what are you using on yours? I've got a M4 Pro 24GB also. tried the open source gpt one. it's alright but I found it can get stuck at times. maybe just my config in LM Studio.
pi + Qwen3-4B-Instruct-2507 / Qwen3.6-35B-A3B-4bit / Qwen3.6-40B-Claude-4.6-Opus-Deckard-Heretic-Uncensored-Thinking-4.5bit-msq depending how seat-of-pants I want to fly on memory.