ChatGPT
OpenAI
OpenAI's ChatGPT — the world's most widely used AI assistant and the GPT family's official entry point.
Grok by xAI
Vendor: xAI · Global Models · Updated 2026-08-30
Free tier; X Premium or SuperGrok for heavy use
MultimodalCoding
Grok is xAI's assistant, unique for its real-time access to the X (formerly Twitter) firehose — strong at current events and live discussions. Available standalone at grok.com and inside X; free tier with paid plans for heavier use.
Key features
- Real-time X feed access
- Current-events Q&A
- Image understanding and generation
- DeepSearch live retrieval
Similar models
Claude
Anthropic
Anthropic's assistant — top-tier long-form writing, code quality and the Claude Code agent.
Doubao
ByteDance
ByteDance's free AI assistant for chat, writing, image generation, voice calls and agent bots.
DeepSeek
DeepSeek (Hangzhou)
High-performance reasoning and coding model family, famous for open weights and ultra-low API prices.
FAQ about Grok
What is Grok's official website?
The official site is https://grok.com/ (verified 2026-08-30). Bookmark this page for quick access.
Is Grok free?
Free tier; X Premium or SuperGrok for heavy use. Basics are free; advanced use needs a subscription or usage-based payment — see the official page.
Who makes Grok?
Grok is built by xAI.