In the digital age where artificial intelligence (AI) is reshaping every aspect of life and work, two prominent names in the field of generative AI, Grok 3 by xAI and ChatGPT by OpenAI, have been creating fierce competition. Both possess outstanding capabilities, but follow different development philosophies and target different user groups. In this article, sadesign will go into detail to compare Grok 3 and ChatGPT in all aspects, from core technology, features, performance to practical applications, to help readers make the choice that best suits their needs.

1. General introduction: Two "giants" in the AI village ChatGPT: Multi-purpose pioneer

First launched in late 2022, OpenAI's ChatGPT has quickly become a global phenomenon, bringing generative AI closer to ordinary users. Through many upgraded versions, the latest of which is GPT-4o, ChatGPT has affirmed its position as a versatile, powerful AI tool in processing language, images and sounds. With the ability to create content, program, analyze data and support learning, ChatGPT is considered an all-round virtual assistant for a variety of users, from students, writers, programmers to businesses.

1.1 Grok 3: The wild and intelligent challenger

Developed by Elon Musk’s company xAI, Grok 3 has emerged as a formidable competitor to ChatGPT. Grok is built with a different philosophy: it is bold, humorous, and has access to real-time information from social network X (formerly Twitter). This gives Grok a unique advantage in providing up-to-date answers and capturing the latest trends. Grok 3 is not just a question-answering tool, but is also positioned as an AI with a “personality”, providing a fun and different interactive experience.

1.2 About GPT Chat

ChatGPT is an artificial intelligence model developed by OpenAI, designed to understand and generate natural language responses. Based on GPT (Generative Pre-trained Transformer) models, especially the latest version GPT-4o, ChatGPT is capable of text processing, answering questions, writing creative content, supporting programming, and conversing naturally with users. This tool is currently widely used in many fields such as education, media, e-commerce, and customer service thanks to its flexibility, high accuracy, and smooth interaction. ChatGPT has both free and paid versions, suitable for many different groups of users, from individuals to businesses.

2. Detailed comparison of Grok 3 and ChatGPT

To have a comprehensive view, we will compare these two tools based on the following important criteria:

2.1. Core technology and training data

ChatGPT-4o:

• Architecture: Based on the advanced Transformer architecture, GPT-4o (“o” stands for “omni”) is a truly multimodal model. It is designed to process inputs and produce outputs in the form of text, images, and audio seamlessly within the same neural network.

• Training Data: ChatGPT is trained on a huge and diverse corpus of data from the internet, books, and many other sources. However, its knowledge has a “knowledge cut-off”, although paid versions have the ability to access the internet to search for new information.

Grok 3:

• Architecture: Grok 3 is also built on the Transformer architecture but is optimized for real-time information processing and complex reasoning. xAI has invested heavily in computing infrastructure, with supercomputers containing hundreds of thousands of GPUs to train Grok 3, providing superior processing power.

• Training Data: Grok's biggest differentiator is that it is trained on a massive amount of data from social network X. This allows Grok to have a unique, up-to-date, and sometimes "unfiltered" view of events and discussions happening around the world.

2.2. Performance and Benchmarks

In standard tests of mathematics, programming, and logical reasoning, Grok 3 has shown impressive results, even surpassing competitors in some specific areas. Elon Musk and xAI confidently declare Grok 3 as one of the smartest AI models today.

However, ChatGPT, especially the GPT-4o version, still maintains top performance on a wide range of tasks, especially in generating natural, coherent, and creative text.

• Mathematics and Programming: Grok 3, with its “Think” and “Big Brain” modes, is designed to solve complex problems step by step, demonstrating strong logical reasoning capabilities. Many programmers find Grok 3 useful for debugging and coding difficult problems. ChatGPT is no slouch either, with its in-depth understanding of multiple programming languages and frameworks, providing clean code snippets and detailed explanations.

• Complex Reasoning and Analysis: Grok 3 excels at analyzing problems that require real-time information. For example, when asked to analyze an emerging market trend, Grok can aggregate information from X to provide an up-to-date answer. ChatGPT, on the other hand, is stronger at analyzing static data sets provided and generating detailed, structured reports.

2.3. Multimodality

Multimodality is an important concept in technology, especially artificial intelligence and machine learning. It refers to the ability to process, analyze, and integrate information from multiple data sources, such as text, images, audio, video, or other signals. This allows AI systems to gain a deeper understanding of context and provide responses that are more relevant to the user's needs. 

In fact, multimodal capabilities are being widely applied in areas such as healthcare, education, e-commerce, and communications, helping to improve efficiency and optimize user experience. Research and development of this technology plays a key role in driving the advancement of comprehensive artificial intelligence. Here are some of the areas where the difference is most pronounced:

• ChatGPT-4o: A master of multimodality. Users can upload images, documents, and even talk directly to ChatGPT. It can analyze charts, solve math problems from photos, translate in real time via camera, and respond with natural speech in a variety of tones.

