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The Writing Lab · for writers

A quality gate for every argument you publish.

Op-eds, proposals, briefs, essays. The Writing Lab reads your draft, scores its reasoning, and flags the fallacies and hidden bias that get arguments picked apart — so you catch them before an editor, a client, or a reviewer does.

Open the Writing Lab See how it works

Free to start · Full documents on Pro ($8/mo) · Cancel anytime

The stakes

A weak argument is expensive.

Not $8-a-month expensive. The kind that costs you the placement, the pitch, or the room.

The rejected op-ed

An editor spots the hole in your reasoning before your idea lands. You don't get told which one.

The memo torn apart

Your recommendation gets dismantled in review over a bias you didn't notice you'd baked in.

The proposal that loses

A competitor's case simply held together better. Yours had a crack you couldn't see from inside.

How it works

Draft, score, fix — before you ship.

Step 1

Paste your draft

An op-ed, a proposal, a board memo. Up to 10,000 characters on Pro.

Step 2

See the weak points

A live reasoning score, with every fallacy and cognitive bias flagged in the text and explained plainly.

Step 3

Fix and re-check

Tighten the argument, run it again, watch the score climb. Ship something that holds up.

Why writers upgrade

Built to run on real documents, every day.

✓
Full-document analysisCheck a whole piece, not a paragraph. Free caps at 750 characters; Pro at 10,000.
✓
The most capable modelSharper, more reliable reading than the free tier's lighter model.
✓
Live reasoning scoreOne number that tells you — and your editor — it holds up.
✓
Fallacies + bias togetherCatches the broken argument and the cognitive bias behind it.
✓
Saved historyEvery draft and score kept; watch your writing get stronger.
✓
Export to PDF & WordDrop the checked draft straight into your workflow.
Who it's for

If you argue for a living, this is your last read before "send."

Ghostwriters & op-ed writers Content & thought-leadership leads Consultants & strategists Analysts & policy writers Comms & PR Legal & proposal writers
Pricing

Less than one weak argument.

Try it free. Upgrade when it earns its place in your process.

$8/month
Writing Lab Pro · cancel anytime · expense it
  • Full 10,000-character analysis
  • Most capable model
  • Live reasoning score
  • Fallacies + bias detection
  • Saved history & export
Start free in the Writing Lab

No card to start. Free tier includes 750-character checks.

Questions

Before you commit.

Is this just a grammar checker?

No. Grammar tools fix how you write. The Writing Lab checks whether your argument holds — the fallacies, leaps, and biases that make a case fall apart, which spellcheck never touches.

Does it check for bias too, or only fallacies?

Both. It flags logical fallacies and cognitive biases as separate findings, each linked to a full explanation. You can run either check on its own or both together.

Can I expense it?

Yes — $8/mo, cancel anytime, and it's a writing tool for work. Most people bill it without a second thought.

Do I have to pay to try it?

No. Start free (750-character checks) and upgrade to Pro when you want full documents and the stronger model.

Will it rewrite my voice?

It doesn't rewrite anything. It shows you the weak points and explains them; the words — and the fixes — stay yours.