What are the best online tools for AI-enabled image creation or editing that have more interactivity?

So, not just "you write text, wait 30 seconds, image comes out", but more two-way feedback between user and diffusion algo, ideally without 30 second latency at each step.

Weak answer as this doesn't solve the interactive part, but some form of LCM Stable Diffusion setup on Google Colab or HuggingFace is the best online setup you can get right now.

When imagegen takes only a few hundred milliseconds, iterating is fast.

Here's an example space: https://huggingface.co/spaces/aifartist/sdzoom-Latent-Consistency-Model