Resolve AI, a startup building an autonomous site reliability engineer (SRE) that automatically manages and maintains software systems, has raised a Series A funding round led by Lightspeed Venture Partners, according to three people familiar with the transaction.
The fresh round carries a headline valuation of $1 billion, sources said. However, the company’s blended valuation is lower due to a multi-tranched deal structure. Under this arrangement, investors bought part of the equity at a $1 billion valuation while acquiring the remaining portion—likely the larger share of the round—at a lower price. Notably, investors say this structure has recently gained traction among highly sought-after AI startups.
Meanwhile, two sources said Resolve AI’s annual recurring revenue (ARR) stands at roughly $4 million. However, the exact size of the funding round could not be determined. Resolve AI and Lightspeed Venture Partners did not respond to requests for comment.
Founded less than two years ago, Resolve AI is led by former Splunk executive Spiros Xanthos and Mayank Agarwal, who previously served as Splunk’s chief architect for observability. Importantly, the founders’ partnership spans more than two decades, dating back to their graduate studies at the University of Illinois Urbana-Champaign. This is not their first venture together; earlier, they co-founded Omnition, which Splunk acquired in 2019.
Traditionally, human SREs manually troubleshoot and resolve system failures. In contrast, Resolve AI automates this workflow by autonomously detecting, diagnosing, and fixing production issues in real time.
As software systems grow increasingly complex and distributed across cloud environments, companies continue to struggle with hiring and retaining skilled SRE talent. Consequently, automating reliability engineering tasks helps reduce downtime, cut operational costs, and allow engineering teams to focus on building new features instead of constantly responding to production incidents.
Previously, in October, Resolve AI raised a $35 million seed round led by Greylock, with participation from World Labs founder Fei-Fei Li and Google DeepMind scientist Jeff Dean.











