Join our daily and weekly newsletters for the latest updates and exclusive content on industry-leading AI coverage. Learn MoreOpenAI’s ChatGPT has surpassed 400 million weekly active users, a milestone that underscores the company’s growing reach across both consumer and enterprise markets, according to an X.com post from Chief Operating Officer Brad Lightcap on Thursday.The rapid expansion comes as OpenAI faces intensifying competition from rivals such as Elon Musk’s xAI and China’s DeepSeek, both of which have recently launched high-performing models aimed at disrupting OpenAI’s dominance. Despite this, OpenAI has seen significant traction in the business sector, with more than two million enterprise users now leveraging ChatGPT at work—doubling from September 2024.“ChatGPT recently crossed 400M WAU, we feel very fortunate to serve 5% of the world every week,” Lightcap wrote. He also noted that usage of OpenAI’s reasoning model API has surged fivefold since the launch of its o3 Mini model, which is designed to enhance logical inference and structured problem-solving capabilities.chatgpt recently crossed 400M WAU, we feel very fortunate to serve 5% of the world every week2M+ business users now use chatgpt at work, and reasoning model API use is up 5x since o3 mini launchwe'll bring GPT-4.5 and GPT-5 to chat and the API soon, with unlimited GPT-5 for… https://t.co/7hfyUcIyBW — Brad Lightcap (@bradlightcap) February 20, 2025AI is reshaping the workplace: 2 million businesses now rely on ChatGPTThe surge in enterprise adoption represents a crucial validation of OpenAI’s strategy to position ChatGPT as not just a chatbot for casual queries, but as a serious productivity tool for businesses. Companies such as Morgan Stanley, Uber, and T-Mobile have integrated OpenAI’s models into their workflows, using AI to generate reports, automate customer service, and streamline decision-making.Notably, OpenAI’s progress comes amid heightened scrutiny over the role of generative AI in business-critical applications. The company recently secured its first federal agency customer, USAID, which is deploying ChatGPT Enterprise to reduce administrative burdens and streamline partnerships, according to FedScoop

Social platform X reportedly doubled or nearly doubled the prices of its top subscription plan, Premium+, in different markets.The Elon Musk-owned company increased the monthly price of Premium+ in the United States from $22 to $40, in the United Kingdom from 17 pounds to 35 pounds, and in European countries from 21 euros to 38 euros, TechCrunch reported Wednesday (Feb. 19).The pricing is not consistent, as there were different prices on a support page and the checkout page, per the report.The price increases at X came hours after xAI, which is also owned by Musk, released Grok 3, the latest version of its AI model, according to the report. A Premium+ subscription offers access to that AI model.An X help center page about premium subscriptions said the Premium+ price increased Tuesday (Feb. 18), with prices varying by location, applicable taxes and payment method fees.Premium+ includes the features of the other subscription tiers, plus additional ones like higher limits on Grok, no ads anywhere on X, largest reply prioritization, Radar Search and Articles, the page said.It was reported Wednesday that X is in discussions to raise money from investors at a $44 billion valuation, which is the same price Musk paid for the social media platform then called Twitter in 2022.In January, it was reported that Amazon and Apple were considering increasing their ad spending on X. Amazon had pulled much of its advertising from the platform more than a year earlier, while Apple had pulled all of its ad dollars from there in late 2023.Musk reposted a post about The Wall Street Journal article that reported these increases on Jan. 30, commenting: “Much appreciated.”Also in January, X announced that Visa is its first partner for the X Money Account that will debut later this year.The partnership will allow “secure + instant funding” to an X Wallet via Visa Direct, will connect to the user’s debit card to allow peer-to-peer (P2P) payments, and will give users the option to instantly transfer money to their bank accounts, X CEO Linda Yaccarino said in a Jan