Really? I get goofy random substitutions like sometimes from foreign languages. It also doesn't do good with my mini-tests of "can you write modern Svelte without inserting React" and "can you fix a borrow-checking issue in Rust with lifetimes, not Arc/Cell slop"

That doesn't mean it's worse than the others just not much better. I haven't found anything that worked better than o1-preview so far. How are you using it?