depthfirst develops an AI-native security platform called General Security Intelligence that reasons across code, infrastructure, and business logic to identify complex vulnerabilities and provide ready-to-merge fixes. The company introduced dfs-mini1, a security-focused model initially trained to secure cryptocurrency smart contracts and post-trained via reinforcement learning in security-specific environments. depthfirst reported that dfs-mini1 outperformed frontier models on OpenAI EVMBench while operating at 10x to 30x lower cost and that its approach appears to generalize to other security tasks. Since making products generally available in late 2025, depthfirst has partnered with customers including ClickUp, Lovable, Supabase, incident.io, and Moveworks. The platform has demonstrated strong developer adoption metrics, with 80% of its fix recommendations accepted and merged. depthfirst plans to use new funding to train more specialized models, grow its AI research team, and accelerate enterprise adoption.

Total raised

$120M

Funding rounds

2

Latest round

Series B

Latest activity

Mar 2026