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xAI's large language model and assistant, integrated with the X platform and positioned around real-time information and a conversational style.
Grok is the assistant built by xAI, first announced in late 2023. It is a Transformer-based large language model offered through the X platform and standalone apps, marketed around access to current information and a distinctive conversational tone.
Grok completes the set of four frontier assistants — alongside ChatGPT, Claude and Gemini — that MultipleChat runs together for side-by-side comparison.
Primary, peer-reviewed and archival sources for this definition.
Run the same prompt across ChatGPT, Claude, Gemini, Grok and Perplexity side by side — with your own files as context and answers you can cross-check.
Try MultipleChat FreeContinue learning
Use several frontier models together for stronger answers and fewer blind spots.
ComparisonCompare several AI answers side by side when the output matters.
PricingSee the AI subscription that replaces separate ChatGPT, Claude, Gemini, Grok and Perplexity accounts.
Multi-model AIRun the same prompt through available ChatGPT, Claude, Gemini and Grok models and compare their answers.
GuideChoose the best model for writing, research, coding, documents, images and business work.
AlternativeUse ChatGPT alternatives together: Claude, Gemini, Grok, Perplexity, files, web search and creation tools.
