OpenAI Unveils GPT-5.1, Making ChatGPT Smarter, Faster, and More 'Conversational'

OpenAI has launched GPT-5.1, an upgraded version of its large language model series. This release introduces two models—GPT-5.1 Instant, which focuses on warmth and conversational ease, and GPT-5.1 Thinking, which emphasizes efficiency and depth. The Instant model features adaptive reasoning, allowing it to assess question complexity before responding, significantly improving performance in math and coding tasks. The Thinking model, on the other hand, adapts its processing time based on input complexity, speeding up responses for simpler queries while providing more thorough answers to complex ones. Additionally, the update provides users with enhanced control over the AI's personality and tone, including new preset options like Professional and Quirky. The rollout for the paid subscription tiers begins immediately, with plans to expand to free users and an API integration for developers scheduled to follow shortly.

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