A model made
to measure.
Kethra builds your company its own private, fine-tuned model, without an ML team. We take your data, tailor and evaluate a private model on your voice and standards, then deploy it. Yours alone.
You own the weights.
Draft the opening line of a renewal email to a client whose contract lapses in 30 days.
Hi there, just a quick heads up that your contract is going to expire soon! We'd love to keep you on board, so please get in touch to renew.
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one prompt · two models · the fitting is the difference
Everyone sounds the same
Most companies build on the same shelf of base models. The voice, the defaults and the blind spots arrive pre-set, and real fine-tuning has meant hiring a team you do not have.
Most companies build on a handful of shared base models. The voice, the defaults and the blind spots arrive pre-set, and so does every competitor's.
Real fine-tuning has meant standing up a research team, a data pipeline and an eval suite before a single private model ships. Few teams can wait.
Rent a model and you rent its behaviour. When the shelf changes underneath you, your product changes with it, and you were never holding the thread.
Three steps, one owned model
You bring the cloth. We do the tailoring. You keep the garment.
- 01
Bring your data and your standard
Hand us examples of the work done well, the documents that hold your knowledge and a written note of the standard you hold. No pipeline to build, no labels to prepare.
kethra fit --data ./corpus --standard ./voice.md - 02
We tailor and evaluate a private model
Kethra fine-tunes a private model on your material, aligns it to your standard and scores every version against a held-out eval built from your own bar. Nothing ships until it clears.
eval pass 47/50 · voice +31 · refusals held - 03
You deploy it, and you own it
One command puts the model behind a private endpoint. The weights are yours, exportable, on our infrastructure or inside your own. Refinement continues as your standard moves.
kethra deploy --private → wss://api.basisresearch.tech/v1
Drag the thread, watch it fit
The same prompt, answered by a base model and a Kethra-tailored one. Pull the slider to fit the private model, and watch the eval score cross the bar.
A customer writes: my order is three days late and no one has told me anything.
I'm so sorry for the inconvenience! Your satisfaction is our top priority. Please allow 3 to 5 business days for delivery. Let me know if there's anything else I can help with!
Fitted to a house voice that owns the mistake, gives a real date and never hides behind a canned window.
The whole atelier, in one line each
From the first fitting to the deployed endpoint, every part is measured to you.
Fine-tuning on your data and voice
fine-tuneWe fit the model to the way your company actually writes and decides, from your own corpus, not a generic instruction set. The result reads like you on your best day.
Alignment to your standard
alignmentYou write the standard once. Kethra aligns the model to it, so tone, refusals and house rules hold under pressure, not only in the demo.
Private, owned weights
weightsThe tailored weights belong to you. Export them, host them, keep them behind your own walls. Owned, not rented from the same shelf as everyone else.
Evaluation against your bar
evalEvery version is scored against a held-out eval built from your examples. You see the delta over the base model before anything is deployed.
One-click deployment
deployShip the model to a private endpoint in a single command, with versioning, rollback and an OpenAI-compatible API your engineers already know.
Ongoing refinement
refineStandards move. Each cycle re-fits and re-evaluates the model on fresh material, so the fit stays true rather than drifting out of shape.
You own it
A tailored model is not a subscription to someone else's shelf. The weights are yours to export, to host, to keep behind your own walls, and to carry with you if you ever leave. Kethra does the tailoring. The garment is yours.
the deed of ownership
- The tailored weights are your property, in writing.
- Export them at any time in a standard format.
- Host on our infrastructure or entirely inside yours.
- Your data trains your model only, never the shelf.
Owned, and it shows
Two of the teams building on a model of their own, worldwide.
“We stopped sounding like the default. Our support model answers the way our best agent would, and the eval score is the reason our board signed it off.”
“The weights are ours. That single fact changed the conversation with legal, and it is why a private model finally cleared review after two years of no.”
Priced to your currency
One tailored model, a house of them, or the whole atelier inside your own walls. Prices show in your local currency.
Studio
One model, tailored end to end
A single private model fitted to your data and your voice, evaluated against your bar, and deployed to an endpoint you own.
Book a fitting- One tailored private model
- Fine-tune on your data and voice
- Alignment to a written standard
- Held-out eval suite, scored monthly
- One-click deployment endpoint
- You own the weights, exportable
For a team ready to replace a rented base model with one of their own.
Atelier
A house of models
Several tailored models across teams and tasks, a shared eval bar, and a private atelier that keeps refining as your standard moves.
Talk to the atelier- Multiple tailored models
- Distillation to smaller, faster weights
- Shared eval bar across the house
- Ongoing refinement each cycle
- Priority fitting and review
- Named model tailor and SLA
For a company standardising on private models across more than one team.
Enterprise
Private, on your ground
The whole atelier inside your perimeter. Train and deploy on-prem or in your own cloud, with the weights never leaving your estate.
Contact sales- On-prem or your own cloud (VPC)
- Weights never leave your estate
- SSO, audit log, data residency
- Bespoke eval and safety review
- Procurement, DPA and security review
- Dedicated solutions engineering
For regulated and security-first companies that keep everything in-house.
Prices are shown in your local currency, converted from the USD home price at a fixed rate. Sales tax is added where it applies. Fitting, data handling and deployment are included in every tier.
Before you book a fitting
A model made to measure.
Yours alone.
Start free and tailor a sample yourself in a minute. Or book a fitting and we will build you a private model of your own.