Grok
xAI
xAI was founded by Elon Musk in 2023 with a stated mission to understand the true nature of the universe — and to build AI that is maximally curious and truth-seeking. Read more →
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xAI was founded by Elon Musk in 2023 with a stated mission to understand the true nature of the universe — and to build AI that is maximally curious and truth-seeking. Its first product, Grok, launched inside X (formerly Twitter) with a key advantage no other AI assistant had at the time: real-time access to the entire stream of posts on the platform. Grok 3, released in 2025, placed xAI firmly among the top tier of frontier model labs, competing directly with OpenAI, Anthropic, and Google.
Timeline
xAI founded by Elon Musk; Grok announced as AI assistant for X.
Grok-1 released to X Premium subscribers — first AI with live X feed access.
Grok-1 open-sourced; Grok-1.5 released with improved reasoning.
Grok-2 released; Aurora image generation added to Grok on X.
Grok-3 released — benchmarks place it among the top frontier models globally.
xAI and X officially merge; Grok rolls out across the standalone Grok app.