How do I send midi from ableton

ive looked it up but everything in the 1 video i could find didnt help i want to be able to send midi notes to op1 synths

You literally just need to type the title of this post into the YouTube search (or a regular web search for that matter). The manuals of both the OP-1 and Ableton contain additional information as well.

connect Op-1 to computer, set to control mode, enable it as a Midi device in Ableton (or indeed any other DAW), set your track to send MIDI to it, go back to controlling the OP-1 and select your sound, play your MIDI track, and that’s basically it. I’ve not specifically done this in Ableton, but the drill should pretty much be the same.