TL;DR
- ChatGPT now serves approximately 800 million weekly active users, more than doubling since early 2025 (source).
- OpenAI is now using Google Cloud TPUs alongside Nvidia chips.
- Key 2025 launches include the o3-pro reasoning model, advanced voice features, Sora (text-to-video), and cloud integrations with platforms like Google Drive and Box.
ChatGPT Weekly Active Users (WAU)
| Date | Weekly Active Users | Source |
| Nov 2023 | 100 million | TechCrunch |
| Aug 2024 | 200 million | Similarweb |
| Dec 2024 | 300 million | AboutChromebooks |
| Feb 2025 | 400 million | ZDNet |
| June 2025 | 800 million | AboutChromebooks |
OpenAI Begins Using Google TPUs
OpenAI has begun using Google’s AI chips to support the scaling of ChatGPT, alongside its continued use of Nvidia GPUs. This is the first large-scale use of non-Nvidia infrastructure by OpenAI.
However, OpenAI clarified that it has no plans to broadly deploy Google TPUs across its full stack, confirming Nvidia remains its core provider.
Major Product Updates in 2025
- o3-pro model: Advanced reasoning AI now available for ChatGPT Pro and API users.
- Conversational voice upgrade: Natural tone interaction now live across paid tiers.
- Sora: OpenAI’s text-to-video model released in beta.
- App integrations: New connectors for Google Drive, Box, and other productivity tools.
- Meeting recording: ChatGPT can now record, summarize, and link conversations for business users.
Sustainability and Power Use
OpenAI revealed that each ChatGPT query consumes the energy to power a lightbulb for a few minutes, and roughly one-fifteenth of a teaspoon of water, according to Business Insider.
Voice Mode and Customization
With its Advanced Voice Mode, ChatGPT now supports near real-time voice conversations and multilingual translations. These updates are part of OpenAI’s effort to evolve ChatGPT from a chatbot into an interactive personal assistant.
Developer Tools and Enterprise Rollouts
- OpenAI introduced Flex Processing, a cost-saving feature for asynchronous workloads.
- The company rolled out GitHub integration in beta for developers using ChatGPT Deep Research.
- It launched Codex, a new AI coding agent optimized for software engineering.
Global Expansion & Regulations
OpenAI introduced a data residency program across Asia, after launching a similar initiative in Europe earlier this year. These efforts are part of its broader OpenAI for Countries initiative, which supports AI infrastructure in collaboration with governments worldwide.
What’s Next?
- OpenAI aims to make ChatGPT more personalized by tracking personal life context, according to Sam Altman.
- The company is also reportedly building a social network to rival X and Threads.
- GPT-4.5 will be removed from the API in July, replaced by GPT-4.1 and its variants.
