Grok is xAI's AI platform built around the Grok 4 model, combining conversational assistance, advanced reasoning, coding, and real-time web search into a single service.
What is Grok?
Grok is xAI's flagship AI platform, centered on the Grok 4 language model, which you can try at grok4.app. It takes natural-language prompts and produces text responses, code, and (soon) image and video outputs, with a 130,000-token context window. The platform runs on xAI's Colossus supercomputer and is accessible via web, mobile, and API, with the current Grok 4 release expected to expand to vision and image generation.
Key Features
- Advanced Reasoning — Uses first-principles logic and axiomatic reasoning for complex problem-solving; scored 52 on AIME 2025 and 75 on GPQA.
- Superior Coding — Dedicated Grok4 Code model with IDE integration, file editing, and Cursor compatibility for development tasks.
- DeepSearch — Real-time web search that scans the internet and X platform for up-to-date information and summaries.
- Extended Context — 130,000-token context window for handling large documents and complex conversations.
- Think Mode — Step-by-step reasoning that makes the model's logic transparent; Big Brain Mode for extended problem-solving.
- Aurora Image Generation — Creates photorealistic images from text prompts using xAI's proprietary model.
- Grok Imagine — Generates 6-second animated video clips from text descriptions.
- Enterprise Ready — Professional-grade API with custom integrations for finance, medical, legal, and scientific domains.
Who is it for?
- Developers — Use Grok4 Code to generate, debug, and optimize code in over 50 languages, with direct IDE integration.
- Researchers and Analysts — Apply DeepSearch to gather current data and produce comprehensive summaries.
- Creatives — Generate images with Aurora and short videos with Imagine for visual content projects.
- Enterprise Teams — Leverage the API and domain-specific knowledge for document processing, data extraction, and compliance-related tasks.
What can you do with Grok?
- Accelerate development: Ask Grok4 to write functions, explain code, or refactor entire files directly in your editor.
- Get real-time answers: Use DeepSearch to ask questions that require current events or X posts, receiving cited summaries.
- Create visual content: Describe a scene to Aurora for a photorealistic image, or to Imagine for a short animated clip.
- Solve complex problems: Engage Think Mode for step-by-step mathematical proofs or logical reasoning tasks.
How does Grok work?
The typical interaction follows three steps: you input a query in natural language, Grok4 processes it using its reasoning engine and any relevant real-time data, and then it delivers a response—whether a text answer, working code, or a detailed explanation. The platform also offers Auto Mode, which automatically routes complex prompts to the strongest model.
Pricing
Grok offers a free tier with limited daily requests, plus paid subscription tiers: X Premium+, which bundles advanced Grok features with X platform access, and SuperGrok, a stand-alone AI subscription with higher limits. Enterprise customers can purchase custom API access with dedicated support.
FAQ
Is Grok 4 free to use?
Yes, xAI currently offers limited-time free access to all users, with non-subscribers limited to 5 requests per day. This free access includes both Auto Mode, which routes complex prompts to Grok 4 automatically, and Expert Mode for manual activation.
When will Grok 4 be released?
Grok 4 is expected to be released after July 4, 2025, though some API endpoints are already available. The model represents a significant upgrade from Grok 3, skipping the originally planned Grok 3.5.
How does Grok4 compare to other AI models?
Grok4 competes with ChatGPT, Claude, and Gemini, excelling in mathematical reasoning (AIME 2025: 52 vs GPT-4o's 48), scientific knowledge (GPQA: 75), and coding (LCB: 57). Its advantages include a 130K context window, real-time data access, and specialized enterprise knowledge.
What is Grok4 Code?
Grok4 Code is a specialized model designed as a coding companion for advanced IDE integration, built-in file editors, and Cursor compatibility. It can answer code questions, review and debug code, and work within a VSCode-like interface on the web.
