Grok 3 vs ChatGPT: We Compared The Two AI Models and Here Are The Results

Grok 3 vs. ChatGPT — if you’ve heard of the new AI model, Grok 3, in the past few days, you might be wondering how it compares with ChatGPT.

Grok 3 has become all the buzz in just a couple of days, boasting features like the Think and DeepSearch mode. ChatGPT has been around for a long time and is one of the AI models that probably everyone on the internet knows.

With so many options today — from industry giants like ChatGPT and Grok 3 to emerging solutions such as Chatsonic — finding the right AI assistant requires careful evaluation.

In this article, we’ll compare the two AI models — Grok 3 vs. ChatGPT — based on their features, use cases, and pricing. Let’s see which of these two AI models stands out and which of them might suit your business requirements.

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What Is Grok 3?

Grok 3, developed by xAI, is an advanced AI model designed to answer, research, and resolve a wide range of queries. 

It offers enhanced capabilities, including real-time knowledge updates, allowing it to deliver accurate and relevant responses without a fixed cutoff date. It can analyze X user profiles, posts, linked content, and uploaded files like images or PDFs, as well as search the web and X for additional context. 

Grok 3 offers three different modes — the Think mode, the Big Brain mode, and the DeepSearch mode, which enhance the models reasoning capabilities. While primarily text-based, it can generate images upon user confirmation and edit its own prior image outputs. 

It also avoids making ethical judgments, such as determining who deserves punishment, adhering to AI safety protocols — making it an AI model that stands up to other popular models like ChatGPT, Claude, and so on.

What Is ChatGPT?

ChatGPT, developed by OpenAI, is an advanced AI language model designed to generate human-like text, assist with complex problem-solving, and facilitate natural conversations. 

It is built on the GPT (Generative Pre-trained Transformer) architecture and has evolved significantly since its launch in 2022. In fact, it has become a household name for AI communication, writing, coding, and creative assistance.

Currently, it works on some of the latest LLMs by OpenAI — GPT-4o and GPT-o, which are known to provide deep contextual understanding, refined reasoning abilities, and adaptability across a vast range of topics. It can generate well-structured articles, write and debug code, summarize research papers, and even engage in philosophical discussions. 

Like Grok 3, it also has two modes — Search and Reason — built to enhance its capabilities. It has also integrated real-time web browsing, AI-powered image generation through DALL·E 3, and memory for context retention.

While both Grok 3 and ChatGPT are conversational AI models, they have significant differences both in terms of ability and quality. Let’s compare Grok 3 vs ChatGPT at a glance before we compare each of their features in depth. 

Grok 3 vs ChatGPT: Key Specs at a Glance

Before we dive into the nitty-gritty, here’s a quick comparison of Grok 3 vs ChatGPT:

Our Final Verdict: While Grok 3 and ChatGPT both excel in their own right. But they are general-purpose bots that aren’t built for specific use cases. For applications like marketing, SEO, and content creation, we’ve found AI agents like Chatsonic to be better alternatives. These AI agents connect with tools like Ahrefs and Google Search Console, leverage real-time data, and give results tailored to your brand.

Grok 3 vs ChatGPT: Comparing The Features and Capabilities

Here’s an in-depth comparison of ChatGPT and Grok 3’s features and capabilities:

Grok 3 vs ChatGPT: Reasoning and Problem-Solving

Grok 3 and ChatGPT both excel at reasoning and problem-solving, but they do it in different ways.

Grok 3 uses its DeepSearch and Think modes to handle complex questions with a more flexible and real-time approach. It can search the web and analyze recent information, making it great for discussions about current events, debates, and research-based questions. Since it pulls in external sources, it’s useful when you need the latest updates or a broader perspective on a topic.

ChatGPT, on the other hand, is designed for structured and logical thinking. It’s especially strong at solving coding problems, math equations, and step-by-step analysis. While it can also browse the web for information, its main strength is in breaking down complex problems clearly and logically. It’s a great choice for users who need well-organized explanations and deep reasoning.

In short, Grok 3 is better for real-time research and open-ended discussions, while ChatGPT is stronger in structured problem-solving and logical analysis. The best choice depends on whether you need up-to-date information or a well-reasoned, step-by-step solution.

