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OpenAI Launches GPT-5.1: Personalized Chatbot Experience Unveiled

11/13/2025

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Summary

Story summary

OpenAI, the AI research and development company, launched GPT-5.1 today, upgrading GPT-5 and introducing two models: GPT-5.1 Instant for warmer conversations and GPT-5.1 Thinking for enhanced reasoning.
OpenAI also introduced new personality presets to customize the chatbot's tone.
The rollout begins with paid subscribers, while legacy GPT-5 models remain available for three months.
The update aims to enhance user experience by making ChatGPT more personalized and responsive.

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Story summary

OpenAI, the AI research and development company, launched GPT-5.1 today, upgrading GPT-5 and introducing two models: GPT-5.1 Instant for warmer conversations and GPT-5.1 Thinking for enhanced reasoning.
OpenAI also introduced new personality presets to customize the chatbot's tone.
The rollout begins with paid subscribers, while legacy GPT-5 models remain available for three months.
The update aims to enhance user experience by making ChatGPT more personalized and responsive.