OLMo 2 13B needs ~18.2 GB VRAM. Mac Studio M1 Ultra 64GB has 46.1 GB. With Q4_K_M quantization, expect ~60 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
59.9 tok/s
TTFT
3231 ms
Safe context
33K
Memory
18.2 GB / 46.1 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 | A | Runs well | 59.9 tok/s | 1762 ms | 33K |
| Coding | A | Runs well | 59.9 tok/s | 3231 ms | 33K |
| Agentic Coding | A | Runs well | 59.9 tok/s | 4699 ms | 33K |
| Reasoning | A | Runs well | 59.9 tok/s | 3818 ms | 33K |
| RAG | A | Runs well | 59.9 tok/s | 5874 ms | 33K |
How OLMo 2 13B (13B params) fits at each quantization level on Mac Studio M1 Ultra 64GB (46.1 GB usable).
| Quant | Bits | VRAM | Quality | Fit |
|---|---|---|---|---|
Q2_K | 2 | 5.1 GB | Low | B69 |
Q3_K_S | 3 | 6.4 GB | Low | B69 |
NVFP4 | 4 |
Copy-paste commands to run OLMo 2 13B on your machine.
Run
docker run --rm -it ghcr.io/ggerganov/llama.cpp:full \
--hf-repo "allenai/OLMo-2-13B-Instruct" \
--hf-file "OLMo-2-13B-Instruct-Q4_K_M.gguf" \
-c 4096 -ngl 99Your hardware
| Model | Params | Grade | Decode | Capabilities |
|---|---|---|---|---|
 Qwen3-Coder 30B A3B Instruct | 30.5B | S | 66.5 tok/s | |
| Qwen 3.5 27B | 27B | S | 28.9 tok/s |
Yes, Mac Studio M1 Ultra 64GB can run OLMo 2 13B with a A grade (Runs well). Expected decode speed: 59.9 tok/s.
OLMo 2 13B (13B parameters) requires approximately 18.2 GB of memory with Q4_K_M quantization.
The recommended quantization for OLMo 2 13B is Q4_K_M, which balances quality and memory efficiency.
On Mac Studio M1 Ultra 64GB, OLMo 2 13B achieves approximately 59.9 tokens per second decode speed with a time-to-first-token of 3231ms using Q4_K_M quantization.
For coding workloads, OLMo 2 13B on Mac Studio M1 Ultra 64GB receives a A grade with 59.9 tok/s and 33K context.
On Mac Studio M1 Ultra 64GB, OLMo 2 13B can safely use up to 33K tokens of context. The model's official context limit is 33K, but available memory constrains the safe maximum.
Paste this snippet into any page to show a live fit card.
<iframe src="https://willitrunai.com/embed/olmo-2-13b-on-m1-ultra-64gb" width="400" height="180" frameborder="0" style="border:none;border-radius:12px;overflow:hidden;" title="Will It Run AI — fit result"></iframe>
Preview:
7.3 GB |
| Medium |
| B69 |
Q4_K_M | 4 | 7.9 GB | Medium | B69 |
Q5_K_M | 5 | 9.4 GB | High | B70 |
Q6_K | 6 | 10.7 GB | High | A70 |
Q8_0 | 8 | 13.9 GB | Very High | A71 |
F16Best for your GPU | 16 | 26.7 GB | Maximum | A75 |
| Qwen 3.6 27B | 27B | S | 21.9 tok/s |
| Qwen 3.6 35B A3B | 35B | S | 55.9 tok/s |
| Qwen3-VL 30B A3B Instruct | 30B | S | 68.8 tok/s |
Not always. Mac Studio M1 Ultra 64GB 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.