ChatGPT: AI Goes Mainstream
What Happened
OpenAI released ChatGPT, a conversational AI based on GPT-3.5 fine-tuned with RLHF (Reinforcement Learning from Human Feedback). It reached 1 million users in 5 days and 100 million in 2 months — the fastest-growing consumer application in history. People used it to write emails, debug code, brainstorm ideas, and a thousand other tasks.
Why It Mattered
The defining consumer moment of the modern AI era. ChatGPT didn't just introduce AI to the public — it made AI feel personal, useful, and immediate. It triggered a global AI investment boom and fundamentally changed how the world thought about technology, work, and machine intelligence.
Key People
Organizations
Part of the Generative AI Revolution (2022–2024) era · Browse all product launches · View all 2022 milestones