Nov 2022: Launch
ChatGPT released with GPT-3.5 model
Jan 2023: Rapid Growth
Fastest-growing consumer app in history
100M
monthly active users
Mar 2023: GPT-4 Released
Enhanced complexity handling and accuracy
↑50%
data processing capacity
Apr 2025: GPT-4o & o4-mini
Handles 25,000 word inputs, real-time voice
200M+
users contributing data