Musk’s xAI Raises $6 Billion in Series C Funding

xAI has completed a $6 billion Series C funding round, attracting investments from prominent firms such as Andreessen Horowitz (a16Z), BlackRock, Sequoia Capital, NVIDIA and AMD, among others. According to their blog, the funding will help the company’s efforts to expand its infrastructure and accelerate AI research. 

“Really proud of the team for all the crazy things we executed in lightning time! Here's to greater heights in 2025!” xAI co-founder Greg Yang posted on X. In reference to the recent funding, xAI CEO Elon Musk took to X to share that “a lot of compute is needed”.

Notably, Musk co-founded OpenAI alongside Sam Altman. In 2023, he departed to compete with established AI labs like OpenAI and Anthropic. Earlier this year, OpenAI secured $6.6 billion in funding from investors, including Thrive Capital, NVIDIA, Microsoft, and SoftBank Group.

“$12B raised this year since Grok-1 was launched a year ago. We're building AI end-to-end; we're building our own supercomputer and our own human data team. Grok-3 will be the most powerful engine,” said Mat Roy, project lead at xAI. 

Musk aims to develop Artificial General Intelligence (AGI) while prioritising rigorous truth-seeking systems without ideological biases. The upcoming frontier model Grok 3 is envisioned as a major advancement, aiming to outperform existing AI models. 

xAI has introduced Colossus, the world’s largest AI supercomputer. It is powered by 1 lakh NVIDIA Hopper GPUs and will be operational within 122 days, with plans to expand to 2 lakh GPUs. xAI is currently training its next flagship model, Grok 3, which is likely to be released next year. 

Since its Series B announcement in May, xAI has introduced several key initiatives, including Grok 2, an advanced language model; Aurora, an image generation tool; and the xAI API, which provides developers with low-latency access to AI models globally. The integration of Grok with the X platform enhances real-time data analysis with features like web search and image generation.