Ramp AI Index March 2026: Anthropic Adoption Hits 24.4% of All Businesses — Up from 4% One Year Ago

Ramp Velocity·high signal

Ramp's March 2026 AI Index shows Anthropic now used by nearly 1 in 4 businesses on the platform, with month-over-month growth of 4.9% — its largest monthly gain since tracking began. AI infrastructure spending grew 100% quarter-over-quarter while foundation model spend grew 126%, reflecting the shift from prototype to production agent workloads. Granola (meeting notes) and ElevenLabs (AI voice for customer service) are breakout growth vendors, indicating consolidation around AI-native tools replacing bolt-on features.