# Grok 3 Grok 3 is the third-generation [[Grok]] model from [[xAI]], the predecessor to [[Grok 4]] and the line that first brought xAI within touching distance of the established frontier labs. It is the umbrella for the 3.x minor releases. ## Positioning - Closed-weight; hosted via X (`@grok`), grok.com, and the xAI API - Multimodal across text and image - The release where xAI's reasoning, multi-step tool use, and X-platform agentic flows became taken seriously by the community - Distribution moat: native integration with the X platform ## Why it matters in the version chain - The first Grok generation widely benchmarked against [[Claude]], [[GPT4]] / GPT-5 series, and [[Gemini]] - Sets the baseline that [[Grok 4]] and [[Grok 4.3]] are measured against - Marks the transition of xAI from "interesting upstart" to "frontier participant" ## Caveats - xAI did not publish complete model cards at the 3.x minor-version granularity - Most public comparison numbers come from third-party launches; treat directionally - Variants and tiering have shifted under the Grok 4.x branding; current xAI docs should be the source of truth ## References - xAI: https://x.ai/ - Grok docs: https://docs.x.ai/ ## Related - [[Grok]] - [[Grok 4]] - [[Grok 4.3]] - [[xAI]] - [[Elon Musk]] - [[Large Language Models (LLMs)]] - [[AI Frontier Model]]