
Manus is a general-purpose AI agent that carries out multi-step tasks on a user's behalf, built by Butterfly Effect, a company developed in China that moved its staff and headquarters to Singapore in mid-2025 after raising money from US investors. Launched in early 2025, it went viral after a demo and reached about $100 million in annualised revenue within roughly eight months, with revenue reported at $400 million to $500 million by June 2026. Meta agreed to acquire it for a reported $2 billion-plus in December 2025, but China's National Development and Reform Commission prohibited foreign in