The M4 Pro with 14‑core CPU & 20‑core GPU can do 48GB.

If you're looking for ~>36-48GB memory, here's the options:

$2,800 = 48GB, Apple M4 Pro chip with 14‑core CPU, 20‑core GPU

$3,200 = 36GB, Apple M4 Max chip with 14‑core CPU, 32‑core GPU

$3,600 = 48GB, Apple M4 Max chip with 16‑core CPU, 40‑core GPU

So the M4 Pro could get you a lot of memory, but less GPU cores. Not sure how much those GPU cores factor in to performance, I only really hear complaints about the memory limits... Something to consider if looking to buy in this range of memory.

Of course, a lot of people here probably consider it not a big deal to throw an extra 3 grand on hardware, but I'm a hobbyist in academia when it comes to AI, I don't big 6-figure salaries :-)

M4 Max 14 core has a single option of 36GB.

M4 Max 16 core lets you go up to 128GB.

So you can actually get more ram with the Pro than the base level Max.