Tesla's owner's manuals now call the car's self-driving computer the "SI Computer" rather than the "AI Computer." Not a Tesla App reported on Oct. 27, 2026 that the change appears in the Model 3, Model Y and Cybertruck manuals. Drive Tesla Canada said it is tied to the manual for software 2026.38.3. Under the new naming, AI4 would become SI4.
What the manual says now
- Climate Controls (Pet Mode and Sentry Mode cabin camera note): the feature "is not supported in vehicles with SI Computer 2.0 or 2.5. Touch Controls > Software and look at SI Computer to find out which computer your vehicle has." It previously said "AI computer."
- Model Y FSD section, per Not a Tesla App: "The SI Computer installed in Model Y is designed to use this input, rapidly process neural networks, and make decisions."
Not on the screen yet
Drive Tesla Canada said a car it checked on 2026.38.5.1 still shows "AI Computer: Full Self-Driving Computer 3" on the Software screen. Tesla hasn't officially announced the rename.
Why "SI"
Both outlets tie the change to the rebrand of Tesla AI to Tesla Super Intelligence (Tesla SI). That followed SpaceX's switch to SpaceXSI and a Sept. 29 executive order telling federal agencies to use "Super Intelligence" in place of "Artificial Intelligence." For background on SpaceXSI, see our SpaceXSI partner network story.
What it means for owners
Nothing changes about the hardware. Not a Tesla App notes the next-generation AI5 chip could launch as SI5 under the same scheme. That is the outlet's reading of the naming, not a Tesla statement.
