I am tight with software budgets until a tool earns its keep, so this is the list I would want myself: every AI tool we track, lined up by the cheapest way to start using it. Price matters most while you are still evaluating. Once a workflow actually proves out, the paid upgrade is almost always cheaper than the hours it saves.
Free options sit at the top, then paid plans climb by entry price. Every name links to the full review, where the catch with the cheap tier (message caps, an older model, slower responses) is laid out, because the sticker price is only half the story.