• Grok 3: Currently, Grok 3's multimodal capabilities are more limited. It mainly handles text and can parse some simple image formats like diagrams or documents. Grok does not yet support live image creation or voice interaction as smoothly as ChatGPT.

2.4. Personality, Tone, and User Experience

ChatGPT and Grok 3 are both artificial intelligence systems designed to interact with users through natural language, but each platform has its own distinct personality, tone, and user experience. 

• Grok 3: Carrying the "DNA" of Elon Musk and the social network X, Grok has a unique personality: humorous, sarcastic and sometimes "rebellious". It does not hesitate to answer sensitive questions or make sharp comments. This creates a more interesting and intimate chat experience. Grok's interface is deeply integrated into the X platform, convenient for frequent users of this social network.

• ChatGPT: Usually has a neutral, professional, and helpful tone, like a real virtual assistant. Although users can ask ChatGPT to act and change its style, by default it maintains a formal attitude. ChatGPT's interface is simple, intuitive, and easy to use for everyone.

2.5. Vietnamese language support

Both tools support Vietnamese, but the level of completion is different:

• ChatGPT: Excellent Vietnamese support, from understanding complex, nuanced questions to producing natural, fluent, and grammatically correct Vietnamese text. ChatGPT is generally neutral, friendly, and focused on providing accurate information, while its tone is generally light-hearted and approachable, making it suitable for a wide range of users.

• Grok 3: Also capable of handling Vietnamese, however, sometimes the responses may not be as natural and smooth as when using English. However, this ability is still being improved continuously. Grok 3 may be designed to be more edgy, with an intuitive tone and a focus on optimizing responses towards high efficiency. In terms of user experience, both strive to create smooth interactions, but Grok 3 may emphasize customization and integration with other systems to serve specific needs. Therefore, the choice between these two platforms depends on the intended use and user expectations.

2.6 Prices and service packages

• ChatGPT: Offers a free version (which uses older and limited models) and paid plans like Plus and Team (around $20/month for Plus) to access the latest models (like GPT-4o), faster speeds, and advanced features.

• Grok 3: Currently, to use the premium features of Grok 3, users need to subscribe to the Premium+ package of social network X (price may vary by region). This means that Grok is tied to the X ecosystem.

3. Overview comparison table Grok 3 vs ChatGPT

4. Practical application: When to choose Grok 3, when to choose ChatGPT?

Choosing which tool is better depends a lot on your specific needs and intended use.

4.1 Choose Grok 3 if you

• Need real-time information: If your job requires you to stay up to date on news, trends, or social media discussions (e.g. journalist, market analyst, marketing specialist), Grok is a great choice.

• As a programmer or scientist: Grok 3's ability to reason logically and solve complex problems, especially with its "Think" and "Big Brain" modes, will be a great help.

• Enjoy a fun AI experience: If you are bored with overly serious chatbots and want a smart, funny AI companion, Grok 3 will bring you unexpected conversations.

• As a frequent user of social network X: Grok being deeply integrated into X will bring convenience and a seamless experience.

4.2 Choose ChatGPT if you

• Need an all-round AI tool: ChatGPT can meet almost any need, from writing emails, drafting reports, writing poems, writing scripts, translating, to assisting with learning and research.

• As a content creator: ChatGPT's ability to create long, well-structured, creative, and stylistically diverse texts is a huge advantage for writers, bloggers, and content creators.

• Need to handle multimodal tasks: If your work involves image analysis, PDF document processing, or you need a virtual assistant that can communicate by voice, ChatGPT-4o is the top choice.

• Prioritize the best Vietnamese support: For Vietnamese users, ChatGPT's ability to understand and produce Vietnamese naturally is a big plus.

• Need an accessible tool with a free version: ChatGPT has a powerful free version that makes it easy for users to try before deciding to upgrade.

5. The Future of AI Racing: Grok vs ChatGPT

The competition between Grok and ChatGPT is not just a battle between two products, but also a confrontation between two visions of the future of AI.

• OpenAI and ChatGPT: Aiming to build a super-assistant that is omnipotent, safe, and useful to all of humanity. The future of ChatGPT could be an AI that can automate complex tasks, deeply integrate into applications and operating systems, and become an indispensable part of digital life.

• xAI and Grok: Pursuing the goal of building an AI that "understands the universe" and "searches for maximum truth". With the advantage of X's data and rapid development speed, Grok promises to become a powerful tool in scientific exploration and provide new, uncensored perspectives.

​ 

6. Conclusion

It is difficult to give a definitive answer as to whether Grok 3 or ChatGPT is better. Each tool has its own strengths and weaknesses, serving different needs. ChatGPT is like a Swiss Army knife: reliable, flexible, and useful in almost every situation. It is a safe and effective choice for the vast majority of users. Grok 3 is like a special expert: extremely sharp, intelligent in its field (real-time information and complex reasoning), and has an unmistakable personality. It is the ideal choice for those looking for innovation, updates, and a different AI experience.