Adobe Firefly is indeed very good. It's well-built, fast, and fits right into the Creative Cloud ecosystem that most of us are already familiar with. But in the time between monthly subscription renewals, many people start asking themselves: Am I paying for capability or convenience?
It was largely due to convenience. When I found the open-source Firefly alternative, Krita 's free AI Diffusion plugin , which offered similar features, I decided how much convenience I really needed.
What is the Krita AI Diffusion plugin?
Understand how the interface works.
The AI capabilities are not built into Krita. They come from a third-party plugin called Krita AI Diffusion, developed by an independent creator and available for free on GitHub. Krita is the interface; the plugin is the AI tool.
Plugins that use Stable Diffusion models are sometimes quite complex, including newer options like Flux, and connect to a local server running on your computer or to a cloud service called Interstice Cloud. This cloud option is what makes it feasible for many people, because running AI models locally requires significant GPU power that most people don't have readily available on their desktops.
Setting it up isn't simply a matter of downloading an app. It's quite complicated. If you're used to "one-click" installations, this feels like a step backward. On a MacBook Pro, you place the plugin files in the system library, activate them in Krita, create an Interstice Cloud account, and connect to it within the app. The setup process takes about 20 minutes and requires careful attention to the instructions. If that sounds overly complicated, then prepare yourself mentally before you begin.
But once it's running, it works very well.
Comparing Adobe Firefly and Krita AI Diffusion
Comparing the quality of polished images with the control capabilities of open-source software.
The test is very simple: Give both tools the same prompt and compare the results. Nothing special, just requests to describe the scene, the type of image that would actually be used to illustrate the article.
Firefly produces clean, commercially censored images that often look polished but lack emotion. Krita's plugin surprised everyone. Adobe deliberately trained Firefly on licensed content, which is crucial for commercial use. The results look good, but can be over-cleaned and lack personality.
Using the General Editing preset with Interstice Cloud, Krita creates images that are more personality-driven, sometimes rougher, but often more interesting. With specific prompts, you'll get results that look truly usable, not just acceptable.
The most noticeable difference lies in interface integration. Firefly's Generative Fill function, where you select a portion of an image and let the AI complete it, works seamlessly within Photoshop . Krita offers similar image retouching capabilities, but requires more active participation. You have to work with the selection tool, then set adjustment points, and then review. It's a whole workflow, not a one-click operation.
For infrequent users, that extra step isn't a big deal. But for daily Creative Cloud users, it could be a hindrance.
While Adobe Firefly is a "black box" that gives you what it thinks you want, the Krita AI Diffusion plugin is the gateway to the broader Stable Diffusion ecosystem. The key factor isn't just price; it's ControlNet.
In Firefly, you rely primarily on adjustment points. Krita allows the use of "Canny" or "Depth" control layers to transform stick figure sketches into concrete layouts. With newer versions of Flux, the ability to adhere to adjustment points is often superior to Firefly, especially when displaying text or complex dissections. For a writer, image adjustment is a significant upgrade in the workflow.
Is Krita a viable alternative to Firefly?
Many people still keep their Adobe subscription. But honestly, that's partly due to inertia; they still use other Creative Cloud tools, so it's hard to separate them. If Firefly were a separate subscription that they had to pay for separately, they would have canceled it already.
For article images and personal projects, some people have switched almost entirely to Krita AI Diffusion. The results are good enough; the workflow is easy to learn, and the cost of use is virtually zero.
The initial setup is quite complicated, and this article wouldn't recommend this software for those who simply want a quick, uncomplicated image creation tool. Firefly remains the best option for that. But if you're willing to spend 20 minutes on installation and are comfortable working in an environment that requires a bit more manipulation, the Krita plugin offers true AI-powered image creation capabilities that would have cost you a monthly subscription fee a few years ago.
Adobe leads in convenience, but for some, Krita has become a highly effective, much lower-cost alternative that delivers comparable results. In short, you don't necessarily need a subscription to use effective AI-powered imaging technology if you're willing to accept a slightly more complex workflow.