GPT-4.5 - OpenAI's most powerful chat model - AiBoss

What is GPT-4.5?

GPT-4.5 is OpenAI's latest large-scale chat model, currently the largest and most powerful chat model. Based on extended unsupervised learning, it enhances pattern recognition, knowledge breadth, and creative generation capabilities, reduces illusions, and makes dialogue more natural and aligned with human communication habits. GPT-4.5's core advantages lie in its extensive knowledge base, higher "emotional intelligence," and accurate understanding of user intent, making it suitable for scenarios such as writing, programming, problem-solving, and creative design. GPT-4.5 supports online search, file and image uploads. GPT-4.5 has undergone rigorous security testing to improve the model's security and reliability.

Main functions of GPT-4.5

Natural Language DialogueProvide a more natural and warmer conversational experience, understand user intent, and give answers that meet their needs.
Writing aidsIt helps users with creative writing, copywriting, and article polishing, providing more coherent and creative text.
Programming supportIt supports code generation, debugging, and optimization, and handles complex programming tasks and multi-step coding workflows.
Knowledge Q&APossessing a broader knowledge base, able to answer questions from various fields, and reducing hallucinations.
Multilingual supportIt supports conversations and writing in multiple languages, with significant improvements in some rare languages such as Swahili and Yoruba.
Emotional understandingTo better capture users' emotions and needs, and provide more thoughtful suggestions or responses.
Supports multiple input methodsSupports text, file, and image input; GPT-4.5 supports online search to obtain the latest information and provides more timely responses.
API IntegrationSupports the Chat Completions API, Assistants API, and Batch API to integrate GPT-4.5 into various applications.

Technical Principles of GPT-4.5

Extension of unsupervised learningGPT-4.5 enhances its performance through large-scale unsupervised learning. Unsupervised learning refers to training a model on a large amount of unlabeled data to learn language patterns and structures. GPT-4.5 further improves the model's understanding of the world through expanded computing resources, increased data volume, and architectural optimizations.
Deep World KnowledgeTrained on the Microsoft Azure AI supercomputer, it integrates broader knowledge and a deeper understanding of the world. This makes the model more reliable when dealing with a wide range of topics and reduces illusions.
Human Collaboration TrainingGPT-4.5 is based on a new scalable technology that uses data generated by smaller models to train larger models. This improves model maneuverability, nuanced understanding, and natural conversational abilities. Based on human preference tests, GPT-4.5 outperforms its predecessors in terms of naturalness and comprehension in dialogue.
Enhancing Emotional Intelligence (EQ)GPT-4.5 improves the understanding of human intentions and emotional intelligence, better capturing implicit cues and expectations in conversations. It demonstrates greater empathy and creativity in dialogues, generating content that is more in line with human communication habits.
Security and AlignmentThe training process combines traditional supervised fine-tuning (SFT) and reinforcement learning with human feedback (RLHF) to improve model safety and ensure that behavior conforms to human values.

GPT-4.5 performance

SimpleQA (Question and Answer System)GPT-4.5 achieved an accuracy of 62.5% on the SimpleQA dataset, outperforming other OpenAI models.
Hallucination rateIn the SimpleQA hallucination rate assessment, GPT-4.5 had a hallucination rate of 37.1% (lower is better), which was significantly lower than other models.
PersonQA datasetOn the PersonQA dataset, GPT-4.5 achieved an accuracy of 0.78, which is significantly better than GPT-4o (0.28) and o1 (0.55).
Multilingual performanceGPT-4.5 outperforms GPT-4o in Multilingual Assessment (MMLU), with a significant improvement, especially in rare languages such as Swahili and Yoruba.
Safety and bias detectionGPT-4.5 performs well in rejecting harmful content, but is slightly better than its predecessor in over-rejection.
Programming and Task ExecutionIn terms of programming tasks, GPT-4.5 has improved its performance in code generation and repair tasks, especially in the Agentic Tasks assessment, where it can complete some complex tasks, such as performing terminal operations in a Linux + Python environment, automatically downloading and running programs, etc.
Human Preference TestIn comparative evaluations with human test subjects, GPT-4.5 had a higher win rate (human preference test) than GPT-4o, including but not limited to creative intelligence (56.8%), professional questions (63.2%), and everyday questions (57.0%).

How to use GPT-4.5

ChatGPT Pro usersStarting February 28th, ChatGPT Pro users can use the research preview version of GPT-4.5.
Plus and Team usersIn the first week of March, GPT-4.5 will be gradually rolled out to ChatGPT Plus and Team users.
Enterprise and Edu usersIn the second week of March, GPT-4.5 will be available to Enterprise and Edu users.

GPT-4.5 Project Official Website

Official website address:https://openai.com/index/introducing-gpt-4-5

GPT-4.5 product pricing

Input Cost$75 per million tokens
Output cost$150 per million tokens

Application scenarios of GPT-4.5

Writing aidsIt helps generate text and polish content, making it suitable for writing, copywriting, and other creative tasks.
Programming supportProvides code suggestions and debugging assistance to improve programming efficiency.
Learning tutoringIt answers academic questions and assists with exam preparation, making it suitable for students and educational settings.
Communication and CollaborationNatural dialogue, suitable for customer service, team collaboration and cross-cultural communication.
Task automationIt can handle complex tasks, support multi-step workflows, and improve efficiency.