Raises estimated decode speed by about 207%.
~$15,000 MSRP
Codestral 21B Pruned i1 needs ~26.5 GB VRAM. Mac Studio M3 Ultra 96GB has 69.1 GB. With Q4_K_M quantization, expect ~44 tok/s.
Operating mode
Interactive favors responsiveness, while light API and scale-out lean harder on serving readiness. The fit stays the same, but the recommendation lens changes.
Current mode
Balanced
Balanced for general local use. Keeps the ranking neutral across personal and serving workflows.
Select quantization to explore
Fit status
Runs well
Decode
43.5 tok/s
TTFT
4453 ms
Safe context
293K
Memory
26.5 GB / 69.1 GB
This setup is broadly balanced for this model.
Shared-memory contention still exists
The OS, browser, and inference runtime all compete for the same physical memory pool, so real-world headroom is less forgiving than raw capacity suggests.
| Workload | Grade | Fit | Decode | TTFT | Context |
|---|---|---|---|---|---|
| Chat | C | Runs well | 43.5 tok/s | 2429 ms | 293K |
| Coding | C | Runs well | 43.5 tok/s | 4453 ms | 293K |
| Agentic Coding | C | Runs well | 43.5 tok/s | 6477 ms | 293K |
| Reasoning | C | Runs well | 43.5 tok/s | 5263 ms | 293K |
| RAG | C | Runs well | 43.5 tok/s | 8097 ms | 293K |
How Codestral 21B Pruned i1 (21B params) fits at each quantization level on Mac Studio M3 Ultra 96GB (69.1 GB usable).
| Quant | Bits | VRAM | Quality | Fit |
|---|---|---|---|---|
Q2_K | 2 | 8.2 GB | Low | C40 |
Q3_K_S | 3 | 10.3 GB | Low | C40 |
NVFP4 | 4 | 11.8 GB | Medium | C41 |
Q4_K_M | 4 | 12.8 GB | Medium | C41 |
Q5_K_M | 5 | 15.1 GB | High | C41 |
Q6_K | 6 | 17.2 GB | High | C42 |
Q8_0 | 8 | 22.5 GB | Very High | C43 |
F16Best for your GPU | 16 | 43.1 GB | Maximum | C47 |
Copy-paste commands to run Codestral 21B Pruned i1 on your machine.
Run
lms load hf-mradermacher--codestral-21b-pruned-i1-gguf && lms server start升级选项
Raises estimated decode speed by about 207%.
~$15,000 MSRP
Raises estimated decode speed by about 171%.
~$15,000 MSRP
Yes, Mac Studio M3 Ultra 96GB can run Codestral 21B Pruned i1 with a C grade (Runs well). Expected decode speed: 43.5 tok/s.
Codestral 21B Pruned i1 (21B parameters) requires approximately 26.5 GB of memory with Q4_K_M quantization.
The recommended quantization for Codestral 21B Pruned i1 is Q4_K_M, which balances quality and memory efficiency.
On Mac Studio M3 Ultra 96GB, Codestral 21B Pruned i1 achieves approximately 43.5 tokens per second decode speed with a time-to-first-token of 4453ms using Q4_K_M quantization.
For coding workloads, Codestral 21B Pruned i1 on Mac Studio M3 Ultra 96GB receives a C grade with 43.5 tok/s and 293K context.
On Mac Studio M3 Ultra 96GB, Codestral 21B Pruned i1 can safely use up to 293K tokens of context. The model's official context limit is —, but available memory constrains the safe maximum.
Not always. Mac Studio M3 Ultra 96GB can often fit larger models thanks to unified memory, but a discrete GPU with dedicated high-bandwidth VRAM may still decode faster once the model fits. For this combination, the important distinction is capacity versus sustained throughput.
Paste this snippet into any page to show a live fit card.
<iframe src="https://willitrunai.com/embed/hf-mradermacher--codestral-21b-pruned-i1-gguf-on-m3-ultra-96gb" width="400" height="180" frameborder="0" style="border:none;border-radius:12px;overflow:hidden;" title="Will It Run AI — fit result"></iframe>
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