You might also be interested in learning about AI translations that enable you to translate keys in bulk and the AI suggestions features.

Also make sure to check our free Lokalise AI course covering all AI-based features and providing best practices.

AI LQA is a new task type that allows to perform localization quality assurance on the provided content in a fully automated way.

It uses Lokalise AI assistant built on OpenAI's GPT API to automatically identify linguistic issues, categorize them according to the DQF-MQM framework and deliver detailed reports with comments and suggested corrections. AI LQA helps to improve translation quality without increasing costs.

Introduction

AI LQA is a task type powered by Lokalise AI, designed to streamline and automate the evaluation of translation quality. Here's what AI LQA offers:

Evaluate translation quality: Create tasks to assess translation quality in 30 different languages (see the full list below).
- Automatic assignment: The task is automatically assigned to the Lokalise AI assistant, ensuring a seamless workflow.
- Locked keys during evaluation: While the task is ongoing, all translation keys are automatically locked until the Lokalise AI assistant completes the evaluation for each respective language.
Completion notifications: Receive notifications when the language evaluation is finished.
Quality reports: Generate a comprehensive quality report that includes:
- A scorecard for each evaluated language.
- A detailed report with suggested corrections and comments from the Lokalise AI assistant.
Glossary adherence checks: AI LQA performs checks to identify translations that do not adhere to your glossary terms, helping maintain consistency across your content.

AI LQA typically takes just a few minutes to complete, though the time can vary depending on the amount of content and the number of languages involved. Once you've selected the languages and scope, you'll be able to see an estimated time of completion.

Supported languages

AI LQA currently supports the following languages and their variations for different locales:

Fully supported locales

Afrikaans
Arabic
Catalan
Chinese Simplified
Chinese Traditional
Czech
Danish
Dutch
English
Estonian
Finnish
French
German
Hebrew
Hindi
Hungarian
Indonesian
Italian
Japanese
Korean
Latvian
Lithuanian
Polish
Portuguese
Romanian
Russian
Slovak
Slovenian
Spanish
Swedish
Turkish
Ukrainian
Urdu
Vietnamese

Additionally, the following locales and their variations are supported in beta:

Locales in beta

Albanian
Armenian
Azerbaijani
Bengali
Bulgarian
Croatian
French (Reunion)
Georgian
Greek
Kazakh
Kyrgyz
Malay
Norwegian
Serbian
Slovenian
Thai
Uzbek

Note: This is not an exhaustive list. It will be updated as we improve the quality and build confidence in each language. If you'd like us to support additional languages and are willing to assist with quality evaluation, please let us know!

Using AI LQA

Keep in mind that AI LQA consume AI words quota. If the team that the project belongs to does not have any AI words left, you won't be able to create the AI LQA task. Refer to the Team quotas article to learn more.

Prerequisites

To get started with AI LQA, you have to enable Reviewing for your project.

First, proceed to the project and click More > Settings:

Then, find the Quality assurance section and tick the Reviewing option:

Don't forget to save the changes.

This is it, now you can start using AI LQA!

Creating a new LQA task

It's important to remember that a translation key cannot be assigned to a new task if it is already part of another ongoing task. To include such a key in a new task, you have two options:

Wait for the existing task to be completed: Once the task is finished, the key will be available for reassignment in a new task.
Remove the key from the current task: If you need to reassign the key immediately, go to the project editor, select the key, and use the Remove from task option available in the bulk actions menu. This will free up the key, allowing it to be included in a different task. However, if the key is already marked as completed in the task, it won't be possible to remove it from that task.

To get started with AI LQA, open any project in Lokalise and create a new task. There are two ways to create a task.

Via the editor

Start by selecting multiple keys in the editor. You can do this by ticking the checkboxes next to the keys you want to include in the task.

Once selected, choose Create task... from the bulk actions menu. This will take you directly to the task creation page, where the task scope is automatically set to the keys you’ve selected.

Via the Tasks page

Alternatively, you can create a task from the Tasks page in your project. Simply navigate to your project and go to the Tasks page:

Click Create a task. This will open the task creation wizard, where you can define the task's details and scope.

General task information

In the task creation wizard, you will see a new task type called AI LQA.

Select the AI LQA task, provide a task name, and add a description (you can include additional context here for the AI).

Once you've filled in the necessary details, proceed to the next step.

Adjusting advanced task options

The Advanced options for AI LQA tasks are limited to the following:

Tag keys after the task is closed — tag the translation keys included in the current task once it's completed. This helps you easily identify these keys later.

Some options are hidden and automatically enabled by default:

Lock translations (non-modifiable) — all translations added to the task will be locked until the Lokalise AI assistant completes the evaluation for each respective language.
Auto-close languages (non-modifiable) — once the Lokalise AI assistant completes the evaluation for a language, that language will be automatically closed, and the task creator will receive an email notification.
Auto-close task (non-modifiable) — the task will automatically close once all the added languages have been completed by the Lokalise AI assistant, and the task creator will receive an email notification.

