Can I run this LLM?
Can a Mac Studio M3 Ultra (96GB) run GPT-OSS 120B (MoE)?
GPT-OSS · Apache 2.0 · estimated for a 96.0 GB machine at 4K context.
Yes, but it's tight.
Best fit: GPT-OSS 120B (MoE) at FP16 · 65.4 GB · 87–130 tok/s on a Mac Studio M3 Ultra (96GB).
Every quantization on this machine
| Quant | Size | Speed | Fit |
|---|---|---|---|
| Q2_K | 62.6 GB | 88–133 tok/s | Tight / slow |
| Q3_K_M | 62.6 GB | 88–132 tok/s | Tight / slow |
| Q4_K_M | 62.8 GB | 88–132 tok/s | Tight / slow |
| Q5_K_M | 62.9 GB | 88–132 tok/s | Tight / slow |
| Q6_K | 63.3 GB | 88–132 tok/s | Tight / slow |
| Q8_0 | 63.4 GB | 88–132 tok/s | Tight / slow |
| FP16 | 65.4 GB | 87–130 tok/s | Tight / slow |
Open the full calculator →Everything a Mac Studio M3 Ultra (96GB) runsGPT-OSS 120B (MoE) on other machinesWhat to buy to run it →
Ran GPT-OSS 120B (MoE) on a Mac Studio M3 Ultra (96GB)? Add your real numbers →