- Sentences
- 28
- Avg length
- 10.4 words
- Short ones
- 9
Sealis · An applied voice lab
Your voice, kept yours,
wherever AI writes or speaks for you.
Our goal: what AI writes for you should still sound like you. Sealis measures the habits in your writing, rewrites drafts toward them, and checks that every number, date and name survived. For individuals, studios and agencies.
Text · liveAudio · previewVisuals · preview
Try it Live demo · runs the real Score engine
Awaiting specimen
Measured, not guessed.
01Products
One voice, wherever it shows up.
Text is live. The rest is on its way, and each page says exactly where it stands.
Humaniser
Make a draft sound like you.
Paste a stiff or AI-written draft and get it back in your voice, with every number, date and name kept.
Open the HumaniserScore
Measure a draft.
Stock phrases, rhythm, word choice and punctuation, and how close a draft is to a saved voice. Free, no signup.
Score a draftStudio
A voice for every client.
A saved voice per client or brand, and a private page where each client approves the work.
See StudioAgents
Voice checks for what agents write.
We're building a check and a voice match for what an AI agent writes, message by message.
See the planAudio
Your voice, spoken.
We're working toward speech that keeps your cadence, breath and pauses. You can measure your rhythm today.
See where it standsVisuals
Your voice, on screen.
We're exploring how a voice could carry onto images and recorded video, with consent first.
See the idea03Research
Where the lab is taking it.
Sealis Labs studies how to keep a voice intact when AI does the writing. These are the four directions, with what is live and what is not.
- 01Exploring
Steering the words as they are chosen
Instead of fixing a draft afterwards, nudge the model towards your voice while it writes.
Token probability manipulation
- 02Partly live
No fact changes without a flag
A rewrite should never quietly change a number, a date or a name.
Context verification and fact preservation
- 03Live, opt-in
Learning from every correction
Each time you fix a rewrite, the next one starts closer to how you would have written it.
Continual online feedback learning
- 04Preview
One voice in text, sound and picture
The same person, recognisably themselves, whether it is read, heard or watched.
Cross-modal identity alignment transfer
04Specimen
Formal stays formal. The template goes.
Same role, same claims, still fit to send to a hiring manager. What changes is everything that made it read as a template.
A. The draft
Template draft
20
- 1 A very common cover-letter opener. Name the role and why, plainly.
- 2 A self-description everyone uses. Show it with a fact.
- 3 A stock self-description. Show it with an example.
- 4 Template cover-letter claim. Show the match instead.
- 5 Overclaiming boilerplate. Say which skills match which needs.
- 6 Overused. Say what you've done about it.
- 7 Jargon for "use".
- 8 Empty phrase. Name a result.
- 9 A cliché that adds nothing specific.
Many flags
B. The rewrite
In the writer's voice
96
I'm writing to apply for the Marketing Assistant role. I'm motivated and detail-focused, and my skills match what you're looking for. I enjoy using them to get real results, especially in a fast-moving environment.
- Kept: the role, the claims, the register.
- No stock phrases. Contractions where the writer uses them.
Few flags
05Method
Measure. Match. Keep.
Three instruments, one voice. Each works on its own; together they compound.
Measure.
Measure any draft for stock phrases, rhythm, word choice and punctuation, and how close it is to a saved voice.
Try ScoreReadout
Example15
Many flags
Match.
Rewrite drafts into that voice. Facts, numbers and formality stay locked.
Save your first voiceVoice specimen · Studio owner
Example- Sentence length
- 8 words, varied
- Contractions
- 10.6 per 100 words
- Dashes
- None
- Questions
- Asks them
- Word length
- 4.1 letters on average
Draft match72%Keep.
Every edit you save is kept as an example for next time. The voice gets sharper the more you use it.
Your edit
ExampleHappy to assisthelp with the handover.
Kept · correction 04
You changed
assist
tohelp
. The next rewrite sees this edit as a worked example.
06From Sealis Labs
Built on published tests.
07Pricing
Start free. Pay when it earns it.
Free
A$0
5 rewrites a week, 1 voice, Score included. No card.
Studio
A$34.99/mo
Up to 5 clients, a voice each, and pages where they approve the work. Free for your first 7 days, no card.
08Questions
Asked first.
01Is Sealis a paraphraser?
No. A paraphraser swaps words so text looks different. Sealis models how one particular person or brand writes, from their own samples, and rewrites a draft toward that voice while keeping its meaning, facts and numbers.
02Will it make my writing casual?
No. If your samples are formal, rewrites stay formal. Score doesn't penalise formality either: it looks for template phrasing and flat rhythm, not register. A plain, precise formal letter scores well.
03Does Score tell me who or what wrote something?
No. Score measures stock phrases, rhythm, word choice and punctuation, and how close a draft is to a saved voice. It doesn't say who or what wrote something, and it shouldn't be used to judge anyone's work. How it works is published in full at Sealis Labs.
04What happens to my text?
Score's measured signals run on Sealis's own server; no AI model is involved in that part. Rewrites are produced by an AI model run by one of our service providers. Your text is sent to that provider and handled under its own terms; our privacy policy sets out who they are and how your data is kept. Sealis Labs only uses text for research if you opt in, and you can export or delete your data at any time.
05What's Studio?
Studio is for people who write in more than one voice: a voice per client or brand, a match score on every draft, and a private page where clients approve the work. It's A$34.99 a month for up to 5 clients, free for your first 7 days with no card, and there's a free demo you can try without signing up. The free plan includes 5 rewrites a week and 1 voice.