SuperAPI AI Directory
Partner with us中文AI newsFavorites
DirectoryNews and tutorials

GPT-5.1 - OpenAI's latest upgraded AI model

Author: AI小集 · Original source: AI工具集

What is GPT-5.1

GPT-5.1 is OpenAI's upgraded version of the GPT-5 series, enhancing intelligence and communication capabilities. GPT-5.1 includes two versions, GPT-5.1 Instant and GPT-5.1 Thinking. Instant is warmer and more natural, suitable for everyday conversation, better at following instructions, and provides interesting answers; Thinking focuses on complex reasoning, can more precisely adjust thinking time, being more detailed when handling complex tasks and faster on simple tasks. GPT-5.1 supports adaptive reasoning, optimizing the accuracy and efficiency of responses. This model upgrade improves the model's performance, enhances the user experience, and makes AI conversations more enjoyable and natural.

GPT-5.1

Main features of GPT-5.1

  • Smarter conversational experience: GPT-5.1 Instant is warmer, more natural, and more empathetic, suitable for everyday conversation, able to communicate in a more human-like way, and provides more interesting and practical answers.
  • Efficient reasoning and complex task handling: GPT-5.1 Thinking is more persistent and accurate on complex problems, can dynamically adjust thinking time based on problem complexity, provides more detailed answers, and responds faster on simple tasks.
  • Adaptive reasoning: The model introduces an adaptive reasoning mechanism for the first time. When facing complex problems, the model automatically decides whether deeper thinking is needed, providing more comprehensive and accurate answers while maintaining fast responses.
  • Enhanced instruction-following ability: The model can more reliably follow user instructions, answer questions accurately, and reduce misunderstandings and deviations.
  • Clearer output: GPT-5.1 Thinking's answers are more accessible, reducing the use of jargon and undefined terms, suitable for explaining complex concepts and technical issues.
  • Customizable: Users can adjust the model's tone and style through ChatGPT's personalization settings, such as friendly, professional, efficient, etc., and can even fine-tune the conciseness and warmth of its answers.

How to use GPT-5.1

GPT-5.1 Instant and Thinking versions will begin a gradual rollout starting November 12，First for paid users (Pro, Plus, Go, Business), then for free users and logged-out users. Enterprise and education users can enjoy a seven-day early experience (off by default). After the experience period ends, GPT-5.1 will become the only default model.

  • Use via ChatGPT
    • Log in to ChatGPT: Visit ChatGPT official website and log in to your account.
    • Select a model: If you are a paid user (such as Pro, Plus, Go, or Business), you may see options for GPT-5.1 Instant and GPT-5.1 Thinking in the ChatGPT interface. If you do not see them, you can wait a few days; the models are being rolled out gradually.
    • Start a conversation: Enter a question or instruction in the dialog box to experience GPT-5.1's features.
    • Personalization settings: In ChatGPT's settings, adjust the model's tone and style (such as friendly, professional, efficient, etc.), or fine-tune the conciseness and warmth of its answers.
  • Use via API：
    • Get API access: Visit the OpenAI API platform to register an account. After completing registration, you will receive an API key.
    • Select a model: On the API platform, find the options for GPT-5.1 Instant and GPT-5.1 Thinking. They correspond respectively to gpt-5.1-chat-latest and gpt-5.1。
    • Use the API platform interface: Enter questions directly on the webpage to get answers.

GPT-5.1 project address

  • Project official website：https://openai.com/index/gpt-5-1/
  • Technical paper：https://cdn.openai.com/pdf/4173ec8d-1229-47db-96de-06d87147e07e/5_1_system_card.pdf
  • GPT-5.1 project address

GPT-5.1 vs. GPT-5 generation comparison

Prompt: I’m feeling stressed and could use some relaxation tips.

GPT-5.1

Prompt: explain BABIP and wRC+.

GPT-5.1

GPT-5.1 application scenarios

  • Everyday conversation and emotional support: GPT-5.1 Instant provides a warm, natural conversational experience, suitable for everyday communication and emotional support, and can respond to users in a more human-like way, offering thoughtful suggestions.
  • Complex problem reasoning and analysis: GPT-5.1 Thinking is designed specifically for complex reasoning and can dynamically adjust thinking time, making it smarter and more accurate when handling complex problems, suitable for scenarios such as academic research and technical challenges.
  • Programming assistance and code generation: In programming tasks, GPT-5.1 provides more accurate code suggestions and logical analysis, performing especially well in mathematics and programming evaluations, suitable for developers to quickly solve problems.
  • Creative writing and content creation: GPT-5.1 can generate creative and entertaining text, supporting story creation, copywriting, and more, providing creators with inspiration and content support.