Tesla's HW4.5: Unveiling the Speculation (2026)

Tesla HW4.5 spotted in new Model Y, sparks speculation

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Tesla HW4.5 in Model Y

Tesla owners are spotting a new component labeled 'AP45' in their recently delivered Model Y vehicles, sparking speculation about an interim upgrade before the upcoming AI5 chip. This 'AP45' part, confirmed by owners, suggests Tesla may be quietly rolling out revised autonomy hardware.

What's the Deal with HW4.5?

Clues about HW4.5 have appeared in Tesla's Electronic Parts Catalog, listing a 'CAR COMPUTER – LEFT HAND DRIVE – PROVISIONED – HARDWARE 4.5' component. This hints at a possible three-system-on-chip architecture, which could offer higher inference throughput and improved fault tolerance, bridging the gap to the next-gen AI5 chip.

Controversy & Speculation

The appearance of HW4.5 in Model Y units, despite no official announcements, raises questions about Tesla's strategy. Is this a temporary fix or a permanent upgrade? The answer could significantly impact the future of Tesla's autonomy capabilities.

Stay Tuned

As the story unfolds, we'll keep you updated on any official Tesla statements and further developments. Stay tuned for more on this exciting (and potentially controversial) tech advancement!

Tesla's HW4.5: Unveiling the Speculation (2026)

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