RunwayML is the leader in the text-to-video world and this new Motion Brush add-on takes it to the next level.
Motion brush will allow you to take your images and specifically say where you want the motion to take place - in the past, it’s been painstaking to have to try again and again to get the right motion to play out. This will make it so much easier going forward.
PikaLabs is great as well but with this sort of tool, Runway keeps pushing the ball forward in terms of text-to-video and AI movie making.