OpenAI reboots ChatGPT experience with GPT-5.1 after mixed reviews of GPT-5

VentureBeat — AI•Wednesday, November 12, 2025 at 5:00:00 AM

OpenAI's recent upgrade of ChatGPT from GPT-5 to GPT-5.1 marks a significant enhancement in AI interaction. The introduction of GPT-5.1 Instant, the default model, and GPT-5.1 Thinking, an advanced reasoning model, reflects OpenAI's commitment to improving user experience. Both models are designed to be faster and more engaging, addressing user feedback that highlighted the need for AI to be not only smart but also enjoyable to converse with. This upgrade allows users to shape the tone of their interactions, further personalizing the experience. By rolling out these models across various user tiers, OpenAI aims to cater to a broader audience, ensuring that the advancements in AI technology are accessible and beneficial to all.

— via World Pulse Now AI Editorial System

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