4-bit Open on Hugging Face
Parameters
12B
Weights (est.)
≈ 6.8 GB
Mac memory (est.)
16 GB+
Size is estimated from the parameter count and quantisation. Memory allows a fifth extra for context plus 2 GB for the system; long contexts need more.
Run it
With mlx-lm on an Apple silicon Mac:
pip install mlx-lmmlx_lm.generate --model mlx-community/Mellum2-12B-A2.5B-Instruct-4bit --prompt "Hello"
Details
- Base model
- JetBrains/Mellum2-12B-A2.5B-Instruct (quantized)
- Vendor
- JetBrains
- Task
- Text generation
- Quantisation
- 4-bit
- Licence
- apache-2.0
- Downloads
- 143 in the last 30 days · 798 all time · 2 likes
- Published
- 2026-08-11 · updated 2026-08-11 (3mo ago)
- Languages
- en
- Tags
- mellum, instruct
Other MLX builds of JetBrains/Mellum2-12B-A2.5B-Instruct
| Build | Quantisation | Weights | Mac memory | Downloads |
|---|---|---|---|---|
| Mellum2-12B-A2.5B-Instruct-mxfp4 | MXFP4 | ≈ 6.8 GB | 16 GB+ | 185 |
| Mellum2-12B-A2.5B-Instruct-4bit (this one) | 4-bit | ≈ 6.8 GB | 16 GB+ | 143 |
| Mellum2-12B-A2.5B-Instruct-6bit | 6-bit | ≈ 9.9 GB | 16 GB+ | 63 |
| Mellum2-12B-A2.5B-Instruct-8bit | 8-bit | ≈ 12.9 GB | 24 GB+ | 74 |
| Mellum2-12B-A2.5B-Instruct-bf16 | bf16 | ≈ 24.3 GB | 32 GB+ | 51 |