GPT-4.5 Released: Improved Emotional Intelligence and Unsupervised Learning, Reduced Hallucinations 247

What is GPT-4.5?

GPT-4.5 is the latest AI model released by Openai on February 27, 2025. It is an upgraded version of GPT-4, offering a more natural and emotionally rich conversational experience through expanded unsupervised learning and improved understanding of human intent. GPT-4.5 delivers significant improvements in knowledge breadth and accuracy, with a lower hallucination rate, making it well suited for writing, programming, and solving real-world problems. GPT-4.5 also adopts new training techniques to enhance its emotional intelligence and creativity, enabling it to deliver high-quality service across a wide range of application scenarios.

Key Features of GPT-4.5

• Enhanced Emotional Intelligence: GPT-4.5 excels at understanding and responding to human emotions, providing a warmer and more intuitive conversational experience.

• Expanded Knowledge Base: GPT-4.5 possesses a broader knowledge base, enabling it to better understand and handle human intent and deliver more accurate suggestions for writing, programming, and solving practical problems.

• Reduced Hallucinations: Compared with previous models, GPT-4.5 shows improvement in generating inaccurate or irrelevant information, reducing the occurrence of "hallucinations."

• Improved Unsupervised Learning: By scaling up pre-training and post-training, GPT-4.5 has strengthened its ability to recognize patterns, draw connections, and generate creative insights.

• Enhanced Human-AI Collaboration: Through new training techniques, the model better understands human intent, is more sensitive to nuance, and delivers more natural conversations with higher "emotional intelligence."

• Aesthetic Intuition and Creativity: Performs strongly in creative fields such as writing and design, generating innovative content tailored to user needs.

• Reasoning and Task Execution: Although not a dedicated reasoning model, GPT-4.5 demonstrates strong capabilities when handling complex tasks and multi-step workflows.

GPT-4.5 Technology

• Model Size: GPT-4.5 is a Transformer MoE model with 1T activated parameters, trained on 120T tokens of data.

• Context Window Length: 256K, with knowledge updated through 2024 and capable of real-time information processing.

Application Scenarios for GPT-4.5

• Programming Support: Assists in writing and optimizing code and automating workflows in software development.

• Problem Solving: Provides detailed explanations and helps with practical decision-making.

• Writing Assistance: Offers high-quality text creation, editing, and proofreading services.

• Communication and Customer Service: Acts as an intelligent customer service agent in business environments, delivering a humanized interactive experience.

• Learning and Tutoring: Supports education by providing personalized learning guidance and answers to questions.

• Brainstorming and Creative Development: Helps generate new ideas and strategies in creative industries.

• Intelligent Agent Planning: Automates complex task workflows, such as programming and project management.

• Writing and Design: Creates articles, stories, and even initial design drafts, assisting creative professionals.

Access Methods

• ChatGPT Pro Users: First to gain access, with a subscription fee of $200 per month.

• Plus and Team Users: Planned to roll out gradually next week.

• API: Released to developers at all paid tiers, supporting function calling, structured output, and more

How to Use GPT-4.5?

Access via a ChatGPT Pro Account

• Subscribe to ChatGPT Pro: Visit the OpenAI official website (https://chatgpt.com) and register a Pro account, with a subscription fee of $200 per month.

• Log In and Switch Models: Log in to your ChatGPT Pro account, find the model selector in the chat window, and choose GPT-4.5 as your chat model.

Access via API

• Obtain an API Key: Log in to the OpenAI developer platform (https://beta.openai.com), go to the API Access page, and create a new API key. It is released to developers at all paid tiers, supporting function calling, structured output, and more.

• Integrate the API into Your Project: Using your preferred programming language, follow the API documentation provided by OpenAI to integrate the API key into your project. Below is a sample Python code:

• Call API Features: In your project code, call the various GPT-4.5 features as needed, such as text generation, translation, and summarization.

Access via Mobile App

Download and Install the App:

• For Apple users, search for "ChatGPT" in the App Store and download it.

• For Android users, download it from the Google Play Store or third-party app stores (such as APKCombo).

Log In and Use:

• Open the app, log in with your OpenAI account, and start using GPT-4.5 for chatting, generating text, and more.