# Deeptune's $43M Bet: Agent Training Gyms Beat Static Datasets - Date: 2026-03-24 - Category: Agentics A new kind of AI infrastructure startup is raising serious money to solve a problem that benchmarks alone can't: how you actually train an agent to do real work. Deeptune has closed a $43 million Series A led by Andreessen Horowitz to build what it calls "training gyms" for AI agents — high-fide... ---