[mc32]

Unusual in that they all have the same spelling ability.

[m00x]

Unless I'm mistaken, chatGPT is trained on word embeddings, so it can't really make spelling mistakes, unless those misspelled words are included in the vocabulary.

[Kaibeezy]

It can also be directed to include any degree of spelling and grammar errors, as camouflage.

See: https://news.ycombinator.com/item?id=34136940

[CodeyWhizzBang]

Although the grammar is quite poor in the 50 IQ one