SpaceX IPO filings reveal its subsidiary xAI purchased $303 million in goods and services from Tesla between January and April 2026.

xAI spent $269 million in April alone on Tesla Megapack energy storage units.

These Megapacks provide the reliable power required for xAI’s artificial intelligence data centers.

The transactions follow hundreds of millions in similar deals throughout 2025.

These purchases provide a significant revenue stream for Tesla’s energy division.