Tesla Quietly Debuts New AI4.5 Hardware in New Model Ys

Interesting. I plan on ordering my Juniper on September 1st this year. I wonder if my MY will have AP5 by then.

no, it won’t. Elon said rollout next year and he never underpromise

Until it's known what's the difference, this is an enigma. It might be something very minor or critical.

My lease is up next May, really hoping AI5 is out by then. Can’t stomach buying a car with Hw4 that close to its release

I just got a tm3p with front camera, how can I check my AP version ?

Or maybe Elon doesn't know. He's not spending too much time with the company, and as a CEO, he can't be the bottleneck for all information what's happening.

Will be interested to see what the difference is after they get into it

My bet is that this is a redundancy move for safety rather than actual capability increase. Last I heard HW4.5 is basically HW4 + an extra SOC, so instead of 2 SOCs, you now have 3. One problem they had previously was that the original design for FSD was that it would run entirely on 1 SOC in HW3, then have a second SOC be the back-up in case the primary one fails. Unfortunately due to the increase in compute requirements, as they tried to scale FSD up, they ended up using both SOC's as the models needed to handle those edge cases kept growing and ran out of compute. Adding a 3rd SOC either is a redundancy or they'll just continue to creep into the need to expand more models where there would be a meaningful feature difference between HW4 and 4.5. Also interesting for reference, is that HW4 was rumored to be around 500-600 TOPs (4x to 5x HW3 @ 144 TOPs) running 7+1 camera, While Rivian currently has 800 TOPs running 10+1 cameras, lidar, 12 USS. AI5 is rumored to be around \~2500 TOPs but that may all change due to the latest design changes.

No lol

That’s why I was back-and-forth on the lease you have to upgrade on their schedule

Well, that is current timeline, so any slip and you are out of luck. Slips happen often with Elon. So if you really want HW5, plan what you’ll do for ~half a year, maybe more. HW4 rollout took more than a year depending on which factory and which model you ordered

prepare to be disappointed. His timelines are usually what his engineers tell him is best case scenario if everything goes right

Yeah I hear ya. I just refuse to buy one until it can drive me unsupervised. Seems like a sure thing with AI5

Haha I’ve been thinking about it. Either will have to do a long term rental or buy a beater for a while

Tesla leases are nice with the 6500 discount - if they didn’t have that - it’s way better to finance then sell and upgrade But maybe with EVs it’s not the same Hopefully you didn’t math lol

Try this: https://www.reddit.com/r/TeslaLounge/comments/1qmv1xa/2026_model_y_performance_fsd_hardware_45/o1pan0p/ They say you can see via your VIN, or looking at the hardware itself. I have a M3P on order.. so I'm curious if you have it.

Not sure how many engineers lost their jobs over the years for this.

it says : FUSED COMPUTER - LEFT HAND DRIVE - HARDWARE 4.0 2001418-S0-F so HW4.0 i think because the part number

Yeah, you're right. Both say 4.0 in the system, but the part number confirms it's 4.0 and not 4.5. Thank for checking.

Now, we must hope that there will be no major difference between 4.0 and 4.5… Got my tm3p 31/12 🫠

I don't think there will be any major changes in 4.5, especially with 5.0 announced for July of 2027. Otherwise, I feel like something would have been announced about 4.5. But we shall see!

It's possible it's just smaller so it can fit in HW3 cars

Watch it just be an MCU upgrade lmao

AI5 just finished designing review and isn’t in production yet, it’s unlikely and probably why 4.5 exists

Is the 16-inch display version of the Model Y Juniper 2026, which was shipped from Shanghai, China, AP45? Can you confirm it?

Not getting my hopes up, but it would be cool if this was a model that has changes to make it retrofit-able into HW3 cars ...

Just announced in the earnings call today that it was a mislabel and there is no HW4.5. New cars are still HW4

So the three chip solution I wonder if this is what it will allow it to pass the redundancy so that it can truly be autonomous. Where if two chips agree it will choose that path. Also have a backup. As opposed to the backup of a different type of sensor, just the backup of a different processor So then the question would become with any of us without three ships ever get fully autonomous

Why does it have any part# and price of $2300?

Today confirim. HW4.0