What is ChatGPT 4o? A Comprehensive In-Depth Analysis and Practical Guide (2025)

In 2024,OpenAIThe new generation of multimodal flagship model was officially released.ChatGPT 4o (Omni)While sparking a global surge in AI technology and industry, ChatGPT 4o has also become a "groundbreaking" product in the AI tools market.By 2025, ChatGPT 4o had been widely integrated into various scenarios such as enterprise office, content production, education and tutoring, code development, and creative thinking.This article will take a professional news reporting perspective to provide an in-depth analysis of what ChatGPT 4O is, its technical principles, functional upgrades, application practices, and advanced practical skills, helping you get started fully and unleash the powerful productivity of AI in all aspects.
Table of Contents
| Module | Highlights Summary |
|---|---|
| Technical Principles | Multimodal input, multi-turn dialogue, low-latency response |
| Functional Analysis | Text, code, images, and audio – all fully upgraded. |
| Version Comparison | Comparison of Free/Plus/Team/Pro |
| Advanced usage | Multilingual, Deeply Customizable, Plugin Ecosystem |
| Practical Guide | Registration, Usage, Restrictions, and Avoiding Pitfalls |
ChatGPT 4o: A Representative of the New AI Era
What is ChatGPT 4o?
ChatGPT 4oChatGPT 4o is OpenAI's latest multimodal, ultra-powerful, and general-purpose model, launched in May 2024. The "o" in ChatGPT stands for Omni. ChatGPT 4o is the first model to achieve seamless processing within a single model.Text, voice, image, audioInput is faster, understands more deeply, and supports real-time dialogue, providing a human-level multimodal communication experience. By 2025, this feature will have become a major engine of change in industries such as AI assistants, content creation, office automation, and customer service.

Highlights of Technological Evolution
- Multimodal engineIt supports various data inputs such as text, voice, and images, greatly improving its understanding and generation capabilities.
- Speed and cost balanceIt is 2 to 6 times faster than GPT-4, and its API and tools are more affordable.
- Voice experience revolutionBuilt-in high-sensitivity voice assistant with a voice response latency as low as 250ms.
Official resources and access
- ChatGPT Official Login
- Detailed introduction to ChatGPT 4o (OpenAI release page)
- Multimodal Capability Analysis (Authoritative Evaluation)
Multiple Versions Comparison: Advantages of ChatGPT 4o at a Glance
| Products and Versions | Main features | Is it multimodal? | Context length | price |
|---|---|---|---|---|
| GPT-3.5 | Basic dialogue, free, excellent copywriting skills | 否 | 16K tokens | free |
| GPT-4 | More accurate, improved reasoning ability, API requires payment | 否 | 128K tokens | Paid |
| GPT-4o | Versatile multimodal, supporting voice, text, and image input, with extremely high speed. | 是 | 128K tokens | Free/Plus |
| ChatGPT Plus | Users can experience the new model first and access plugins such as DALL·E and browsers. | Support section | 128K tokens | $20/month |
| ChatGPT Pro | Enhanced enterprise-level performance and deep customization for multi-project management | 是 | ≥128K | $200/month |
ChatGPT 4o Core Functionality Full Analysis
Text Dialogue and Understanding
Newly optimized natural language processing engineThis enables smoother human-computer dialogue. It supports multi-turn dialogue memory and context tracking, eliminating self-repetition and making expression more fluent and logical.
Multimodal input – an AI experience that goes beyond text
- Voice interactionBuilt-in AI voice assistant, supports real-time voice translation, expression of emotions, and smooth multilingual conversion.
- Image AnalysisUsers can upload images, and ChatGPT 4o can recognize, analyze, generate related text, and even draw directly.
- Audio/Video AnalysisSupports simple audio recognition and summarization, and basic video content generation.

Significantly improved coding skills
FusionCodextechnology(Introduction to OpenAI CodexIt allows engineers to directly write code, interpret and debug it, and generate complex scripts. Engineers can directly input code snippets or upload documents, and the model will automatically understand and optimize them.

Advanced content creation and knowledge retrieval
- Supports automatic writing of long paragraphs, SEO optimization, and industry reports.
- Can be implemented by calling the browserLatest online data query (Plus exclusive)
- Supports paper abstracts, academic search, and automatic data aggregation.
Plugin & Extension Ecosystem
ChatGPT 4o further opens upGPT StoreUsers can install various professional plugins for it, such asDrawing plugins, PDF recognition, table generation, meeting minutes, etc.(Related resources:)GPTs official introduction)。

