Comfy UI
Generate AI images using customizable, node-based workflows.
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Comfy UI
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Spotlighted by
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creators

ComfyUI is an open-source, node-based application that helps creators generate images, videos, and audio using AI models. Popular among artists and designers, it provides a modular platform where users can customize their creative workflows through community-developed nodes like Animatediff and IPAdapter. The tool excels at visual content generation, letting creators produce stunning visuals using stable diffusion and other AI models, while its active community continuously contributes to expanding its capabilities through custom nodes and collaborative development.

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Shakker AI
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Stable Diffusion
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Key features
Blend faces and styles with Laura models
Generate diverse image styles rapidly
Control image details using ControlNet
Toksta's take

ComfyUI makes its mark with its open-source, node-based approach to AI image generation. The pre-built workflows, especially for style transfer and ControlNet integration, are genuinely useful for rapid prototyping. That being said, manual Laura model management and image size limitations feel clunky. Founders exploring AI-driven visuals should consider ComfyUI for its flexibility, but be prepared for a learning curve and hardware dependency.

While the variety of workflows is impressive, the limited prompt customization in some workflows restricts creative control. The reliance on your GPU's horsepower also means slower generation times for those without top-tier hardware. In conclusion, ComfyUI is a promising tool with some rough edges.

Its open-source nature and active community suggest a bright future, but current limitations may frustrate some users.

Comfy UI
 Reddit Review
  8  threads analyzed    88  comments    Updated  Aug 07, 2025
Positive Sentiment

What Users Love

Common Concerns

  • Customization and Control: Users highly value its ability to create highly custom workflows and pipelines, offering unparalleled control over the image generation process.
  • Cutting-Edge Support: New models and advanced features are often supported on Comfy UI first, making it the go-to for experimental and cutting-edge work.
  • Powerful and Extensible: It's seen as a powerful UI, not necessarily easy, but robust. Its extensibility via custom nodes is a significant advantage.
  • Learning Value: Learning Comfy UI, especially its node-based system, is considered valuable as it translates to understanding other node-based software (like Blender) and is akin to "programming" for AI workflows.
  • Community Support/Workflows: While complex, there are many shared workflows and tutorials available to help users learn.
  • Complexity/Learning Curve: This is the most frequently mentioned negative aspect. Many users find it "overly complex," "not comfy," and describe it as having a steep learning curve, especially for beginners or those without programming knowledge.
  • Resource Demands: Certain models (like FP8 and text encoders) are noted to be quite large, potentially requiring significant VRAM.
  • Performance Issues: Some users experience slow loading times, particularly when fetching data from the API for custom nodes, with the manager "hanging" or taking "forever" for the first run.
  • Buggy Desktop Version: The new ComfyUI Desktop application, while welcomed, is noted to be "buggy" by some users.
  • Workflow Sharing Issues: Some shared workflows are described as "done wrong" or have issues like expired URLs.

Comfy UI

Pricing Analysis

The core software is free and open-source, but various third-party cloud services offer paid plans and credit-based usage.

From Free to $240/month

Low
  • The official Comfy UI software is free and open-source.
  • Pricing is fragmented across multiple third-party cloud hosting services.
  • Paid plans range from ~$10/month to $240/month, often using a credit-based system.
  • Some platforms offer a 'pay-as-you-go' model without a monthly subscription.
  • Positioned as a powerful, free, and highly customizable tool for technical users. Its commercial pricing is decentralized, offering flexibility but potentially causing confusion.
Free trials or free starting credits are available on some third-party platforms
Updated Aug 03, 2025
Spotlighted by
8
creators
Growth tip

Use ComfyUI's node-based workflow to A/B test different visual styles for your product's social media content by creating parallel workflows: one branch using a photorealistic style and another using an illustrated style. Then, connect both branches to a "Preview" node and a "Save Image" node, allowing you to quickly generate and compare variations, ultimately identifying the style that resonates best with your target audience and drives higher engagement.

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