Get ready for an exciting upgrade! We're unveiling GPT-5.1, a revolutionary step forward in AI technology. This isn't just about making AI smarter; it's about creating an AI that's a pleasure to converse with.
The Future of AI Conversations
GPT-5.1 comes in two flavors: GPT-5.1 Instant and GPT-5.1 Thinking. Both models have undergone significant enhancements to make them more intelligent, engaging, and adaptable to your needs.
GPT-5.1 Instant, our most popular model, now boasts a warmer and more conversational tone. It's designed to surprise and delight with its playful responses while maintaining clarity and utility. We've also fine-tuned its ability to follow instructions, ensuring it answers your queries precisely as intended.
One of the standout features is its adaptive reasoning capability. GPT-5.1 Instant can now decide when to take a moment to think before responding to challenging questions, resulting in more comprehensive and accurate answers without sacrificing speed. This is particularly evident in its improved performance on math and coding evaluations.
GPT-5.1 Thinking, on the other hand, focuses on efficiency and clarity. It adapts its thinking time to the complexity of the question, providing more thorough answers for difficult tasks and quicker responses for simpler ones. Its responses are jargon-free and easily understandable, making it an excellent tool for complex work-related tasks and explaining technical concepts.
But here's where it gets controversial... GPT-5.1 Thinking also has a warmer and more empathetic default tone. Some might argue that an AI should maintain a neutral stance, but we believe a little warmth can go a long way in making conversations more enjoyable and natural.
And this is the part most people miss... With GPT-5.1, you don't have to choose between capability and usability. GPT-5.1 Auto will automatically route your queries to the most suitable model, ensuring you get the best of both worlds without any extra effort.
The rollout of GPT-5.1 Instant and Thinking begins today, starting with paid users and gradually expanding to free users. Enterprise and Edu plans have a seven-day early access period, after which GPT-5.1 will become the default model.
If you're eager to try GPT-5.1, you might not see it immediately on ChatGPT. We're rolling it out gradually to ensure a stable performance for all users. Rest assured, GPT-5 Pro will soon be updated to GPT-5.1 Pro as well.
We're also bringing GPT-5.1 Instant and Thinking to the API this week, offering even more flexibility and control for developers.
But wait, there's more! Alongside these model upgrades, we're introducing enhanced customization options to tailor ChatGPT's tone and style to your preferences. We understand that people have diverse preferences, and we want to make it effortless for you to shape ChatGPT's personality.
Earlier preset options like Default, Friendly (formerly Listener), and Efficient (formerly Robot) have been refined and updated, and we've added new options like Professional, Candid, and Quirky. These settings apply across all models, and you can further fine-tune ChatGPT's characteristics directly from personalization settings.
ChatGPT can even proactively offer to update your preferences during conversations, ensuring your experience is consistently tailored to your needs.
The updated styles and tone options are live, and the ability to fine-tune specific characteristics is rolling out gradually as an experiment.
With GPT-5.1, we're taking a significant step towards creating an AI that feels uniquely yours - smarter, more enjoyable, and perfectly adaptable to your preferences.
So, what do you think? Are you excited about the future of AI conversations? We'd love to hear your thoughts and feedback in the comments!
