Compare Firefly vs Microsoft Bing

One of main differences is Firefly will not generate based on proper names or public figures. The other comparable point is Firefly is only training on Adobe Stock and other copyright-free sources compared to other AI LM that are using a much larger source.

That being said, different AI engines will produce different results even with the same prompt script. Comparing results from the same script on Dall-E, Midjourney, or Genesis will produce different and sometimes better results.