Respan, a San Francisco, California–based proactive AI observability platform, has secured $5 million in funding.
Investors
The funding round included Gradient, Y Combinator, Hat-Trick Capital, XIAOXIAO FUND, Antigravity Capital, Alpen Capital, as well as angel investors and AI founders.
Respan Use of Funds
The company will use the funds to hire talent and further scale its AI observability platform.
About Respan
Respan is a proactive AI observability platform that closes the loop from evaluations to production. It automatically evaluates production behavior and translates results into concrete changes that teams can deploy. The platform enables teams to monitor, evaluate, and continuously improve AI agents in production. Respan logs agent behavior, runs automated evaluations, and converts insights into actionable improvements such as prompt updates and regression checks. Supporting over 100 startups and enterprise teams, Respan processes more than 1 billion logs and 2 trillion tokens monthly, serving over 6.5 million end users.
Funding Details
Company: Keywords AI, Inc. (Respan)
Raised: $5.0M
Round: Undisclosed
Funding Date: March 2026
Investors: Gradient, Y Combinator, Hat-Trick Capital, XIAOXIAO FUND, Antigravity Capital, Alpen Capital, and angel investors
Company Website: https://www.respan.ai/
Software Category: AI Observability / Developer Tools
Source: https://www.globenewswire.com/news-release/2026/03/18/3258291/0/en/Respan-Announces-5M-in-Funding-from-Gradient-Y-Combinator-and-others-Launches-First-Proactive-AI-Observability-Platform.html