---
title: Translation Writing with AI: Native-Sounding Copy | Smartcat
description: Adapt existing copy into 280+ languages with AI that follows your tone, register and glossary. Refine lines in the editor, then publish. Try Smartcat free.
canonical: https://www.smartcat.com/ai-translation-writing/
language: en
updated: 2026-10-05
---

# Translation Writing with AI: Native-Sounding Copy | Smartcat

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## AI Content Creator for Global Teams

Quickly generate original, multilingual content with Smartcat's AI Agents that capture your brand voice.

- [Book a demo](https://www.smartcat.com/book-a-demo/?ai-content-generator)

## Scale Your Content Creation with Smartcat AI

### 92%

### Words Accepted Without Edits

In 2026, 92% of words translated by Smartcat AI for paying customers were accepted without a single human edit.

### 0

### No Redundant Effort

AI Agents learn from every edit to reuse brand intelligence and eliminate rework.

### 280+

### Global Reach

Automatically adapt all assets for every market with multilingual AI Agents built for scale.

### Realize any content concept in moments

Harness Smartcat’s AI to automatically craft quality content in your chosen languages.

### Boost your content performance and efficiency

Experience superior speed and quality that extends your content budget further.

### Your versatile AI content innovator

From eLearning courses and marketing copy to emails and web pages, Smartcat AI handles every content need.

## From Source Copy to Native-Sounding Versions in Three Steps

Start with copy you already have. Smartcat translates it with your instructions, then you refine each language until it reads as if it were written there.

### Upload the copy you have

Web pages, emails, product descriptions or help articles, in any of 80+ file formats.

### Set tone, register and terms

A custom prompt tells the AI how to write for each content type, and your [glossary and forbidden terms](https://help.smartcat.com/customizing-ai-translation-with-custom-prompts/) are enforced.

### Refine and approve

Rephrase, shorten or adjust lines in the editor, then have an in-market reviewer approve them.

## Security:

Smartcat is SOC 2 Type II compliant. Your copy is encrypted in transit and at rest, and role-based access controls who can open each project.

## Adapt Copy Without an Agency Round-Trip

Turn finished source copy into localized versions your regional teams can publish, at a fraction of agency cost.

### 96%

### lower translation costs

Enterprise teams using Smartcat cut translation costs by 96% compared with traditional agency rates in 2026.

### 80+

### file formats

adapted with layout and tags kept intact

### Unlimited

### users on every plan

for writers, reviewers and in-market editors

### 15,000

### free Smartwords

to test on your own copy for 15 days

## Tell the AI How to Write in Each Language

Translation that only swaps words reads like translation. Custom prompts let you set the voice your audience expects.

### A preset for each content type

Create **AI engine presets** with their own instructions for marketing copy, product descriptions or legal text, and choose GPT-4o, Claude or Gemini for each.

### Terms you use, terms you never use

Glossary terms and **forbidden terms** go straight into the prompt, so brand names stay untranslated and banned wording never appears.

### Self-review for high-stakes copy

A multi-step prompt makes the AI **translate, review and revise** its own output before the final version reaches your editor.

## Adjust Wording Line by Line, Not File by File

AI Actions work on the segments you select in the editor, so you fix a headline without retranslating the page.

**Built-in actions for everyday edits**

Select segments and run **Rephrase, Shorten, Fix grammar** or **Fix punctuation** for the target language's typography.

**Custom actions for your house style**

Create actions such as "Make more formal" and share them with the linguists working on your projects.

## Up to 70% Lower Translation Costs at Stanley Black & Decker

Stanley Black & Decker now pays **$1.20 per 1,000 words**, against $200–300 per 1,000 words before Smartcat.

See the numbers in the [Stanley Black & Decker case study](https://www.smartcat.com/cases/stanley-black-and-decker/).

- [Book a demo](https://www.smartcat.com/book-a-demo/?from_ai-translation-writing)

## Adapt Copy Where It Lives

Translate files in **80+ formats** or pull copy straight from the platforms you publish on.

### Files keep their layout

Translate [documents](https://www.smartcat.com/translate-document/) such as DOCX, XLIFF and PDF and get them back in the same format.

### Connected content platforms

Sync copy with Contentful, WordPress, Webflow, Zendesk, Figma and more, so updates are translated where they are published.

Connect the Tools Your Copy Lives In

- [See all integrations](https://www.smartcat.com/integrations/)

## Where AI Translation Writing Pays Off

Use it wherever copy must sound local, not translated, and stay on-brand across markets.

