Grok 4

What Is Grok 4?

Grok 4 is the flagship AI model from xAI, the artificial intelligence company originally founded by Elon Musk and now operating under SpaceX. Launched in July 2025, Grok 4 represents a major leap from earlier versions, introducing native tool use, real-time search integration, and multimodal understanding across text, images, and video.

What makes Grok genuinely different from competitors like ChatGPT, Claude, and Gemini is its deep integration with real-time data from X (formerly Twitter), the broader web, and news sources. While other AI models rely on periodic training data updates, Grok can pull live information into its responses, making it especially powerful for research, current events, and anything where up-to-the-minute context matters.

Since the initial Grok 4 launch, xAI has shipped updates rapidly. Grok 4.1 arrived in November 2025 with refinements, and Grok 4.3 launched in April 2026 with always-on chain-of-thought reasoning, native video input, and even slide generation capabilities. The model is accessible through the standalone Grok app at grok.com, the X platform, iOS and Android apps, and the xAI API.

Key Features

Native Tool Use

Grok 4 was trained from the ground up with reinforcement learning to use tools. Unlike models where tool use is bolted on after training, Grok 4 natively understands when and how to call external tools — search the web, execute code, analyze data, or interact with APIs. This makes it particularly effective for agentic workflows where the AI needs to chain together multiple steps autonomously to complete a task.

Real-Time Search

This is Grok's standout differentiator. The model integrates live search across X, the web, and news sources directly into its responses. Ask about a breaking news story, a trending topic, or the latest stock movement, and Grok pulls current data rather than relying solely on its training knowledge. For anyone who works with time-sensitive information — journalists, researchers, traders, marketers — this is a game-changer.

DeepSearch

Available on paid plans, DeepSearch is Grok's advanced research mode. When activated, it conducts thorough multi-step web research before answering, synthesizing information from multiple sources. Think of it as having a research assistant that reads dozens of articles and reports before giving you a comprehensive answer.

Multimodal Understanding

Grok 4 processes text and images, and with the 4.3 update, it now handles video input as well — making it one of the few API-accessible models with native video understanding at its intelligence tier. You can upload documents, screenshots, photos, or video clips and ask questions about them, making it versatile for analysis across media types.

Voice Mode

Grok features an upgraded voice mode with enhanced realism and responsiveness. You can have spoken conversations with the AI, which is useful for brainstorming, dictation, or hands-free research. xAI also offers a Voice Agent API and custom voice cloning for developers building voice-powered applications.

Grok Imagine

The image and video generation side of Grok is powered by Aurora, its built-in image engine, which produces photorealistic visuals in under five seconds. Paid subscribers can generate images and short video clips directly within the chat interface. The newer Imagine Agent Mode (beta) offers an infinite-canvas creative workspace for batch image editing and stitching clips into longer films.

Skills and Memory

As of May 2026, Grok supports persistent Skills — you can teach it formatting rules, workflow steps, or document styles once, and it remembers them across every future conversation. This makes it significantly more useful for recurring tasks where you don't want to repeat your preferences every time.

Who Is Grok 4 For?

Grok 4 serves several distinct audiences. Researchers and analysts value the real-time search and DeepSearch capabilities for staying current on fast-moving topics. Developers use the xAI API to build applications with AI reasoning, real-time data, and multimodal understanding — especially attractive given the OpenAI-compatible API format that makes migration straightforward. Content creators and marketers leverage the image generation, voice mode, and X platform integration for social content workflows. And power users who simply want a capable everyday AI assistant find Grok's personality and speed appealing.

If your work depends on current information or you're heavily embedded in the X ecosystem, Grok offers capabilities that no other AI chatbot matches.

How to Use Grok 4

Step 1: Create an Account

Visit grok.com and sign up for a free account, or download the Grok app on iOS or Android. You can also access Grok through the X app if you already have an X account. The free tier gives you basic access with limited usage — around 10 prompts every 2 hours and 10 images every 2 hours.

Step 2: Start a Conversation

Type your question or request in the chat interface. Grok responds with its characteristic direct style. For basic questions, the free tier works fine. For complex research, enable DeepSearch (available on SuperGrok and above) to get thorough, multi-source answers.

