grok.com
** — Main chat interface (web, iOS, Android), also integrated into X
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What is grok.com?
Grok is an AI assistant developed by xAI (founded by Elon Musk) that provides real-time answers, chat, image generation, code writing, and multimodal capabilities. It is accessible via grok.com, iOS, and Android apps, and is deeply integrated with X (formerly Twitter) for live data access. Grok features a 2-million-token context window, built-in Python code execution, DeepSearch for cited multi-source research reports, and Big Brain mode for extended multi-step reasoning on complex problems.
Key features include real-time web and X data access, image generation via Grok Imagine, voice mode for natural conversations, file upload support (PDF, CSV, XLSX, TXT, Markdown, ZIP up to 50MB), and specialized modes like Think (shows reasoning traces) and DeepSearch (queries ~100 pages and X profiles to create research reports). The platform offers both consumer tiers and a competitive developer API with low per-token pricing.
Grok is designed for casual users, researchers, journalists, developers, and power users who need real-time information, large document processing, or multi-agent reasoning workflows. It appeals to users who want an unfiltered AI assistant with humor, those tracking breaking news or public sentiment on X, and developers building applications requiring large context windows or cost-effective API access.
grok.com pricing
Pricing model: Freemium
Free tier: 10 queries every two hours, up to 3 image analyses per day, access to Grok 4 and Grok 4.1 with standard web/X search, basic image generation, and limited voice mode. X Premium Plan: $8/month with increased query limits and faster response times. X Premium+ Plan: $16/month with unlimited access, ad-free experience, priority access to new features, and truly limitless Grok interaction. SuperGrok: $30/month (or $300/year with 16% discount) offering significantly higher rate limits, ~30% faster response times, higher caps on Think/DeepSearch (30 per two hours), and priority routing. SuperGrok Heavy: $300/month for power users needing multi-agent reasoning workflows and access to most capable reasoning models. Grok 4.1 API: $0.20 per million input tokens, $0.50 per million output tokens. Grok 4.1 Fast: same input price with reduced latency.
grok.com pros
- Real-time access to X (Twitter) data for breaking news and trending topics
- 2-million-token context window exceeds competitors for long documents
- Free tier includes Grok 4 and Grok 4.1 with genuine model access
- DeepSearch mode generates cited multi-source research reports
- Big Brain mode enables extended multi-step reasoning on complex problems
- Built-in Python code execution with NumPy, SymPy, and PyTorch libraries
- Grok 4.1 API pricing at $0.20 per million input tokens undercuts competitors
- Image generation via Grok Imagine with editing capabilities
- Voice mode supports natural conversations with speech-to-text
- File upload supports PDF, CSV, XLSX, TXT, Markdown, and ZIP archives up to 50MB
- Think mode displays Grok's reasoning traces as it solves problems
- Less restrictive content moderation compared to ChatGPT and Claude
- Priority routing for SuperGrok subscribers delivers ~30% faster response times
- iOS and Android apps alongside standalone grok.com website access
- Table extraction and formula explanation for spreadsheet uploads
grok.com cons
- Output quality on creative tasks trails ChatGPT and Claude
- Free tier limited to 10 queries per two hours and 3 image analyses per day
- Think/DeepSearch modes as low as 2 per day on free tier
- Less restrictive content moderation may create compliance concerns for enterprises
- Scanned PDFs slow down vision layout parsing
- Spreadsheets over 200,000 rows may trigger timeouts
- Large files consume context budget quickly (50MB PDF ≈ 200K tokens)
- Big Brain mode release has been delayed pending launch
- No access to real-time events without search tools enabled
- Grok API has lower message rate limits than some competitors
Frequently asked questions about grok.com
What is Grok AI?
Grok is an AI-powered assistant developed by xAI, founded by Elon Musk in 2023. It is designed to be maximally truthful, useful, and curious, with real-time web and X (Twitter) data access, a 2-million-token context window, built-in code execution, image generation, and voice interaction. Grok is accessible via grok.com, iOS, Android apps, and integrated into X.
Is Grok free to use?
Yes, Grok offers a free tier that includes access to Grok 4 and Grok 4.1 models, standard web and X search, basic image generation, voice mode with limited session lengths, and 10 queries every two hours plus up to 3 image analyses per day. This positions Grok's free offering above competitors that restrict advanced models to paid tiers.
What is DeepSearch mode?
DeepSearch is a next-generation search engine feature that queries the web and X simultaneously, going through about 100 pages, X profiles, and more to perform reasoning and create cited research reports. It is similar to OpenAI's Deep Research and can answer complex questions like Starship launch dates with correct, sourced answers.
What is Big Brain mode?
Big Brain mode is a reasoning feature for complex tasks requiring more computational power, similar to OpenAI's high-level reasoning efforts. It performs extended multi-step reasoning and achieves better results on benchmarks compared to models like o03 Mini. The mode displays thinking traces so users can see Grok's reasoning process.
How much does SuperGrok cost?
SuperGrok costs $30 per month or $300 per year (a 16% discount equivalent to two free months). Subscribers receive significantly higher rate limits, priority routing for approximately 30% faster response times, and higher caps on advanced features like Think and DeepSearch (30 per two hours vs 2/day for free users).
What files can I upload to Grok?
Grok supports PDF, CSV, XLSX, TXT, Markdown, and ZIP archives containing source code. Each file can be up to 50 MB, with spreadsheets limited to 200,000 rows to avoid timeouts. When uploaded, Grok auto-invokes document_search for natural-language Q&A, table statistics, and formula explanations.
What is the Grok API pricing?
Grok 4.1 API costs $0.20 per million input tokens and $0.50 per million output tokens, undercutting GPT-4o and all Anthropic models. Grok 4.1 Fast has the same input price with reduced latency. Grok 4.3 costs $1.25 per million input tokens and $2.50 per million output tokens. Voice API is $3.00/hour for agents, $15.00 per million characters for TTS.
How do I sign in to Grok?
On the Grok Website, go to Settings -> Account and click the Connect your X Account button. You can manage sign-in methods at https://accounts.x.ai. Grok requires an X account connection for authentication.
What is Grok's context window size?
Grok has a 2-million-token context window, which exceeds what OpenAI, Google, and Anthropic offer in their standard consumer products. This makes Grok particularly suited for processing long documents, codebases, or extended research sessions. However, large files consume this budget quickly—a 50MB PDF is roughly 200K tokens.
How does Grok compare to ChatGPT and Claude?
Grok's primary advantage is real-time X data access and a 2-million-token context window at lower API costs. However, Grok's output quality on nuanced creative and analytical tasks trails ChatGPT and Claude, which consistently produce more polished results. Grok also has less restrictive content moderation, which some users prefer but may present enterprise compliance concerns.