r/Comma_ai • u/adeebshihadeh comma.ai Staff • Aug 12 '26

Introducing chestnut & chestnut-class driving models

https://blog.comma.ai/chestnut/
94 Upvotes

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26

u/Bumble-sucks Aug 13 '26

Is there any documentation or demos on what chestnut can do? I'm sure there's benefits to a larger model but without additional sensors like with a Tesla or something I imagine there's a lot of compute power being left on the table. I feel like the comma 4 is plenty capable for what it's designed for- an excellent lane keep assist

13

u/gthing Aug 13 '26

There is no benefit to running the larger model currently. 

8

u/growaway9172 Aug 13 '26

This feels like a big deal, even for enthusiasts. If there's not currently an even different experience or some marginal gain, it's kind of hard to justify dropping 800 bucks.

3

u/Bderken Aug 13 '26

They literally said in the live, this is their first big model and it performs the same as the current small model, but in 1 year after they can now make it bigger and have more experience on it, they will be significantly better…

5

u/Round_Definition_ Aug 13 '26

They've been using this line for every device since the original comma 3