Comparison 05 // Voice Verification vs. Visual Formatting.

grai vs. AuthoredUp: Voice DNA and Cadence Gate vs. LinkedIn Text Formatter

Last verified against public pricing and vendor documentation: 2026-10-29.

Direct Answer. AuthoredUp ($19.95/month, about $239 per year) is a LinkedIn formatting extension: bold and italic Unicode, fold preview, snippets and post analytics. It does not extract a quantitative Voice DNA profile and it does not compute sentence-length burstiness. grai ($69 once, Founder Edition) is a local voice workbench: it profiles 5 to 20 real texts, runs a 6-rule syntactic gate plus a CV >= 0.32 floor, and prints an A4 Voice DNA Dossier with a SHA-256 hash.
Option Best For Starting Price Key Difference
grai (Founder) Proving the text itself does not read like a flat model draft, before it is published. $69 once (AI model/API usage separate if used) Local HTML5 workbench, 622 KB. 6-rule gate + CV >= 0.32 floor + A4 SHA-256 Dossier. No LinkedIn connection.
AuthoredUp Making a finished post look right on LinkedIn: bold, italics, fold preview, snippets. $19.95/month (about $239 per year on monthly billing) Browser extension for visual formatting and analytics. No quantitative voice profile, no cadence math.

1. Different Layers of the Same Post

AuthoredUp works on presentation. It changes how the text renders on LinkedIn: bold and italic Unicode, line breaks that survive the feed, a preview of where the fold cuts the post, reusable snippets and post analytics.

grai works on the text before presentation. It measures how you actually write (sentence length distribution, banned constructions, structural habits) and refuses to let a flat rhythm through, because a model draft with perfect formatting is still a model draft.

One does not replace the other. A post can be beautifully formatted and still read like a press release written by a machine, and a post can have a human rhythm and still look like a wall of text.

2. Where AuthoredUp Wins vs. Where grai Wins

Where AuthoredUp Wins

Where grai Wins

3. The Workflow That Uses Both

A practical sequence: shape the premise in grai (THE SCALPEL for a sharp claim, THE BROADSHEET for an essay, THE LEDGER for a list), draft, run the cadence gate until the score is clean, paste the result into LinkedIn, then use AuthoredUp for bold, italics and the fold preview. The formatter never sees a flat draft, and the gate never has to care about Unicode.

4. Side-by-Side Technical and Commercial Matrix

Criterion grai (Founder $69 / Agency $149) AuthoredUp ($19.95/month)
Pricing model $69 once (Founder) or $149 once (Agency) $19.95 per month recurring (about $239.40 over 12 months)
Primary job Voice extraction and deterministic cadence verification Visual formatting and layout inside LinkedIn
Voice DNA profile Yes: quantitative profile from 5 to 20 samples, stored locally No quantitative profile; formatting presets only
Cadence verification 6 regex rules + CV >= 0.32 burstiness floor, with flagged spans None. Formatting does not measure sentence rhythm
Fold preview No Yes, inside the LinkedIn composer
LinkedIn account connection None required Extension acts inside your logged-in LinkedIn tab
What happens if you stop paying You keep grai.html and your .grai files permanently Formatting tools stop working in the composer

5. 12-Month and 24-Month Total Cost Comparison

Setup Month 1 12-Month Total 24-Month Total What Is Included
AuthoredUp (monthly billing) $19.95 $239.40 $478.80 Formatting, fold preview, snippets, analytics
grai Founder (one-time) $69 $69 $69 Local Voice DNA + Cadence Gate + A4 Dossier export, forever
Both, used together $88.95 $308.40 $547.80 Formatted posts that also pass the cadence gate
grai Agency Edition (one-time, for studios) $149 $149 $149 25 client profiles and client-ready SHA-256 Dossiers

6. Privacy and Data Flow Boundary

7. Verdict: Which Should You Choose?

Choose AuthoredUp ($19.95/month) if: your posts already sound like you and the missing piece is presentation inside LinkedIn.

Choose grai ($69 once) if: the text is the problem. Flat rhythm, generic transitions and structural cliches survive every formatter, and only a measurement gate catches them.

Choose both if: you publish often and want the argument, the rhythm and the layout controlled at the same time. The combined first-year cost is $308.40, which is less than two years of AuthoredUp alone.

Formatting is the last step. Voice is the first.

One-time payment. 30-Day Distinction Guarantee via [email protected].

Get Founder Edition $69 Get Agency Edition $149