Autocomplete vs Autowrite: Two Tools, Two Jobs
Here's a sentence I've typed to a lot of people over email: "I think you want a different tool than the one I built."
It happens when someone tries WriteAmp and is disappointed, and the reason is almost always the same. They wanted a tool that would write their emails for them, and WriteAmp isn't that. It's an autocomplete. It finishes the sentence you're already typing. Those are two different jobs, and the software industry has done a spectacular job of blurring them into one confusing category called "AI writing."
Let me un-blur them, because I think most of the disappointment in this whole space comes from people buying the wrong one.
The two jobs, plainly
- You write the thought; it offers the next few words
- You stay in your voice, your draft, your app
- Short, ignorable, one key to accept
- Saves the typing, not the thinking
- You give a prompt; it produces a draft
- Can write whole paragraphs from scratch
- You leave your draft to go ask elsewhere
- Saves the thinking, but you edit heavily
The difference is who's in the driver's seat. Autocomplete assumes you know what you want to say and just wants to make saying it cheaper. Autowrite assumes you want a first draft you didn't have to produce. Both are legitimate. They're just not the same tool, and they're not interchangeable.
Why they feel like one category
The blur happened because both tools are powered by the same underlying thing, a language model, and because the marketing departments of the world love the word "AI." If a chatbot can write your email and a gray suggestion can finish your sentence, the thinking goes, they're both AI writing, so they must be the same product. They're not. A drill and a screwdriver are both rotary tools. You still wouldn't use one where the other belongs.
The real difference is the interface, and the interface is the whole product. I've written about the Tab key as the interface and about ghost text before, and they're both really about this: autocomplete puts the suggestion where you're already working, one key away, no context switch. Autowrite, no matter how it's dressed up, asks you to leave what you're writing to go get a draft somewhere else. That's not a small difference. It's the difference between a tool that lives in your flow and a tool that interrupts it.
The honest limits of each
Here's where I'm going to be straight with you, because both tools have real limits and the honest version of this post names them.
- Can't suggest the next words of a sentence that doesn't exist
- For blank pages, an autowrite tool is the better fit
- A prompt-draft sounds like anyone, not you
- You'll rewrite half of it before it's yours
Autocomplete won't get you out of a blank page. If you have no idea what to write, the last thing you need is a suggestion for the next three words of a sentence that doesn't exist yet. For a blank page, an autowrite tool that drafts from a prompt is genuinely the better fit, and I've said that to people who emailed me exactly that.
Autowrite, for its part, won't make your writing sound like you without heavy editing. A draft from a prompt is a stranger's voice with your topic. You'll rewrite half of it, and that's not a bug, it's the nature of the job. The people who're happiest with autowrite are the ones who treat it as a first draft generator, not a ghostwriter.
The tools are complements, not rivals. The ideal setup for a heavy writer is probably both: an autowrite tool for the blank page, and an autocomplete for the sentences you're already typing. I'm not going to pretend WriteAmp is the only writing tool you'll ever need, because that would be a lie, and the lie would disappoint you.
Which one do you actually want?
Here's the honest self-diagnostic, and I use it whenever someone writes to me unsure.
If you landed on this post because you're trying WriteAmp and wondering why it doesn't write whole emails, now you know: it's the wrong tool for that job, and I'd rather tell you than have you find out after $29. If what you actually wanted was autocomplete, welcome, this is it, and it's genuinely good at the one job it does.
The honest close
The reason I built WriteAmp and not an autowrite tool is that I think the sentence-finishing job is the more neglected one, and the one where local software has a structural advantage. A server in the loop makes sense when a model is doing heavy lifting for you. For finishing the next few words, a server is just a privacy leak and a subscription fee, and I covered why that math is so bad elsewhere. Autocomplete is the job that belongs on your Mac.
But I'll say it again, because it matters: if your problem is a blank page, go get an autowrite tool. They're good at what they do. And if you come back here when the blank page is done and you're tired of retyping, WriteAmp will be here, free for 30 days and finishing your sentences.
On macOS 26+ Macs, Apple Intelligence mode stays free even after the trial ends — you always keep a working path to suggestions.
Written by Amit Ashwini, who builds WriteAmp and runs its marketing. More: why the Tab key beats the chat box · mini, midi, and max compared · benchmark methodology.