defining the future of AI reliability. Built Amazon Web Services' AutoML service used by thousands of companies. 30,000+ stars across GitHub projects. ICML best paper winner. Cleanlab is recognized as a leading solution for reliable AI.
Promptfoo
The AI Security Platform that catches vulnerabilities in development. Trusted by 127 of the Fortune 500 and 300,000+ developers worldwide.
Based on the limited social mentions available, users view Promptfoo as a comprehensive open-source tool that combines LLM performance evaluation and security red-teaming capabilities in a single CLI interface. The tool appears to have gained significant credibility after being acquired by OpenAI in March 2026, which users seem to view as validation of its effectiveness. There's notable interest from the developer community, particularly in Korean markets, suggesting it's gaining traction among AI practitioners. However, with only social mentions and no detailed user reviews available, it's difficult to assess specific user complaints or detailed pricing sentiment.
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