State of Open Source Spring 2026: 13M users, 2M models, robotics datasets surge 23×

Hugging Face hit 13M users, 2M public models and 500K+ datasets, with robotics the fastest-growing community — datasets jumped from 1,145 in 2024 to 26,991 in 2025. The company still has $200M of its $400M raise in the bank, and Mistral Medium 3.5's open weights landed on the Hub the same week.