It is now available for everyone to use. It was previously in closed beta with invites only. I did not get an early access to it, but now it’s available.

You can enable it with –niji at the end of your prompt:

Or by typing /settings and highlighting the Niji Mode:

And here are the example pages of the prompts I created:

  1. Abstract, angel, animal, architect
  2. Blueprint, cartoon, darkness, emblem
  3. Fire, flower, heart, infographic
  4. Landscape, logo, map, planet
  5. Robot, schematic, skull, sphere
  6. Statue, tree, waterfall, woman