Knak 3/5
Three solid facets and genuinely strong ones. Voice is a lint pass, and the per-market plumbing is out of scope by their own documentation.
TIER 1 · GOVERNED EMAIL CREATION
Caliber vs Knak
Knak is the closest thing to Caliber on the market — real brief ingestion, admin-approved brand themes, AI-native fan-out into 75 languages with no TMS. Two gaps decide it: Knak lints voice rather than scoring it, and its translation explicitly leaves the plumbing behind.
Caliber 5/5
One brief, N markets, every variant scored — and the links, UTM terms and legal footers correct per market in the same pass.
KNAK
CALIBER
01 BRIEF → EMAIL
YES
Ingests a brief, Google Doc, PDF or URL and composes from approved modules — but requires a design starting point (a Brand Theme, a prior PDF or a new layout), warns that "not every selected module will appear in the final email", and generates no imagery.
YES
Caliber helps shape the campaign, compiles a typed brief, and composes from the approved modules and market contracts configured during implementation.
02 BRAND LOCK
YES
Admin-approved Brand Themes governing colors, fonts, modules and the image library. This is real governance and it works.
YES
Approved modules, editing permissions and protected content keep composition inside the customer’s design system without exposing raw production HTML as the editing model.
03 MARKET FAN-OUT
YES
75 languages, AI-native, no TMS required — the widest language coverage in the tier. But the parent design cascades to variants while the text does not, so edits diverge as soon as a market changes.
YES
One master campaign coordinates the shared structure while market variants retain native copy and rules. Changes can be targeted without blindly replacing accepted local work.
04 TOV SCORE
PART
Four to seven personality attributes plus up to fifty Brand Voice Rules. But Brand Voice Optimize explicitly does not check "Tone and personality attributes" — so the part everyone buys it for is the part it does not verify.
YES
A number, per dimension, per market variant, with hard guardrail violations — measured against the same typed rules the generator wrote with.
05 LINKS · UTM · LEGAL
— NO
Translation explicitly excludes merge fields, tracking codes and from/reply-to addresses. UTMs are settable per link, per email or per brand — with no locale dimension at all.
YES
Per-market UTM terms generated from your own convention on every link, alongside localized links, resolved deep links and the right legal footer.
WHERE KNAK WINS
Knak has scale, heritage and a bigger language list
- 75 languages against our declared-market model. If you need Thai next quarter, that matters.
- Deep MAP heritage — Marketo and Eloqua workflows that predate the AI era and still work.
- A mature enterprise motion: approvals, user roles, image-library governance, references at scale.
- Brief ingestion from Google Docs and PDFs, which is often how briefs actually arrive.
CHOOSE KNAK IF
You need very wide language coverage now, your markets differ mainly by language, and your tracking and legal text are handled elsewhere — by an ops team, a naming convention or a spreadsheet everyone trusts.
CHOOSE CALIBER IF
Your markets differ by more than language: different link structures, different UTM conventions, different legal entities. And you want voice measured, not linted — with a number you can put in front of a brand owner.
Lint tells you it looked. A score tells you what it found.
Bring your voice guidelines and four markets. We will score every variant in front of you.