Musk: xAI's Colossus 2 Nvidia chip count could double to 1.21 mln by year-end

Elon Musk's artificial intelligence company, xAI, is rapidly expanding its AI computing power.

On September 25, Musk announced on social media platform X that its AI computing cluster, Colossus 2, has already deployed 110,000 NVIDIA GB200 chips and 440,000 GB300 chips, totaling 550,000 chips. He indicated that the number of chips could more than double by the end of the year.

Expansion Timeline

Musk revealed that Colossus 2 will undergo significant capacity expansion:

• 220,000 GB300 chips are expected to be operational next week
• Another 220,000 GB300 chips are scheduled to come online in November
• If progress continues smoothly, an additional 220,000 GB300 chips may be deployed by the end of December

Projected Capacity

Under this expansion plan, Colossus 2 could add up to 660,000 GB300 chips by year-end, bringing the total number of chips to approximately 1.21 million — an increase of about 120% from the current 550,000 chips.

This means Colossus 2 will undergo a massive surge in computing capacity over the coming months, with nearly all new chips coming from NVIDIA's GB300 series.

Colossus 1 Status

Musk also disclosed that Colossus 1 currently operates with:

• 150,000 H100 chips
• 50,000 H200 chips
• 30,000 GB200 chips

Previously, xAI stated it planned to equip its data center in Memphis, Tennessee, with 1 million GPUs by 2026.

Strategic Implications

Musk's latest disclosure of the Colossus 2 expansion timeline indicates that xAI continues to rapidly scale its AI infrastructure. As GB300 chips come online, xAI's data center computing capacity will further increase by the end of this year, supporting its AI model training and inference needs.