Use Cases and Practical Guide
Typical industry applications
| Industry/Scenario | Scene Description | ChatGPT 4o Practical Highlights |
|---|---|---|
| Content production | Self-media, news editing, copywriting | Multi-topic generation, one-click editing, multi-language output |
| Education and Training | Online explanations, note summaries, and homework correction | Voice explanation, automatic grading, question generation |
| Enterprise and institutional office | Intelligent customer service, email writing, meeting minutes | Multi-turn dialogue, professional document organization, and real-time speech transcription |
| Code development | Programmer assistance, code repair, and batch project refactoring | Intelligent code completion, multi-language support, and automatic bug location. |
| Visual Creativity | Graphic design, image generation, visual description | Image description generation, cartoon creation, layout suggestions |
| Legal and Medical | Legal Q&A, health education, appointment-based Q&A | Strict industry limitations; can be used as a scientific aid. |
New User Registration and Experience Process
- access OpenAI ChatGPT Official Website
- Register for a free OpenAI account (one-click login supported by Google/Apple, etc.)
- Enter the main interface and selectModel(GPT-4o is recommended for a better multimodal experience)
- You can simultaneously input content via the "Upload Attachment" box using text, voice, or images.
- Premium users can upgrade to Plus/Pro to unlock more restrictions and professional plugins.
Kind tips
- Accessing the internet via a VPN is required in certain special scenarios.
- Free users have access to call rates and daily quotas.Plus/Pro generally support higher concurrency.
- Don't blindly trust professional advice; remember to verify it first!
Usage limitations and pitfall avoidance tips (2025 latest)
| Common restriction types | illustrate | Suggested coping methods |
|---|---|---|
| Call limit | Free users get 40-50 attempts per hour, Plus users get 100+ attempts per hour. | Order splitting requests/off-peak calls/API requests can be divided into time periods |
| Content moderation and security | Rejection is likely to occur when discussing sensitive/illegal/medical investment topics. | In academic settings, please specify that it is academic research and avoid mass production of sensitive content. |
| Long text/large file | The maximum output per cycle is approximately 8,000-12,000 characters. | Split long text input and summarize output in stages |
| Programmatic API calls | High-concurrency/repeated API requests per hour will be rate-limited. | Configure call intervals/fine-tune parameters to avoid batches of homogeneous requests. |
| Multi-turn dialogue memory | Long conversations are prone to losing context. | Timely summary archiving, and "cleaning up" every 5-6 rounds of dialogue. |
Users can refer to the official restrictions:Tips for avoiding pitfalls when using GPT-4o
ChatGPT 4o: Advanced Usage Tips and Customization
Multilingual Prompt and Translation
- Leveraging 4o's powerful multilingual understanding capabilities, complex texts can be translated into English first, and then a question can be asked before requesting a response in Chinese, resulting in better performance.
- During multi-round conversations, the language can be switched directly, making it suitable for international teams/multilingual fan operations.
Deep customization and memory function
- Custom character settingsIn "Settings - Custom ChatGPT", enter the user's profession and habit areas to get answer styles that match their own.
- Project function: Categorize all conversations by project/topic for easier team collaboration and multitasking.
- Memory and ShortcutsBy "remember my request", AI can automatically adapt to daily preferences.
Plugin/Extension Developer Ecosystem
- Download third-party plugins, such as PDF parsing and table/chart generation, from the GPT Store.
- Developers can perform secondary development based on the API and integrate with multiple systems (such as Slack, Notion, Jira, etc.).
Meeting Assistant and Automatic Documentation
- Enables functions such as automatic transcription of audio conferences, compilation of meeting minutes, and automatic email replies.
- Recommended combinationMeetingAIAI-powered meeting plugins can improve office efficiency.

A list of recommended AI tools related to ChatGPT 4o
| Tools/Services | Special uses | Official website link | Suitable for |
|---|---|---|---|
| DALL·E | AI Image Generation | DALL·E Official Website | Visual creativity, designer |
| ChatGPT Mobile App | Official mobile app | iOS Download、Android Download | Convenient daily conversations |
| Codex | AI code generation | Codex Introduction | Programmers, developers |
| Perplexity AI | AI-powered intelligent search | Perplexity official website | Searching for knowledge, academic users |
| Claude 3 | Advanced Dialogue Models | Claude Official Website | Corporate clients |
| Felo AI Search | Academic/Knowledge Search | Felo official website | Researchers, students |
| MeetingAI | Smart Meeting Automatic Transcription | MeetingAI Official Website | Workplace Team |
Further Reading and Practical Resources
- Comparative Analysis of ChatGPT 4o with Google Gemini and Claude 3
- ChatGPT 4o Plugin Practical Application and Scenario Expansion
- Official In-Depth Analysis: GPT-4o Release Announcement and Demo
- New Trends in AI-Assisted Content Creation and Code Development (Zhihu Column)
Conclusion
By 2025, ChatGPT 4o will no longer be a thing of the future, but a real-world "digital assistant" for every professional, creator, developer, teacher, and AI enthusiast.Versatile multimodal, ultra-fast response, plug-in expansion, deep memoryThese features have made ChatGPT 4o an indispensable AI partner for both work and life. With efficient learning, skillful customization, and a focus on compliance, you too can reshape personal and organizational productivity with ChatGPT 4o! [Experience Now:]chatgpt 4o online portal】
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