Micro1 Raises $100M+ at $4B Valuation, 8x Jump From $500M Mark in September 2025
Summary
AI-training-data startup Micro1, run by 25-year-old Ali Ansari, has raised more than $100M at a $4B valuation, an eightfold jump from its $500M valuation in September 2025. The company now generates over $500M in annualized revenue and counts frontier AI labs, Microsoft, Amazon and robotics firm 1X as customers; two frontier labs and two xAI cofounders participated in the new round.
Originally reported by forbes.com
Read the original article →Original headline: Micro1 Raises $100M+ at $4B Valuation, 8x Jump From $500M Mark in September 2025