Open a chat window and the first problem isn't the AI model, it's you. What do you type first? How much context does it need? Do you paste everything at once or build it up over a few messages? People who are good at this have usually just done it a lot, and even they end up with a different result depending on how a particular conversation happened to go.
A form skips all of that. It tells you exactly what it needs, you fill it in, and you get a finished result. Here's what that actually looks like next to each other.
The chat version of a real task
Say you want to check whether your homepage headline is actually pitched at the right level for your buyer. In a chat window, that's a conversation: you'd explain what your company does, describe who buys it, paste in your current headline, mention your competitors, probably get asked a clarifying question or two, and eventually land on an answer. Do it again next month and you'll phrase things slightly differently, skip a detail you included last time, and get a differently structured answer back.
The form version of the same task
A form-based version of that same task asks for five things up front: what your company does, who your target buyer is, your current headline, who you're compared against, and the most common objection you hear from people who don't buy. Fill those in once, run it, and the result comes back as a structured scorecard: an awareness-level score, specific gaps between where your headline is pitched and where your buyer actually is, and a short list of priority fixes ranked by what matters most.
Run it again in three months with updated answers and you get the same shape of result, just with new numbers. Nothing about the format is up to how the conversation happened to unfold, because there wasn't a conversation. There was an input and a result.
What a form actually removes
It's not that a form is smarter than a chat conversation. It's that it removes three things a chat window quietly requires of you: knowing what information is relevant, knowing what order to present it in, and knowing how to ask for the output in a useful format. A form has already made those decisions. You're left with the one thing that's actually yours to provide: the specifics of your situation.
This isn't an argument against chat
Open-ended exploration is exactly what a chat window is good at: thinking through a problem you don't have a clear shape for yet, going back and forth, changing direction mid-conversation. A form is the wrong tool for that. But for a task you already know the shape of, one you've done before and will do again, a form removes the part that was never really adding value: reinventing how to ask for it, every single time.