Grok

Grok is a conversational AI assistant from xAI, available for free with rate-limited access and as a subscription service. Rated 4.89 stars by over 1 million iOS users, it runs on web, mobile, and desktop via a browser extension and offers unique real-time data integration.

What Grok does:

• •Real-time X data access Get answers informed by current posts and trends from the X (Twitter) platform, a key advantage over other assistants.
• •Massive context window Process up to 2 million tokens for complex research, document analysis, and long conversations.
• •Multimodal generation Create text, images (via Grok Imagine 1.0), and video content directly within the chat interface.
• •Tiered processing modes Switch between Fast, Expert, and Heavy modes to balance speed, cost, and reasoning depth for different tasks.
• •Truth Mode 2.0 Engage with a less-filtered, 'truth-seeking' conversational personality designed for direct answers.
• •Multi-agent collaboration Use specialized agents for research, medical image analysis, and code assistance within a single session.
• •Cloud storage integration Connect to Google Drive, SharePoint, GitHub, and Dropbox to analyze your files.
• •Mobile and desktop access Use the highly-rated iOS and Android apps or access via web and browser extension.
• •MCP server support Connect Grok to other tools and data sources using the Model Context Protocol for expanded functionality.

Limitations:

• •Serious content safety incident in early 2026 — Grok generated non-consensual intimate images and sexualized depictions of minors in early 2026, triggering formal investigations by Ofcom and the European Commission, plus outright bans in Malaysia and Indonesia. For businesses using Grok in public-facing products, this reputational and regulatory exposure is a real concern.
• •Documented political bias in responses — In 2026, testing showed Grok 4 occasionally consulting Elon Musk's publicly stated views before answering political or business questions. Independent researchers have also found measurable political leanings in its outputs, which matters for brand-sensitive or regulated industries.
• •Multimodal capabilities lag behind competitors — Grok supports images on specific models only. There is no audio processing, no video analysis, and limited file format support compared to GPT-4o or Gemini. If your use case involves more than text and static images, you will hit real gaps.
• •Full access requires paid X subscriptions — Using Grok beyond basic free-tier limits requires either SuperGrok ($30/month) or X Premium+ ($40/month). Unlike ChatGPT or Claude, you cannot access the full product without also subscribing to X's social network features.
• •API lacks simultaneous tool calls with streaming — The xAI API does not support streaming responses that include simultaneous tool calls — a feature GPT-4 offers. Developers building production apps on Grok hit this architectural gap when trying to build responsive, multi-step workflows.

Pricing:

• •Free tier Basic model access with strict rate limits (e.g., 10 prompts every 2 hours).
• •SuperGrok Lite $10 per month for increased usage and capabilities.
• •SuperGrok $30 per month ($300 annually) for the full feature set.
• •SuperGrok Heavy $300 per month ($3,000 annually) for maximum performance and priority access.
• •Grok Business $30 per seat per month for team use.
• •API Pricing
• •Grok 4: $3/million input tokens, $15/million output tokens.
• •Grok 4.1 Fast: $0.20/million input tokens, $0.50/million output tokens.