Tesla shares rose 2.2% in premarket trading today after Elon Musk shared fresh insights into its fast-moving internal AI chip efforts.

In a statement on X, the CEO of Tesla said the company has been quietly running an in-house AI chip and board design team for years, already deploying millions of custom AI chips across its cars and data centers to power its real-world AI leadership.

The company is iterating fast, with AI4 in cars today, AI5 nearly ready to tape out, and AI6 in early development, targeting a new high-volume chip every 12 months and ultimately more units than all other AI chips combined.

Musk claimed these chips would save millions of lives via safer driving and enable advanced medical care through Optimus.