ChatGPT tops 1.2 billion weekly active users
What happened
At its 2026 DevDay event on September 30, OpenAI said ChatGPT now has more than 1.2 billion weekly active users. The company also put combined weekly users of ChatGPT Work and Codex above 35 million, and said 2.5 million businesses use its products. OpenAI added that annualized revenue is approaching $70 billion. The Decoder and AI HOT reported the same figures for weekly users, ChatGPT Work and Codex, and enterprise customers.
Written by AI from the coverage · updated 2 hours ago
Story line
- Sep 29 · 8 reports · RoundupOpenAI DevDay 2026 roundup: Dots, GPT-6.1 Sol and 20-plus launches
- Sep 30 · 2 reports · This story
ChatGPT tops 1.2 billion weekly active users
Coverage
Follow the reports to see the story from different sides.
- AI HOT · IndustryOpenAI 宣布 ChatGPT 周活跃用户超 12 亿，ChatGPT Work 和 Codex 周用户超 3500 万
OpenAI 在 2026 开发者日活动上宣布，ChatGPT 每周活跃用户已超过 12 亿，ChatGPT Work 和 Codex 每周用户超过 3,500 万，使用 OpenAI 产品的企业数量达到 250 万家。
- The DecoderPickOpenAI says ChatGPT hits 1.2B weekly users, annualized revenue nears $70B
At DevDay, OpenAI disclosed that ChatGPT has more than 1.2 billion weekly active users. ChatGPT Work and Codex together top 35 million weekly actives, and 2.5 million businesses use its products.
Heat over time
Heat now 12·Comparable peak 20（Sep 30 03:00）·Comparable change over 24 hours –
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