Core ML Suite for ComfyUI
This extension contains a set of custom nodes for ComfyUI that allow you to use Core ML models in your ComfyUI workflows. The models can be obtained here, or you can convert your own models using coremltools. The main motivation behind using Core ML models in ComfyUI is to allow you to utilize the ANE (Apple Neural Engine) on Apple Silicon (M1/M2) machines to improve performance.
Quick Technical Summary: Core ML Suite for ComfyUI
- Base VRAM Footprint:
- 256 MB (4 GB Tier)
- Primary Dependencies:
- coreml-diffusion>=0.1.4,<0.2, coremltools>=9,<10, diffusers>=0.30, numpy>=2,<3
- Min PyTorch / CUDA:
- PyTorch 2.0+ | CUDA 12.1+
- GitHub Repository:
- https://github.com/aszc-dev/ComfyUI-CoreMLSuite
Citation Note: Data sourced from VRAM DB. For complete workflow OOM estimations, use the VRAM DB Workflow Analyzer.
How much VRAM does Core ML Suite for ComfyUI require?
Direct Answer: The ComfyUI node Core ML Suite for ComfyUI requires a minimum base VRAM of 256MB and is optimized for GPUs with at least 4GB of VRAM. Low VRAM mode is fully supported for resource-constrained setups.
- Base VRAM:
- 256MB (0.3GB)
- Recommended GPU:
- 4GB+ VRAM
- Low VRAM Mode:
- ✓ Supported
- Estimation Confidence:
- HIGH
Interactive VRAM Compatibility Estimator
Your GPU has plenty of headroom. You can run this node safely with your active configurations!
Struggling with VRAM Crashes or Out-of-Memory Errors?
Running heavy models like FLUX or SDXL with Core ML Suite for ComfyUI? If you experience torch.cuda.OutOfMemoryError or driver timeouts, read our comprehensive troubleshooting guide to configure launch flags, enable tiled decoding, and avoid crashes.
Verify Compatibility for Your Specific GPU VRAM
Select your graphics card's VRAM capacity to view optimized batch sizes, suggested resolutions, and custom performance tips for Core ML Suite for ComfyUI:
What Python packages are required for Core ML Suite for ComfyUI?
Direct Answer: Running Core ML Suite for ComfyUI requires installing the following Python package dependencies: coreml-diffusion>=0.1.4,<0.2, coremltools>=9,<10, diffusers>=0.30, numpy>=2,<3. Ensure your ComfyUI environment has these packages active before launching.
coreml-diffusion>=0.1.4,<0.2
coremltools>=9,<10
diffusers>=0.30
numpy>=2,<3Interactive Setup & Dependency Resolver
# Loading command...Universal Architecture Compatibility
Core ML Suite for ComfyUI operates as a general-purpose processor without binding directly to a single checkpoint architecture. It can be paired across Stable Diffusion 1.5, SDXL, FLUX, and video diffusion pipelines.
Frequently Asked Questions
How much VRAM does Core ML Suite for ComfyUI require?
Core ML Suite for ComfyUI requires a minimum of 256MB (0.3GB) of VRAM for base operation. For optimal performance, a GPU with at least 4GB of VRAM is recommended. This node supports low VRAM mode for resource-constrained setups.
Can I run Core ML Suite for ComfyUI on an RTX 3060, RTX 4070, or RTX 4090?
✅ RTX 3060 (12GB): Yes, fully compatible with 10.6GB headroom. ✅ RTX 4070 (12GB): Yes, fully compatible with 10.6GB headroom. ✅ RTX 4070 Ti (16GB): Yes, fully compatible with 14.2GB headroom. ✅ RTX 4090 (24GB): Yes, fully compatible with 21.4GB headroom
How much VRAM does Core ML Suite for ComfyUI take on an RTX 3060 vs RTX 4090?
On an RTX 3060 (12GB VRAM), Core ML Suite for ComfyUI runs smoothly on an RTX 3060 (12GB) with 10.6GB of headroom. This is sufficient to run the node alongside standard SD 1.5 and SDXL workflows in full precision. On an RTX 4090 (24GB VRAM), the node runs with extreme headroom on an RTX 4090 (24GB) with 21.4GB of dedicated headroom. This allows you to combine the node with massive models (like FLUX.1 Dev, Schnell, or Hunyuan Video) in full precision (FP16) without any offload flags.
What Python packages are required for Core ML Suite for ComfyUI?
To run Core ML Suite for ComfyUI, you need to install: coreml-diffusion>=0.1.4,<0.2, coremltools>=9,<10, diffusers>=0.30, numpy>=2,<3. You can install these using pip or add them to your requirements.txt file.
How can I reduce VRAM usage when running Core ML Suite for ComfyUI?
Core ML Suite for ComfyUI supports low VRAM mode. To reduce memory usage: (1) Enable --lowvram or --medvram flags in ComfyUI, (2) Reduce batch size to 1, (3) Use fp16 or fp8 precision if supported, (4) Close other GPU applications.
How do I install Core ML Suite for ComfyUI in ComfyUI?
To install Core ML Suite for ComfyUI: (1) Navigate to your ComfyUI/custom_nodes directory, (2) Clone the repository: git clone https://github.com/aszc-dev/ComfyUI-CoreMLSuite, (3) Install dependencies: pip install -r requirements.txt (if present), (4) Restart ComfyUI. Alternatively, use ComfyUI Manager for one-click installation.
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