In all benchmark tests, Grok 3 has performed consistently better than GPT-o1 and o1 mini, the latest OpenAI models. Here’s a breakdown of the same:

• Math (AIME 2025): Grok 3 scores 93.3%, beating GPT-o1’s 79%, showcasing superior mathematical reasoning.
• Science (GPQA): Grok 3 achieves 84.6%, topping GPT-o1’s 78%, indicating advanced scientific problem-solving.
• Coding (LiveCodeBench): Grok 3 excels, with a 79.4% over o1’s 72.9% in programming tasks, generating clean, functional code efficiently.

Verdict: Grok 3 takes the edge in technical reasoning; ChatGPT wins for general-purpose problem-solving.

Grok 3 vs ChatGPT: Speed and Efficiency

Speed and efficiency are crucial factors when choosing an AI model, especially for tasks that require quick responses and smooth interactions.

Grok 3 is designed to deliver fast, real-time responses, especially when using its DeepSearch mode to pull in fresh data from the web. Since it can access and analyze live information, there may be a slight delay when processing complex queries that require external sources. However, for general conversations and simple questions, it remains quick and responsive. The different modes—Think, Big Brain, and DeepSearch—also impact speed, with more in-depth queries taking longer.

In Grok 3’s Think mode, the AI model took 52 seconds to “think,” before answering the trolley problem.

ChatGPT, on the other hand, is optimized for fast and structured replies. Since it relies heavily on its pre-trained knowledge and efficient processing algorithms, it can generate responses almost instantly. Even when browsing the web for up-to-date information, it remains smooth and responsive. Its structured reasoning allows it to deliver clear, step-by-step solutions quickly, making it highly efficient for tasks like coding, writing, and problem-solving.

For the same trolley problem as before, ChatGPT just thought for 6 seconds in the Reason mode.

Overall, Grok 3 shines when retrieving real-time information, while ChatGPT is generally faster for structured queries and problem-solving. If speed is the priority, ChatGPT has the edge, but for real-time research, Grok 3 may be worth the wait.

Verdict: ChatGPT is fast, but it’s also because it doesn’t “think” a lot. Grok 3 maybe slower but still has remarkable speed for complex problems.

For those needing both speed and tailored solutions, a better option is Chatsonic. It taps into multiple advanced models like GPT-4o and Claude 3.5, delivering fast, marketing-ready outputs with a single prompt.

Grok 3 vs ChatGPT: Content Creation

ChatGPT can churn out blog posts, ad copies, and creative stories with a natural flair. Its ability to adapt tone and style — paired with integrations like DALL·E 3 for visuals — make it a really useful tool for content creation. 

Plus, with its recent updates, the AI model has really started delivering some human-sounding and in-depth long-form content — far better than its originally robotic and untrustworthy articles.

Grok 3’s writing capabilities are also at par and lean more toward factual, humanized content. It’s great for research-driven articles or witty social media captions, however, it’s not built for that use case. Plus, without image generation (yet), it’s a step behind for multimedia needs.

Verdict: Both ChatGPT and Grok 3 are great for content creation.

Grok 3 vs ChatGPT: Real-Time Data Access

One of the biggest differences between Grok 3 and ChatGPT is how they handle real-time information.

Grok 3 is built for live data retrieval. It can search the web and X (formerly Twitter) in real time, pulling in the latest updates, trending discussions, and newly published content. This makes it highly effective for researching current events, financial market updates, and breaking news. Its DeepSearch mode enhances this capability by diving deeper into web sources to provide more detailed insights. However, because it relies on external searches, response times can vary depending on the complexity of the query.

ChatGPT also has web browsing capabilities, but it isn’t as deeply integrated with real-time platforms like X. While it can look up information online, it may not always retrieve the latest updates as quickly as Grok 3. Instead, it focuses on delivering structured, well-organized insights based on both its browsing results and its vast pre-trained knowledge. This makes it better suited for general research, technical explanations, and historical data analysis rather than real-time event tracking.

Verdict: Grok 3 wins for real-time relevance; ChatGPT lags slightly.

