Mage-Flow (Microsoft) on 8 GB of VRAM
Yes, but only just: INT8 leaves 2.0 GB free on 8 GB. Microsoft's 4B native-resolution model from July 2026, with separate Turbo (4-step) and Edit checkpoints of the same size. Light enough for most GPUs.
Runs well
Yes.
Take INT8 (4.2 GB). In use it comes to about 6.0 GB, with 2.0 GB left over on 8 GB.
Best fileINT8
File size4.2 GB
VRAM needed~6.0 GB
System RAM32 GB+
Memory map · 8 GB GPU6.0 GB / 8 GB
04 GB8 GB
Weights INT8 · 4.2 GBWorking memory · 1.0 GBReserve · 0.8 GBFree · 2.0 GB
calculated How this is counted.
01What to download
| Part | File | Folder | Size | |
|---|---|---|---|---|
| Model | mage_flow_int8_convrot.safetensors INT8 · Comfy-Org/Mage-Flow | models/diffusion_models | 4.2 GB | Download → |
| Text encoder | qwen3vl_4b_bf16.safetensors Qwen3-VL 4B BF16 · Comfy-Org/Mage-Flow | models/text_encoders | 8.9 GB | Download → |
| VAE | mage_flow_vae_bf16.safetensors Mage-Flow VAE · Comfy-Org/Mage-Flow | models/vae | 0.3 GB | Download → |
| Total download · keep about the same free on disk | 13.4 GB | |||
Sizes from Hugging Face, 2026-10-01.
02Every file, on 8 GB
| File | Size | Needed | On this card | Quality | Download |
|---|---|---|---|---|---|
| 16-bit SAFETENSORS · Comfy-Org | 8.2 GB | 10.0 GB | 2.0 GB too big | the original weights | Hugging Face → |
| INT8 ← SAFETENSORS · Comfy-Org | 4.2 GB | 6.0 GB | fits · 2.0 GB spare | practically identical to the original | Hugging Face → |
“Needed” adds 1 GB of working memory for Mage-Flow and a 0.8 GB reserve. Sizes 2026-10-01.