OpenAI announced that it has surpassed 1 million business customers globally, calling it “the fastest-growing business platform in history.” The milestone includes organisations that pay for ChatGPT for Work and those that use OpenAI’s developer platform for direct access to its models.
According to the company, businesses such as Amgen, Commonwealth Bank, Booking.com, Cisco, Lowe’s, Morgan Stanley, T-Mobile, Target, and Thermo Fisher Scientific are among its active enterprise customers.
“Our enterprise momentum is fueled in part by consumer adoption,” OpenAI said in a statement. The company noted that ChatGPT now has over 800 million weekly users, which it said helps businesses realise return on investment faster. ChatGPT for Work has crossed 7 million seats, marking a 40% increase in two months, while ChatGPT Enterprise seats have grown ninefold year-over-year.
To support this growth, OpenAI introduced several new tools and integrations aimed at enterprise deployment. These include Company Knowledge, which allows ChatGPT to access and analyse data across platforms like Slack, SharePoint, Google Drive, and GitHub using GPT-5. The company said its Codex model for code generation and workflow automation has seen a tenfold increase in use since August, with Cisco reporting 50% faster code reviews.
OpenAI also launched AgentKit, a framework for teams to develop and deploy AI agents. Carlyle, a global investment firm, used the tool to cut development time on its due diligence framework by over 50%, the company said.
OpenAI’s recent updates also include advancements in multimodal capabilities, such as image, video, and voice support through the Image Generation API, Sora 2, and Realtime API.
The company cited research from Wharton showing that 75% of enterprises report a positive ROI from AI adoption, while fewer than 5% report negative returns. “When AI is deployed with the right use case and infrastructure, teams see real results,” OpenAI stated.
Looking ahead, OpenAI said more companies are building directly on its platform. Canva, Figma, Zillow, Spotify, Shopify, and others are integrating their applications into ChatGPT.
Retailers like Walmart, PayPal, and Etsy are using the new Agentic Commerce Protocol to create conversational shopping experiences within ChatGPT.
“We’re deeply grateful to the customers building with us today—and we’re looking forward to what’s next in 2026 and beyond,” OpenAI said. “There’s a big opportunity to rethink the operating system for work, and we’re excited to build the platform to power it.”
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