ChatGPT
A versatile AI chatbot that assists with writing, coding, research, and daily productivity tasks.
ChatGPT is a leading AI chatbot developed by OpenAI, offering capabilities for generating human-like text, assisting with coding, performing deep research, and creating images. As of May 2026, it utilizes the GPT-5.5 Instant model as its default, with more advanced GPT-5.5 and GPT-5.5 Pro models available for paid subscribers, providing enhanced accuracy, conciseness, and contextual understanding.
ChatGPT remains the undisputed leader in conversational AI with 400 million weekly active users as of March 2026 and the advanced GPT-5.5 models, though traffic appears lower than expected in the data. The massive $180B funding and continuous innovation with GPT-5.4 launch solidify its market-defining position, though increased competition from Claude and others prevents a perfect score.
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Compare ChatGPT
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