OpenAI Reports 400 Million Weekly Users as GPT-5 Development Advances

The company sees surging enterprise adoption and prepares to release its next-generation AI model amid intensifying competition.

OpenAI's ChatGPT has reached 400 million weekly active users, marking a 33% increase since December 2024.
Enterprise adoption has doubled in six months, with over 2 million businesses now using ChatGPT for tasks like customer service, report generation, and decision-making.
OpenAI is preparing to launch GPT-4.5 and GPT-5, with plans to unify conversational and reasoning capabilities in a single model, though specific release dates remain unconfirmed.
Competitors like Elon Musk's xAI and China's DeepSeek are challenging OpenAI's dominance with new, high-performing AI models and alternative pricing strategies.
OpenAI's expansion includes a $3 billion joint venture with SoftBank in Japan and its first U.S. federal agency customer, USAID, signaling growing global and public-sector adoption.