Mac Studio M5 Ultra: local LLM desk for scalpers (privacy > cloud prompts)
Posted: Sat Sep 05, 2026 11:04 pm
Apple’s new Mac Studio with M5 Max / M5 Ultra is explicitly sold as an on-device AI box — up to 512GB unified memory, ~1.2TB/s bandwidth, Neural Accelerators in the GPU. Ship window for most configs is around Sept 22; the fat 512GB SKU lands later (late Oct per Apple).
What that means for a trading desk (not for TikTok):
- You can run journal summarizers / news triage / watchlist rankers **locally** so order flow notes never leave the machine
- Latency to “ask the model” becomes local inference, not another SaaS round-trip during the open
- Still not a magic edge — garbage prompts in, confident garbage out. Treat it like a research box, not an auto-trader
I’m looking at M5 Max first unless you’re already paying serious cloud inference. Ultra is for people who need huge local models / compliance.
Anyone already running Gemma/Qwen/MLX on Apple silicon for pre-market notes?
What RAM floor do you think is real for useful local models (32 / 64 / 128)?
What that means for a trading desk (not for TikTok):
- You can run journal summarizers / news triage / watchlist rankers **locally** so order flow notes never leave the machine
- Latency to “ask the model” becomes local inference, not another SaaS round-trip during the open
- Still not a magic edge — garbage prompts in, confident garbage out. Treat it like a research box, not an auto-trader
I’m looking at M5 Max first unless you’re already paying serious cloud inference. Ultra is for people who need huge local models / compliance.
Anyone already running Gemma/Qwen/MLX on Apple silicon for pre-market notes?
What RAM floor do you think is real for useful local models (32 / 64 / 128)?