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> I’ve always had difficulty generating a normal Sonic the Hedgehog image with AI image generation. DALL-E 2, for example, just flat-out can’t do it. IIUC, Ope

> I’ve always had difficulty generating a normal Sonic the Hedgehog image with AI image generation. DALL-E 2, for example, just flat-out can’t do it. IIUC, OpenAI specifically deny-listed trademarked characters from the training dataset to try and side-step getting sued by companies with enough resources to move the needle on what was allowed and disallowed in terms of digital art creation (since a ruling could disrupt their entire business model). I assume Emad Mostaque did the risk calculus differently when they open-sourced Stable Diffusion (I don't know for sure, but it smells like his attitude on the question was "I don't care because now that it's open-source nobody can delete it from the Internet anyway").

minimaxir 4y ago
That's true, although I'd still expect something a little blue. I had similar issues with VQGAN + CLIP, where CLIP is also trained by OpenAI but otherwise handles copyrighted characters a bit better.
- shadowgovt 4y ago
  If Sonic the Hedgehog was specifically excluded from the dataset, DALL-E 2 has no way to know the hedgehog should be blue. Instead, I think it's interpreting "a portrait of Sonic the Hedgehog" as a hedgehog that happens to have a name, and almost all hedgehogs, regardless of their name, are the same color. Even if someone had added a blue realistic-looking hedgehog to the dataset, if they referenced Sonic their image would have been deny-listed. So the only way to get there is to add the adjectives one is looking for, such as `a portrait of a blue hedgehog wearing red sneakers and eating a chili dog`... And, indeed, when I try that prompt, I definitely get some Sonic-alikes.
mg 4y ago
Dall-E 2 can render Sonic the Hedgehog just fine if you give it a bit more context: https://twitter.com/illubots/status/1571921642569502720 https://twitter.com/illubots/status/1571921642569502720

minimaxir 4y ago

That's true, although I'd still expect something a little blue. I had similar issues with VQGAN + CLIP, where CLIP is also trained by OpenAI but otherwise handles copyrighted characters a bit better.

shadowgovt 4y ago
If Sonic the Hedgehog was specifically excluded from the dataset, DALL-E 2 has no way to know the hedgehog should be blue. Instead, I think it's interpreting "a portrait of Sonic the Hedgehog" as a hedgehog that happens to have a name, and almost all hedgehogs, regardless of their name, are the same color. Even if someone had added a blue realistic-looking hedgehog to the dataset, if they referenced Sonic their image would have been deny-listed. So the only way to get there is to add the adjectives one is looking for, such as `a portrait of a blue hedgehog wearing red sneakers and eating a chili dog`... And, indeed, when I try that prompt, I definitely get some Sonic-alikes.

mg 4y ago

Dall-E 2 can render Sonic the Hedgehog just fine if you give it a bit more context: https://twitter.com/illubots/status/1571921642569502720 https://twitter.com/illubots/status/1571921642569502720