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ChatGPT

ChatGPT is an AI chatbot developed by OpenAI, built on the company's GPT large language models and trained with reinforcement learning from human feedback . Since its launch in late 2022, it has become a phenomenon-level consumer application: it hit 1 million users within five days of release and, as of mid-2025, reported over 700 million weekly active users . Its user base has broadened from early tech adopters to a more gender-balanced, college-educated white-collar demographic, with core use cases concentrated in practical guidance, information lookup, and document writing—roughly 80% of conversations—while programming assistance has declined to about 5% . OpenAI has steadily expanded its capabilities, adding features like real-time video interaction, screen sharing, and integrated search, positioning it as a general-purpose AI assistant rather than a niche tool . The product has also become a reference point competitors measure themselves against, with rivals from DeepSeek to Perplexity AI to domestic alternatives like MiniMax's Hailuo AI explicitly targeting its market .

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