### Marketing campaigns:

Adapt headlines, emails and ads to the tone each market responds to.

### Product descriptions:

Keep specs exact while the selling copy reads naturally in every language.

### Website pages:

Localize landing pages so local visitors do not notice a translation.

### Help articles:

Translate support content in plain, consistent language for every region.

### Formal or informal register:

Choose formal or informal "you" per market and apply it everywhere.

### Source updates:

Re-upload a changed file and translation memory restores unchanged segments.

### Regulated text:

Use a domain preset and add a professional reviewer for legal or medical copy.

### Native review:

Hire an in-language editor from the Smartcat Marketplace inside the project.

### Content Translator coworker:

An AI coworker that applies your brand voice and terminology to each job.

Jun 17, 2026

“Has been a gamechanger in terms of us being able to create campaigns and localise/translate at pace across all the markets we operate in. We were able to integrate with our ESP directly.”

Verified User in Food & Beverages, Mid-Market

Jun 29, 2026

“The translation memory and AI suggestions help me work faster. They usually preserve the document's formatting, which saves me time.”

Hika T., Freelance Translator

Jun 09, 2026

“I find Smartcat easy to use and it helps me find the resources I need. The initial setup was also easy… it helps translate when no native speaker is available.”

Verified User in IT & Services, Enterprise

### What is the best AI tool for translation writing?

Look for a tool that lets you **instruct the AI** on tone and register per content type, enforces your glossary, and lets editors adjust single lines without retranslating.

Smartcat fits teams adapting a steady flow of existing copy into many languages. If you only translate occasional short texts, a simpler tool may be enough.

### Can I try AI translation writing for free?

Yes, with the trial: **15,000 Smartwords over 15 days**, no credit card. Smartcat has no free-forever plan.

Upload a page you know well, translate it with and without a custom prompt, and compare which version your in-market colleagues would publish.

### How do I make AI translations sound natural?

- Write a system prompt that names the audience, tone and register.
- Add your glossary and forbidden terms.
- Create separate presets for marketing, product and legal copy.
- Polish lines with AI Actions such as Rephrase or Shorten.
- Have a native speaker approve the final version.

### How accurate is AI translation for marketing copy?

In 2026, **92% of words** translated by Smartcat AI for paying customers were accepted without a single human edit.

Marketing copy is where the remaining edits tend to land: slogans, wordplay and cultural references. Plan a native review for headlines and calls to action.

### Is my unpublished copy safe?

Smartcat is **SOC 2 Type II** compliant, encrypts content in transit and at rest, and uses role-based access per project.

On written request, Smartcat deletes or returns your content within 30 days, which matters for launch copy that must not leak before release.

### What are the alternatives to AI translation writing?

Agencies offer **transcreation**, and in-market copywriters can write local versions from a brief. Both suit flagship campaigns.

The honest trade-off: AI with good prompts handles most product, web and support copy well, but a slogan built on wordplay usually needs a human copywriter in that market.

### What is the difference between translation and transcreation?

**Translation** keeps the meaning and structure of the source. **Transcreation** rewrites the message so it has the same effect on a local audience, even if the words change.

Custom prompts and AI Actions move AI output closer to transcreation, but creative concepts still need human sign-off.

### Can I control formal and informal address?

Yes. State the register in your preset's system prompt, for example formal address for German B2B copy.

You can also create a custom **AI Action** such as "Make more formal" and run it on selected segments in the editor, then share it with the linguists on your projects.

### How do I stop the AI from translating brand names?

Add brand and product names to your **forbidden terms** list in the workspace glossary settings, and include the forbidden-terms block in your system prompt.

The AI then keeps those names unchanged in every language, and glossary terms are applied the same way.

### Do custom prompts use more Smartwords?

No. Custom prompts do not change Smartwords consumption. Cost is based on the **source word count** and content type, not on how long or detailed your prompt is.

Start with a short prompt and add rules only when you see a repeated problem in the output.

### Which AI models can I use?

Custom prompts work with **LLM-based engines** such as GPT-4o, Claude and Gemini. They are not available with neural machine translation engines like Google NMT or DeepL.

More capable models follow complex instructions more reliably, so use them for high-stakes copy and lighter models for volume.

### What happens when the source copy changes?

Re-upload the updated file with the **same filename** and choose Update. Unchanged segments keep their translations from translation memory, and new or edited segments are marked for translation.

Pre-translation after an update can use Smartwords, except in formats with segment IDs, where only changed segments are processed.

## AI Translation Writing FAQ