Like if I type “I have two appl…” for example, often it will suggest “apple” singular instead of plural. Just a small example, but it is really bad at predicting which variant of a word should come after the previous
Now guess how it feels to type German with predictive text. Most of our words can have more than a dozen different word endings depending on time and how the word is used. And that’s not taking into account that we use compound words, which word prediction pretty much cannot predict and often doesn’t even know. So spell check will mark a legal compound word as misspelled, because it doesn’t understand the concept of compound words and doesn’t know this specific word combination.
To show what I mean, the term “Danube steam boat captain’s hat” becomes “DonauDampfSchiffKapitänsMütze” (I added capital letters which shouldn’t be there to show where the next word in the compound word begins).
While this is an extreme example, it’s pretty common for compound words to consist of 4-5 words.
And for some reason, some cases seem to be missing completely on my Android default keyboard. “untersuchst”, just like a bunch of second person cases for slightly unusual words is non existent.
Because they’re using different tech. That’s like asking why do phone calls sound bad compared to voip calls. They’re just using different tech.
Lawnmowers can’t keep up with Ferraris either, despite both being vehicles.
edit for wording
Phones don’t use LLM for predictive text. The algos are a lot less complex on phones.