text model · Olmo · macOS
Can I run Olmo 3.1 32B Instruct on Apple M5 (32GB)?
Yes. Olmo 3.1 32B Instruct runs on Apple M5 (32GB) at Q4_K_M (~20.3 GB of ~21 GB usable).
Fits at Q4_K_M (~20.3 GB of ~21 GB usable) but with little headroom. Close other apps, or drop to a 2k context to free about a gigabyte.
That figure is at a 4k context and moves about ±15% as context length changes. Apple M5 (32GB) leaves ~0.7 GB of headroom.
- Q4_K_M needed
- ~20.3 GB
- Usable on device
- ~21 GB
- Device memory
- 32 GB
- Best quant
- Q4_K_M
Which quant fits
Run it
Pick your tool. All 3 load the same Q4_K_M weights.
ollama run olmo-3.1:32b-instruct llama-cli -hf bartowski/allenai_Olmo-3.1-32B-Instruct-GGUF:Q4_K_M lms get bartowski/allenai_Olmo-3.1-32B-Instruct-GGUF - Parameters
- 32B
- Q4_K_M size
- 18.14 GB
- Q8_0 size
- 31.9 GB
- Context
- 64k
- Ollama tag
- olmo-3.1:32b-instruct
- Memory
- 32 GB unified
- Usable for weights
- ~21 GB
- Best runtime
- MLX direct / Ollama (MLX backend)
You could also run
Run Olmo 3.1 32B Instruct on other hardware
FAQ
Can Apple M5 (32GB) run Olmo 3.1 32B Instruct?
Yes. Olmo 3.1 32B Instruct runs on Apple M5 (32GB) at Q4_K_M (~20.3 GB of ~21 GB usable).
How much memory does Olmo 3.1 32B Instruct need?
It is a tight fit on Apple M5 (32GB). At Q4_K_M the weights are ~18.14 GB; with KV cache and runtime overhead, budget ~20.3 GB at a 4k context.
What is the best tool to run Olmo 3.1 32B Instruct on macOS?
LM Studio for a simple setup; mlx-lm for the most speed. vLLM is NOT a Mac tool, it is a CUDA/Linux serving engine. Unified memory is not a fixed VRAM slice; ~70% is usable for weights.
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A live badge for your model card or README, updated as the data is. [](https://localmodel.run/can-i-run/olmo-3.1-32b-instruct/apple-m5-32gb) Sources
Weights are measured from GGUF files; KV cache and overhead are computed, so totals can vary ~15% with context and runtime. Any tok/s is a bandwidth estimate. See methodology.