Grok 3 vs ChatGPT: Modes

Grok 3 offers specialized modes that enhance its functionality. DeepSearch scours the web and X posts for up-to-date info, perfect for research-heavy queries. Think Mode lays out its reasoning step-by-step, taking 52 seconds on complex ethical dilemmas like the trolley problem, boosting transparency for technical users. 

Big Brain Mode amps up its computational power for tackling massive datasets or intricate problems, leveraging its 200,000 Nvidia GPU cluster.

ChatGPT counters with its own modes. Search Mode, powered by Bing, fetches real-time data, though it’s less integrated than Grok’s X-driven approach. Reason Mode refines its logic quietly, solving the same trolley problem in just 6 seconds—favoring speed over visibility. While effective, it lacks the explicit process breakdown of Grok’s Think Mode.

Verdict: Grok 3’s modes prioritize depth and transparency; ChatGPT’s lean toward efficiency and simplicity.

Grok 3 vs ChatGPT: Use Cases

Grok 3 thrives in technical and research-driven scenarios. It’s Think Mode and DeepSearch make it ideal for STEM professionals solving complex math, coding, or science problems, while X integration suits marketers or journalists tracking real-time trends. Think debugging code or analyzing breaking news.

ChatGPT excels in creative and general-purpose tasks. It’s perfect for writers crafting blogs, ad copy, or stories, and casual users seeking quick answers. With DALL·E 3, it’s a go-to for multimedia projects like illustrated guides.

If you’re looking for an AI assistant for a specific use case, such as marketing, it’s better to look at other alternatives like Chatsonic. Chatsonic, for instance, not only crafts marketing content but automates workflows by connecting tools like Ahrefs and GSC, saving time on everything from research to publishing.

Verdict: Grok 3 for specialized, data-heavy work; ChatGPT for creativity and everyday queries. For other specific use cases, try out better alternatives like Chatsonic.

Grok 3 vs ChatGPT: Pricing

Grok 3’s pricing is tied to the X ecosystem, offering access through the X Premium+ subscription at $40 per month in the U.S. (as of February 2025), which bundles Grok 3 with additional platform features like prioritized visibility. 

A standalone SuperGrok plan, rumored at $30 per month or $300 annually, unlocks enhanced features like unlimited queries and priority support. Still, availability is limited to X users, and regional restrictions may apply.

ChatGPT offers a tiered structure: the free version remains accessible to all, while ChatGPT Plus costs $20 per month, granting access to GPT-4o, GPT-4o mini and faster responses. 

The premium ChatGPT Pro plan, launched in December 2024, runs at $200 per month, targeting power users with unlimited access to advanced models like o1 and GPT-4o, plus extras like voice features.

Verdict: Grok 3’s $40/month Premium+ plan undercuts ChatGPT’s $200 Pro tier by a wide margin, offering competitive features for less — though it’s pricier than ChatGPT Plus at $20. 

For budget-conscious marketers, Chatsonic offers a compelling alternative, blending premium AI features with marketing tools at a fraction of the cost, starting at just $16/month.

Final Verdict: Grok 3 vs ChatGPT: What’s the Difference?

Both ChatGPT and Grok 3 are AI models with advanced features and capabilities. Grok 3 excels in technical reasoning, speed, and real-time data via X integration, which is ideal for STEM users at $40/month. It’s Think Mode and GPU power shine, though it lacks multimedia features. 

ChatGPT, on the other hand, leads in versatile problem-solving and content creation, with DALL·E 3 integration, offering a $20/month Plus tier and a $200 Pro plan. It’s less dynamic but more accessible. 

However, both AI models are ultimately general-purpose platforms that may not perform well for niche use cases such as marketing or analytics. For such use cases, it might be better to choose a niche AI product, such as Chatsonic for marketing. 

By choosing a use-case-specific AI product like Chatsonic, you get access to the right tools in the domain along with the power of AI. To explore more, sign up for Chatsonic today.

For more updates on Grok 3 and its capabilities, stay tuned to Writesonic’s blog.

Niyati Mahale

Niyati Mahale is a Content Writer @Writesonic. She specializes in artificial intelligence and B2B, with a flair for combining effective storytelling and SEO best practices to create impactful content.