ChatGPT
OpenAI's conversational assistant, launched November 30, 2022, which ignited the global generative AI wave — now powered by GPT-5 with agentic capabilities.
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Baidu's conversational assistant released March 16, 2023 — China's first publicly launched ChatGPT-style product, built on the ERNIE models.
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Claude
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Microsoft's unified AI assistant since November 2023, spanning Windows, Edge and Microsoft 365.