TechRadar OpenAI’s flagship chatbot, ChatGPT, now serves hundreds of millions of users, a scale that drives massive compute and energy expenses. To sustain the service, the company has shifted from its original nonprofit model to a capped‑profit structure backed by investors such as Microsoft, SoftBank and Nvidia. While subscription tiers like ChatGPT Plus, Pro, and Go generate revenue, the costs remain high, prompting OpenAI to introduce advertising for free and low‑cost users. The move reflects a broader effort to balance infrastructure demands with affordable access as generative AI becomes a mainstream tool.
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