ChatGPT users sent 50% more messages six months after signing up
AI Summary- Epoch AI found deeper ChatGPT engagement among 5,000 sampled U.S. users from 2022 through 2025.
- 50% more messages were sent on average six months after ChatGPT signup, OpenAI reported.
- ChatGPT reached 35% weekly usage in Epoch AI’s December 2025 survey, ahead of competitors.