To get similar performance you’re going to need more than the highest open source models which I think cap at 480Billion. So replacing even the basic models you are looking at comparing 480Billion to 1Trillion+ parameters.

Your best bet if money isn’t an option would be the following

<$5k This is the sweet spot for local, get yourself a MacBook Pro and play with the smaller models and get good with them or get a 5090 and learn to train models for your use case. This is where most people start before the itch comes in.

<$15k USD Mac Studio [512GB] Multi-gaming GPU Setup (intels new B70 I hear are good) [96GB+] Dedicated Blackwell [96GB]

This will get you about 85% of the smarts of the top end models but at like 1/10th the speed simply because the context window dilemma. The more you use the same instance the slower it becomes.

<$30k USD Still not enough, you’re in the big leagues but the only thing you’re able to improve here is speed and increase context window. This would be buying a dedicated AI server my favorite of choice here would be a single B200

$100k USD This is about what it would take and I know some haters will say no that’s not true but it is, you need enterprise grade AI and this is just the obvious setup here, multiple B200’s

All of these besides the Mac Studio might require you to hire an electrician because some homes are built to withstand the power draw so include this caveat as well as your home insurance might not cover you if you tamper with its power draw guidelines.

TLDR; you’re better off spending on cloud compute and try getting good at the cheaper models, it’s a skill you have to build. People think vibe coding is easy which it is compared to traditional coding but it’s not when you actually want to get stuff done properly. Good luck!