xAI
In plain wordsAn artificial intelligence company founded by Elon Musk in 2023 that makes the Grok chatbot. It is now part of Musk's rocket company, SpaceX.
An American AI company that develops the GrokGrok, prop. n.: The AI chatbot and model family of Elon Musk's company xAI, launched in 2023 and built into the social network X. It is known for its irreverent style and for repeated controversies over its outputs. chatbotchatbot, n.: Software you chat with in ordinary language, by typing or talking, as you would with a person. The newest ones, such as ChatGPT, can answer questions, draft writing and keep long conversations going. and language modelslarge language model, n.: A computer program trained on enormous amounts of text to predict the words that come next. At vast scale, that simple skill lets it chat, answer questions, translate, summarize and write code., integrated into the social network X. It is known for building compute at unusual speed: its Colossus AI supercomputerAI supercomputer, n.: A huge network of AI chips — often tens or hundreds of thousands — wired together in a data center to train the largest AI models. in Memphis, Tennessee, assembled in 2024, grew into one of the world's largest GPU installations, while its use of gas turbines without the necessary permits drew environmental complaints. Marketed as less restricted than rival assistants, Grok has produced repeated controversies, including antisemitic posts in July 2025 and, around the turn of 2026, the use of its image tool to create sexualized deepfakesdeepfake, n.: A fake but realistic video, photo or voice recording made with AI that puts words in a real person's mouth or shows them in a scene that never happened. of real people without consent, which prompted regulatory investigations in several countries. xAI released the weights of Grok-1 in 2024 and in October 2025 launched Grokipedia, an AI-generated online encyclopedia. As of October 2026 it is owned by SpaceX and operates under the name SpaceXAI.
Origin
Incorporated by Elon Musk in March 2023 and announced in July 2023 with founding researchers drawn from DeepMind, OpenAI, Google and elsewhere. It acquired X Corp. (formerly Twitter) in an all-stock deal in March 2025. SpaceX acquired xAI in February 2026, and in July 2026 xAI was rebranded as SpaceXAI.
Usage note
Not to be confused with XAI, an abbreviation for explainable AIexplainable AI, n.: The field and set of methods that let people understand why an AI system produced a particular output — for example, which factors led it to reject a loan application..
Related
- Elon MuskElon Musk, prop. n.: A South African-born American entrepreneur who runs Tesla and SpaceX, co-founded OpenAI, founded the AI company xAI, and has long warned that AI could endanger humanity.
- chatbotchatbot, n.: Software you chat with in ordinary language, by typing or talking, as you would with a person. The newest ones, such as ChatGPT, can answer questions, draft writing and keep long conversations going.
- AI supercomputerAI supercomputer, n.: A huge network of AI chips — often tens or hundreds of thousands — wired together in a data center to train the largest AI models.
- OpenAIOpenAI, prop. n.: The American company that makes ChatGPT and the GPT models. It began in 2015 as a nonprofit research lab and is now a for-profit company overseen by a nonprofit foundation.
- deepfakedeepfake, n.: A fake but realistic video, photo or voice recording made with AI that puts words in a real person's mouth or shows them in a scene that never happened.
- explainable AIexplainable AI, n.: The field and set of methods that let people understand why an AI system produced a particular output — for example, which factors led it to reject a loan application.
Mentioned in
Elon MuskElon Musk, prop. n.: A South African-born American entrepreneur who runs Tesla and SpaceX, co-founded OpenAI, founded the AI company xAI, and has long warned that AI could endanger humanity., explainable AIexplainable AI, n.: The field and set of methods that let people understand why an AI system produced a particular output — for example, which factors led it to reject a loan application., Dan HendrycksDan Hendrycks, prop. n.: An American AI-safety researcher who created widely used AI tests such as MMLU and Humanity's Last Exam, and who runs the Center for AI Safety., GrokGrok, prop. n.: The AI chatbot and model family of Elon Musk's company xAI, launched in 2023 and built into the social network X. It is known for its irreverent style and for repeated controversies over its outputs., CursorCursor, prop. n.: A code editor built around AI, in which programmers can ask a model to write, change or explain code across a whole project, or hand it tasks to finish on its own.