Step 3: Use Multimodal Features

Upload images or documents directly into the chat to ask questions about them. With Grok 4.3, you can also upload video clips for analysis. This is useful for everything from analyzing charts and screenshots to getting feedback on designs or understanding visual content.

Step 4: Generate Images and Video

Ask Grok to create images using Imagine. Describe what you want — "a minimalist logo for a coffee brand" or "a cinematic sunset over Tokyo" — and the AI generates visuals in seconds. On paid plans, you can also generate short video clips and access the Imagine Agent Mode canvas for more complex creative workflows.

Step 5: Try Voice Mode

Tap the microphone icon to start a voice conversation with Grok. It's surprisingly natural and works well for brainstorming, getting quick answers while multitasking, or exploring ideas conversationally.

For Developers: The xAI API

The xAI API speaks the OpenAI SDK format, which means switching an existing GPT-based application to Grok is usually just a base URL and model name change — minutes of work, not days. The latest Grok 4.3 model costs $1.25 per million input tokens and $2.50 per million output tokens, making it significantly cheaper than GPT-4.1 ($2.00/$8.00) for comparable intelligence. The faster Grok 4.1 Fast model is even more affordable at $0.20 per million input tokens and $0.50 per million output, with a 2-million-token context window. The API includes real-time live search, structured outputs, and enterprise-grade security with SOC 2 Type 2, GDPR, and CCPA certifications.

Pricing

Grok offers several access tiers ranging from free to premium, plus separate API pricing for developers.

The Free tier provides basic Grok access with limited usage — approximately 10 text prompts and 10 image generations every 2 hours. It's enough for casual use and evaluation, but not for daily productivity.

SuperGrok Lite costs $10 per month and unlocks basic image and video generation at 480p, longer chats, and access to Grok Imagine at an entry-level price.

SuperGrok at $30 per month (or $300 per year) is the core paid plan. It includes unlimited text prompts (with soft throttling under heavy use), full Grok 4 access, DeepSearch, extended thinking mode, voice mode, image generation, up to 100 video renders daily, and a 128K context window. For most individual users, this is the sweet spot.

SuperGrok Heavy at $300 per month is the premium tier, providing access to Grok 4 Heavy (the most powerful variant), the highest usage limits, and priority processing. It's designed for high-volume business and research use cases.

Grok is also bundled into X subscriptions. X Premium at $8 per month includes basic Grok access as a side benefit of the social platform subscription. X Premium+ at $40 per month adds Grok 4 access, DeepSearch, and higher usage limits alongside ad-free X browsing.

For teams, Grok Business costs $30 per user per month with a guarantee that your data won't be used for model training — an important distinction from consumer plans.

Supported Platforms

Grok is available through the web at grok.com, dedicated iOS and Android apps, within the X app on all platforms, and in Tesla vehicles through Tesla OS. For developers, the xAI API provides programmatic access with OpenAI-compatible formatting. xAI has also announced availability through hyperscaler partners for enterprise deployments.

Pros and Cons

Grok's biggest strengths are its real-time data integration, competitive API pricing, native tool use, and the breadth of its feature set — text, images, video, voice, and search all in one platform. The OpenAI-compatible API makes developer adoption frictionless. Image generation quality rivals dedicated tools, and the personality of the model is distinctively engaging. The Skills feature adds useful personalization that carries across sessions.

On the downside, Grok 4's pure reasoning and math benchmarks still trail GPT-5.5 and Gemini 3.1 Pro in some areas. The credit and throttling system on consumer plans can be opaque — "unlimited" prompts on SuperGrok come with soft caps that aren't clearly documented. At $30 per month, SuperGrok costs 50% more than ChatGPT Plus or Claude Pro at $20 each. And while rapid model updates show impressive velocity, the frequent version changes can be disorienting for users trying to keep track of which model does what.

Final Thoughts

Grok 4 carves out a distinct position in the AI landscape by doing something no other major chatbot does as well: integrating real-time data directly into intelligent conversation. If your work involves staying current — tracking markets, monitoring trends, researching breaking developments, or analyzing what's happening on X right now — Grok offers a capability that ChatGPT, Claude, and Gemini simply don't match. The aggressive API pricing and OpenAI-compatible format make it an attractive option for developers, too. Whether it's worth the premium over competitors depends on how much you value live data and the broader feature bundle. The free tier gives you enough to find out.