OpenAI has unveiled GPT-5.1, an upgraded generation of its ChatGPT models built to be smarter, warmer, and more conversational.
The release includes two versions: GPT-5.1 Instant, optimized for speed and casual conversations, and GPT-5.1 Thinking, designed for advanced reasoning and complex tasks.
Both models focus on improving clarity, adaptability, and user engagement while maintaining faster response times.
GPT-5.1 introduces adaptive reasoning, allowing the model to decide when to think more deeply before answering.
This change makes it nearly twice as fast on simple questions while producing more thorough responses for complex prompts.
The update also enhances the model’s tone, making ChatGPT feel more natural and emotionally intelligent in conversations.
Alongside the new models, OpenAI is introducing expanded personalization settings, allowing users to directly control ChatGPT’s tone and style.
New preset options, such as Professional, Friendly, Candid, and Quirky, make it easier to customize interactions.
Users can now adjust the tone of ChatGPT’s responses to be more concise, warm, or expressive without restarting conversations.
Key Takeaways:
- GPT-5.1 improves intelligence, adaptability, and conversational tone.
- Two models: Instant for quick chats, Thinking for deeper reasoning.
- New personalization tools let users customize ChatGPT’s voice and style.
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