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New Delhi: OpenAI has launched a major update to ChatGPT with the release of GPT-5.1, bringing smarter responses and more personalised conversations. The update includes two improved models, GPT-5.1 Instant and GPT-5.1 Thinking, designed to make ChatGPT more helpful, natural, and adaptive.

What’s New in GPT-5.1

GPT-5.1 Instant, the most-used model, is now warmer and more conversational. It responds faster and can now decide when to “think” more deeply before answering tough questions. This helps it give better answers for complex tasks like math and coding, while still being quick on simple ones.

GPT-5.1 Thinking is built for advanced reasoning. It now adjusts its thinking time based on the difficulty of the question, spendin

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