Nemotron-Mini 4B on Apple M2 Ultra · 192GB

✅ Runs comfortably — Nemotron-Mini 4B @ Q8_0
Nemotron-Mini 4B 4B at Q8_0 needs ~5.7 GB (weights 4.2 GB + KV 1.0 GB + overhead 512 MB @ 8K ctx) of your 141 GB usable (of 192 GB unified memory) — plenty of headroom. Expect ~45–75 tok/s (very fast).
context @ Q8_0: comfortable to 4K
quantneedsspeed
✓ Q8_05.7 GB~45–75 tok/s (very fast)
✓ Q6_K4.7 GB~55–95 tok/s (very fast)
✓ Q4_K_M4.0 GB~65–110 tok/s (very fast)
$runlocal install nemotron-mini:4b
runlocal verdict card
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Nemotron-Mini 4B: Runs comfortably
for your own README — links back here

Same model, other machines: Apple M1 · Apple M1 Pro · Apple M2 · Apple M3 Pro · Apple M2 Pro · Apple M4 Pro

Also runs on a Apple M2 Ultra: DeepSeek-R1 (distill) · Qwen3 · Qwen2.5 · Llama 3.1 · Llama 3.3

Best models for a Apple M2 Ultra · 192GB →

Architecturally similar

These share Nemotron-Mini 4B's KV-cache geometry — they size memory the same way, so here's how they fit on a Apple M2 Ultra · 192GB too:

modelsharesverdict here
Qwen2.5-Coder 8kv/128hd ✅ Runs comfortably
Llama 3.2 8kv/128hd ✅ Runs comfortably
Mistral 7B 8kv/128hd ✅ Runs comfortably
Mistral Small 3 8kv/128hd ✅ Runs comfortably
Mistral Nemo 8kv/128hd ✅ Runs comfortably
Codestral 8kv/128hd ✅ Runs comfortably
Llama 3.2 Vision 8kv/128hd ✅ Runs comfortably
Mixtral 8x7B 8kv/128hd ✅ Runs comfortably

…and 6 more — see the Nemotron-Mini 4B page.

Check any combo yourself: open the checker →