OpenAI has officially launched GPT-5.1, featuring significant upgrades to its ChatGPT models—GPT-5.1 Instant and GPT-5.1 Thinking. This rollout, beginning with paid users, focuses on enhancing user experience by introducing customizable tone and communication styles. The GPT-5.1 Instant model, now more refined, adopts a warmer conversational tone, encouraging engaging interactions that combine expressiveness with clarity. Early feedback highlights its playful nature, ideal for quick answers and creative tasks. In contrast, GPT-5.1 Thinking emphasizes advanced reasoning, offering clearer insights into its thought processes for complex problems. Its enhancements, including faster performance and improved persistence in logic, make it suitable for coding, analytical problem-solving, and research assistance. Collectively, these models reflect OpenAI’s commitment to creating adaptable, emotionally intelligent AI solutions. The ongoing customization tools empower users to tailor their ChatGPT interactions, aligning with diverse communication preferences and enhancing overall usability.
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