One AI is one editor with one taste. Get the whole panel.
Deepest sends your draft to several top AI models at once and shows you exactly where their notes disagree. The feedback gets sharper, the fact-checking gets faster, and the writing stays yours, because the job here is the edit and the verification, never the voice.
200 free credits. No credit card required.
Watch three editors disagree about the same paragraph
The same essay opening, three top models, three different weakest sentences. That split is the note you actually needed.
Simulated demo for illustration. Actual responses are more detailed and personalized.
Why one AI is not enough for serious writing
A single chatbot gives you one set of notes in one taste, and no way to tell a real fact from a fluent guess. Writers already have names for both problems.
One editor, one taste
Every model has a house style, and its edits pull your prose toward it. Accept a single model's suggestions long enough and your sentences drift toward the same smoothed-over median as everyone else's. Three models with genuinely different sensibilities cannot sand you in one direction, because they disagree about which direction that is. The disagreement is what keeps the voice yours.
Fluent is not the same as true
A model states a wrong date with the same confident cadence as a right one, which makes single-model fact-checking a contradiction in terms. When three models answer independently, a fabricated statistic or a misattributed quote usually surfaces as disagreement. Claims that survive all three are not verified, but they are a much shorter list of things to run down before you publish.
You cannot see the note you did not get
One model's feedback looks complete because there is nothing next to it. Run the same draft past three and each flags weaknesses the others read straight past: one catches pacing, another logic, another the sentence-level tics. The union of their notes is the edit; the overlap tells you what to fix first.
How writers use Deepest
Three ways to combine the models, mapped to how writing actually gets better: honest notes, checked facts, and arguments that survive pushback.
Compare · where the models agree and disagree
Compare: the writing group in one prompt
Ask once and every model answers side by side, with an automatic breakdown of where they agree and where they split. On a draft, the split is the writing-group argument worth having: different weakest sentences for different craft reasons. On a factual claim, it is a triage list: a date or figure that only one model asserts goes to the top of your verification queue before the piece goes anywhere near publication.
GPT-5.6
Claude
Dates the acquisition to 2019; the others say 2021
Gemini
Compare
Two of three agree on every claim but one. That one gets a primary source.
Synthesis · one combined best answer
Synthesis: one briefing, already cross-checked
For research on an unfamiliar beat, you do not want three overlapping documents; you want one you can trust more than any single model's. Synthesis has the models answer independently, then merges the strongest material into a single briefing, with the thin spots already argued over before you read a word. It works the same way on edit memos: one consolidated set of notes instead of three to reconcile yourself.
GPT-5.6
Claude
Gemini
Synthesis
One briefing, built from three independent answers.
Debate · models argue and converge
Debate: the comments section, in advance
For op-eds, essays with a thesis, and any piece built on an argument, Debate makes the models argue against each other and converge over rounds. The objections that emerge are a preview of your sharpest reader, and the version of your argument left standing is the one worth writing. Cheaper than finding out in public.
GPT-5.6 · opening
Claude · rebuttal
GPT-5.6 · concedes
Claude · holds
Debate
The objections that survive two rounds go in your fourth paragraph.
What writing work looks like with a model panel
Four places writers put Deepest to work on day one. Each prompt is copyable as written.
Manuscript and draft feedback
Run a chapter, an essay, or a feature past several models and get independent edits. Each catches different weaknesses; the disagreement report tells you which notes are one editor's taste and which are consensus problems.
Try this prompt
Act as an independent editor on this chapter opening. Name the weakest paragraph, where the pacing sags, and what you would cut first. Quote the lines you are reacting to and be specific about why: [paste pages]
Fact-checking before publication
Extract every checkable claim from a draft and see where the models disagree. Agreement narrows the list; disagreement is your assignment. Anything load-bearing still gets a primary source, just faster.
Try this prompt
List every factual claim in this draft (dates, numbers, names, quotes, attributions) as a table, with your confidence in each and a note on anything you cannot confirm: [paste draft]
Headlines and structure
One model's eight headline options are one sensibility eight times. Three models give you alternatives that are actually different, plus honest disagreement about which structure serves the piece.
Try this prompt
Give me eight headline options for this piece: two straight news, two curiosity-driven, two voice-forward, two search-focused. Then say which one you would run and why: [paste the piece or nut graf]
Research briefings on unfamiliar beats
Assigned to a beat you have never covered? Get a briefing that three models built independently, with the contested points marked before you walk into your first interview.
Try this prompt
I am writing about [topic] for the first time. Brief me: the key players, a timeline of major developments, the live controversies, and the five best primary sources to read before I interview anyone.
Start with 200 free credits and up to 2 models per prompt.
Confidentiality
Built for work that is not published yet
Conversations are encrypted in transit and at rest, are never used to train models, and you can export or permanently delete everything at any time. Your unsold manuscript will not seed the next model release, and prompts go to model providers through enterprise APIs, not consumer chatbots. For reporting with confidential sources, the rule you already follow applies here too: keep identifying details out of any tool, this one included.
Questions writers ask
Work in a different field? Deepest works the same way for marketers, researchers, teachers, and every other profession.
Give every draft three readers
Start free with 200 credits. No credit card required.