AI translations that sound like you, not like AI
Custom AI Profiles personalize AI translation using your own past translations, so results stay consistent, on-brand, and ready to publish with minimal editing.
Custom AI profiles are included in Advanced and above plans. Some limits apply.
3000+ teams going global with products that feel local
Publish-ready AI translation
95% of the time
Custom AI profiles are powered by Retrieval-Augmented Generation (RAG) to dynamically retrieve your most
relevant past examples and use them to guide each translation so that it’s personalized to your brand
Consistency you can trust
Brand voice preserved across languages
Non-literal and natural sounding
Terminology stays aligned
Style remains predictable
Speed without compromise
Up to 95% acceptance rates, human-like results
Fewer edits required
Faster publishing
Cost efficiency
Up to 97% cost savings due to reduced reliance on human post-editing
Less manual review
Scalable localization workflows
Quality that improves automatically
As your translation data grows, so does AI precision
No retraining required
Consistency you can trust
Brand voice preserved across languages
Non-literal and natural sounding
Terminology stays aligned
Style remains predictable
Speed without compromise
Up to 95% acceptance rates, human-like results
Fewer edits required
Faster publishing
Cost efficiency
Up to 97% cost savings due to reduced reliance on human post-editing
Less manual review
Scalable localization workflows
Quality that improves automatically
As your translation data grows, so does AI precision
No retraining required
“AI Profiles have significantly strengthened how we use AI translations, especially for recurring or structured content. We saw an immediate impact on efficiency and consistency, all while protecting and maintaining our brand voice. This gives us a strong foundation to scale our localization efforts confidently as we continue to grow.”
Daniela Soto Hernández
Translator at Fetch
Why generic AI translation isn’t enough
Most AI translation tools can be accurate, but they aren’t consistent. Without brand context, even high-quality AI translators may produce:
đź‘Ž Literal translations that sound robotic
đź‘Ž Tone inconsistencies across pages
đź‘Ž Terminology variation between projects
đź‘Ž Slower review cycles
This is where customizable AI translation becomes essential.
AI that adapts to you
We use Retrieval Augmented Generation (RAG), an advanced approach that guides AI with your own examples instead of retraining models.
The numbers speak
90-95%
acceptance rates
Equal to professional human or human-reviewed translations*
up to 97%
cost savings
Save budget without compromising on quality
* These results come from guided evaluations with Enterprise customers using real content and workflows, where human reviewers scored first-pass quality and compared outcomes of Custom AI profiles against their human or human-reviewed translations.
Prove AI quality on your content, in 15 minutes
See the proof, not just the promise. Run an automated, in-product evaluation of your Custom AI Profile against other AI translation methods — on your own content, at zero external evaluation cost.
See how it works →
Built for high-quality, long-format
translation with AI
Custom AI Profiles are especially valuable for content types that require tone, clarity, and intent (never literal translation):
Product documentation
Knowledge bases
Marketing campaigns
Legal or regulated content
Multi-page website
localization
Customizable AI translation for
every use case
You can create multiple profiles for different needs. Each profile uses different data sources, so AI always applies the right style to the right content.
Marketing vs legal tone
Product vs support content
Regional voice differences
Brand or department-specific terminology
Marketing vs legal tone
Product vs support content
Regional voice differences
Brand or department-specific terminology
Generic AI vs Custom AI Profiles
Generic AI
Custom AI Profiles
Accuracy
Medium-High
Very high
Consistency
Good
Excellent
Personalization
Context can be added but you risk inconsistency and “AI amnesia”.
Fully tailored with linguistic assets as well as past examples from Translation Memory and past history.
Acceptance rate
65-70% on average
Up to 80% when the right context is set up.
Up to 95% (human-like)
Output style
Generic,
“AI sounding”
Brand-specific
Watch on demand | AI translation quality, measured: Prove it on your content
See how to evaluate AI translation quality on your own content — in 15 minutes, inside Lokalise.
FAQs
What is Custom AI translation?
What is Custom AI translation?
Custom AI translation is AI translation that adapts to your organization’s terminology, tone, and writing style using your own historical translations and approved examples.
Unlike generic AI translators, a tailored AI translation system reflects how your company actually writes, not just what words mean.
What makes Custom AI translation different?
What makes Custom AI translation different?
It uses your real translation history, not generic language patterns, to generate tailored output.
Is this better than a style guide?
Is this better than a style guide?
Yes. Style guides tell AI what to do. Custom AI Profiles show AI real examples of how you do it.
Does the AI learn over time?
Does the AI learn over time?
Our AI itself isn’t trained and then retrained. Instead, using RAG it dynamically retrieves newer examples each time, so results improve instantly.
Can I create multiple profiles?
Can I create multiple profiles?
Yes. You can set up different profiles for teams, content types, brands, or regions (plan-dependent).
How do I know Custom AI Profiles are actually better for my content?
How do I know Custom AI Profiles are actually better for my content?
You don’t have to take our word for it. Run an in-product evaluation that compares your Custom AI Profile against other AI translation methods — using your own content, with results in about 15 minutes. You’ll see clear metrics and side-by-side translation examples, not benchmark claims.
Is the evaluation biased toward Lokalise?
Is the evaluation biased toward Lokalise?
No. It compares each AI method against your own existing translations, not a Lokalise benchmark, and it uses deterministic, industry-standard similarity metrics — not AI judging AI. The same translation always scores the same way.
Is the setup difficult?
Is the setup difficult?
No. Profiles are quick to create and easy to apply. No technical expertise required.
Your AI should translate like your team writes
Not like a machine.
Unlock customizable, high-accuracy AI translation you will trust every time with Custom AI Profiles.
Case studies
Behind the scenes of localization with one of Europe’s leading digital health providers
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