iPhone automatically finishes my words while I type.

It is the “Inline Text Prediction”.

Use predictive text on iPhone - Apple Support

There is no separate setting to turn just it off right now (iOS 17.0.3) and no idea on if that is something that will come later. It is turned off when you turn off predictive text. Otherwise, you reject the prediction if you keep typing (problematic if you wanted a shorten version of the word but clicking the space bar accepts the inline prediction UNLESS you add them in Text Replacement in settings.

Have a word or phrase you use and don’t want it corrected?

1. Go to Settings  > General > Keyboard, then tap Text Replacement.
2. Tap  at the top right, then enter your word or phrase in the Phrase field, but leave the Shortcut field blank.

That might be a helpful workaround for some

I FOUND A SOLUTION

Go to the Settings >> General >> Keyboard. Then turn ON predictive text, then scroll down and turn OFF "Show Predictions Inline". I had the same exact problem as you but this fixes everything, you still have the suggestion words but it doesn't finish words for you🥹

Settings > General > Keyboard > Show Predictions Inline OFF

I FOUND A SOLUTION

Go to the Settings >> General >> Keyboard. Then turn ON predictive text, then scroll down and turn OFF "Show Predictions Inline". I had the same exact problem as you but this fixes everything, you still have the suggestion words but it doesn't finish words for you🥹

Settings > General > Keyboard > Show Predictions Inline OFF

I found a solution to my iphone making its own messages while I’m typing. Auto correct and predictive text didn’t fix my issue. Mine just said crazy stuff every time I typed us. Go to settings-general- keyboard- text replacement. Delete what’s there. The crazy predictions stop!

I noticed this issue as soon as I did one of the most recent updates for IOS. The only way I have been able to remedy this is to turn off the predictive text. While it is lovely that it gives the suggested word list - the **** autofinish is annoying as all get out because as most have said - it causes a stutter. Unfortunately there is no fix for just the auto-finish without shutting off predictive all together. Hopefully this will be some Apple can remedy with the next software update.

To stop predictive text on an iPhone, go to Settings > General > Keyboard and turn off Predicitive.

Try turning off Predictive Text in settings under Keyboards

Yes but most of us still want predictive text above the keyboard, just dont want it auto-finishing words. Like someone else said, this is why i have auto correct OFF.

Try going in that same menu and toggling off Auto-Correction

I am struggling with this same thing. I don’t have auto-correct on. I like the text predictions, but this new thing where it finishes words for me is driving me insane. I’ll type “ok perf” and it’ll send “ok perfect.” Obviously not the worst thing that could happen, but I have auto-correct off for a reason. I don’t want to turn off text predictions because they’re really handy, but I will if it’s going to keep typing for me.

It’s not the autocorrect that’s the problem. It doesn’t wait until we are done typing a word. It FINISHES the word while we are still typing, causing the stutter in the text because we don’t know it’s about to finish the word for us so we continue to type the word. It’s like someone reaching over your shoulder to hit a letter on your keyboard while you are in the middle of a word. It’s not helpful in any way.

and its not predictive text above the keyboard that’s the problem. That just gives the option of selecting the word if you don’t want to type it out. But this problem is it finishes it for you automatically. How do we turn that off? I don’t like stuttering while I type.

It doesn't require pressing space. It completes it with whatever it likes while you're typing still. I did find that switching from the Oxford dictionary to the plain Apple one lessened it happening, but the Apple dictionary is missing an entire medical section, which it then slaughters trying to correct medical terminology. If you don't need medical terminology, the regular Apple dictionary has fewer instances, it seems.