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What is the Difference Between Midjourney and Stable Diffusion?

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The main difference between Midjourney and Stable Diffusion is that Midjourney is a paid tool while Stable Diffusion can be used for free.

Midjourney is a text-to-art AI tool that has had several significant improvements over the past few months. The results are now more detailed, and portrait's face features are now more proportional. Midjourney is entirely proprietary, and the source code is not publically available.

On the other hand, Stable Diffusion is an AI art tool that uses diffusion models to generate high-resolution images from a given prompt. The tool is available in public forms, and the content filter can be adjusted. Stability AI has made the Stable Diffusion source code available, although it is not open source.

Midjourney is more suitable for text-to-art projects, while Stable Diffusion is ideal for generating high-resolution images from a given prompt.

What is Midjourney?

Midjourney is an AI art tool that generates images from natural language descriptions, called "prompts". It is a proprietary web service created and hosted by a San Francisco-based independent research lab Midjourney, Inc.

midjourney logo

Midjourney is similar to other AI art tools like Stable Diffusion and OpenAI's DALL-E. However, it has some unique features that set it apart from its competitors. For instance, Midjourney is known for producing stunning AI pictures with incredible artistic details.

Unlike Stable Diffusion, Midjourney is a paid service that can only be used on an internet browser. Users can choose from different pricing plans based on their needs. Midjourney also has a robust content filter that helps prevent offensive or inappropriate content from being generated.

Emad Mostaque, the founder of Stability AI, has stated that the underlying technology behind Midjourney is based on Stable Diffusion. However, Midjourney has its own proprietary algorithms and models that enable it to produce unique and visually striking images.

What is Stable Diffusion?

Stable Diffusion is an AI art tool developed by Stability AI, a company that specializes in creating AI-powered creative tools. It is an open-source software that allows users to generate high-quality images by using a simple text prompt. The tool uses a neural network to generate images by predicting the next pixel in the image based on the previous ones.

stable diffusion logo

Stable Diffusion is known for producing more natural-looking images compared to other AI art tools. This is because it uses a diffusion process to generate images, which means that the pixels are generated gradually and not all at once, resulting in smoother transitions between colors and shapes.

Stable Diffusion is highly customizable, allowing users to adjust various parameters to generate different types of images. For example, users can adjust the temperature, noise level, and resolution of the generated images. Additionally, users can fine-tune the generated images by adjusting the weights of the neural network.

Differences Between Midjourney and Stable Diffusion

Image Quality

When it comes to image quality, both Midjourney and Stable Diffusion have their own strengths. Midjourney tends to produce darker and more dramatic images, while Stable Diffusion is known for generating more realistic and crisp images.

Midjourney's images have a unique and artistic feel to them, but they may not be suitable for all use cases. Stable Diffusion's images, on the other hand, are more versatile and can be used in a wider range of applications.

stable diffusion

However, Stable Diffusion's output quality can vary a lot depending on the input and settings.


The architecture of these two AI tools is also quite different. Midjourney uses a transformer-based architecture, which is known for being highly effective in natural language processing tasks. This allows Midjourney to generate more accurate and coherent text-to-image results.

Stable Diffusion, on the other hand, uses a diffusion-based architecture, which is designed to generate high-quality images with a wide range of styles and variations. This architecture allows Stable Diffusion to create images that are more diverse and unique compared to Midjourney.


One of the biggest differences between Midjourney and Stable Diffusion is their pricing. Midjourney is a paid service, with plans starting at $10 per month. Stable Diffusion is open source and can be used for free as long as you have your own computer to run it on.


For those on a tight budget, Stable Diffusion may be the better option. However, for those who need more advanced features and support, Midjourney may be worth the investment.

Image Styles

Both Midjourney and Stable Diffusion offer a wide range of image styles and variations. Midjourney is known for producing more dramatic and artistic images, with a focus on portraits and human faces.

Stable Diffusion, on the other hand, can generate a wide range of images, including landscapes, objects, and abstract art. This makes it a more versatile tool for a wider range of use cases.

midjourney on discord

Content Filter

Midjourney has a more robust content filter, making it a better choice for those who need to filter out certain types of content. Stable Diffusion, on the other hand, has an adjustable content filter, which allows users to customize it to their specific needs.

Midjourney vs Stable Diffusion: Comparison Chart

FeatureMidjourneyStable Diffusion
Content FilterRobustAdjustable
AvailabilityPublicOpen Source
AccessibilityOnline - require an internet connectionCan be use offline
Output QualityHighly DetailedVariable
Hardware requirementNot specifiedRequires 10 gig graphics card


Which tool is better for generating images?

It depends on the user's needs and preferences. Midjourney is generally considered to be better for generating high-quality, detailed images that closely match the input prompt. Stable Diffusion, on the other hand, is more flexible and can be adjusted to produce different types of images.

Are there any limitations to these tools?

Like any AI tool, Midjourney and Stable Diffusion have their limitations. For example, they may not always produce the exact image that the user had in mind. Additionally, the quality of the output can vary depending on the input prompt and other factors. However, both tools are constantly improving and evolving, so it's likely that these limitations will become less of an issue over time.

How can users get started with these tools?

Both Midjourney and Stable Diffusion offer user-friendly interfaces that make it easy to get started. Users simply need to input a text prompt and select any relevant options, such as image size or content filter. From there, the tool will generate an image that closely matches the input prompt. Users can then adjust the output as needed, or continue experimenting with different prompts and options to generate new and unique images.


Both Midjourney and Stable Diffusion are powerful AI tools for generating images from text prompts. While Midjourney has a more user-friendly interface and produces high-quality results with minimal input, Stable Diffusion offers more options and flexibility for users who want to fine-tune their images.

Those who prioritize ease of use and quick results may prefer Midjourney, while users who want more control over the image generation process may prefer Stable Diffusion. It's worth noting that there are other AI tools available for text-to-image generation, such as DALL-E 2, which may be worth exploring as well.

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About the Author: Tom Vincent

Tom Vincent graduated with a bachelor's degree in economics and social studies. He then started his higher education at the University of François Rabelais in Tours with a DUT Information Communication. To expand his knowledge, he also followed a professional degree in e-commerce and digital marketing at the Lumière University of Lyon. On this project, he is in charge of articles covering language, industry and social.
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