Adjusting task scope

Select the scope and languages:

Task scope — adjust the filter to select the specific keys that should be included in the task. This allows you to focus the quality evaluation on the most relevant content.
Source language — choose the language that will be used as a reference for performing the quality evaluation. This is the language against which the translations will be assessed.
Target languages — select one or more languages that you want the Lokalise AI assistant to evaluate. These are the languages where the quality check will be performed.
Task assignees — you won’t be able to modify the assignees, as all languages will be automatically assigned to the Lokalise AI assistant for evaluation.

Task summary

On the right side of the task creation wizard, you'll find the task summary and your Lokalise AI words balance:

AI words quota: This section shows the AI words quota for your team and the number of AI words that will be consumed by this specific task. For more details on your team's quota, refer to the Team quotas article.
Estimated delivery time: The summary also provides an estimated delivery time for the task. Please note that this is an approximate figure and may fluctuate depending on the current system load.

Downloading a report

Once the AI LQA task is completed, the Download report button will become active. Click on it to download the report for the task:

The report will be downloaded in .xlsx format.

Each language evaluated will have its own separate sheet in the report.

Report breakdown

At the top of each sheet, you will see a quality metric scorecard summarizing all detected errors. To understand the categories and severity levels used, refer to the Translation quality evaluation framework section. ETPT (Error Type Penalty Total): This is calculated by multiplying the error count by the severity multiplier.

Below the scorecard, you'll find various calculations and key metrics:

Evaluation word count — the number of words that were evaluated for this language.
Reference word count — a hypothetical number of words (default is 1000) used for easier comparison across different scorecards. The purpose of this metric is to understand what would be the penalty score for the scope of X words.
Scaling parameter — a multiplier that adjusts the overall penalty total based on the importance of the content. For example, you might give more weight to high-visibility strings on your landing page compared to backend strings that aren't customer-facing. The default value is 1.
Max score value — the highest possible quality score for a language, usually set at 100.
Threshold value — the quality score threshold that determines whether the translation quality for this language is considered a pass or fail. The default value is 85.
Per-word penalty total — calculated by dividing the absolute penalty total by the evaluation word count.
Overall normed penalty total — represents the total error penalty per word relative to the reference word count (default 1000 words).
Overall quality score — the primary measure of translation quality, calculated by multiplying the per-word penalty score by the maximum score value (usually 100) and subtracting this value from 100, resulting in a percentage.
Pass/fail rating — indicates whether the quality score has passed the threshold.

Below the scorecard, a detailed report provides a granular breakdown of the issues that Lokalise AI found. Each error is represented in a separate row with the following information:

Suggested correction — the AI provides a corrected translation to fix the identified issue. In the future, these corrections may be available directly as suggestions in the Lokalise UI.
Comment — a comment from Lokalise AI explaining why the issue was flagged and what specifically is wrong with the translation.

Fixing issues using AI Suggestions

After the AI LQA task is completed, you’ll be able to view potential corrections in the AI Suggestions side panel. This panel appears when you're editing a translation:

In the example above, you can see one suggested correction for an issue detected during the AI LQA task.

Translation quality evaluation framework

AI LQA uses the DQF-MQM framework to perform linguistic quality assurance (LQA). This framework applies to both human and machine translation and is designed to standardize error categorization, providing structured data to minimize subjectivity in translation quality assessments.

The results help identify underperforming languages, conduct root cause analysis, and improve localization processes to achieve higher-quality translations.

The framework includes predefined categories and severity levels, with different multipliers based on how critical the error is.

At this time, it’s not possible to modify the existing error categories or adjust their weights.

Error categories

Category name	Description
Accuracy	Issues related to the correctness of the translation, including mistranslations, omissions, or additions.
Fluency	Issues affecting the naturalness and readability of the translation, such as grammar, syntax, punctuation, or spelling errors.
Terminology	Issues involving incorrect or inconsistent use of domain-specific terms.
Locale Convention	Issues with adherence to locale-specific conventions, such as date formats, number formats, or currency symbols.
Style	Issues related to following a specific style guide or maintaining the correct tone and voice in the translation.
Consistency	Issues with maintaining uniformity, such as using different terms for the same concept or inconsistencies in formatting.
Coherence	Issues that disrupt the logical flow or organization of the translation, like unclear references or improper sentence structure.
Design	Issues related to the visual presentation, including layout, formatting, or font problems.
Markup	Issues involving incorrect or missing markup elements, such as tags.
Internationalization	Issues affecting the adaptation of the content for a specific audience, including cultural relevance or region-specific examples.
Verity	Issues concerning the truthfulness or factual accuracy of the content, like outdated or incorrect information.

Severity levels

Severity name	Multiplier	Description
Neutral	0	Issues that have minimal impact on the overall quality and are considered inconsequential or insignificant.
Minor	1	Small issues that slightly affect translation quality but do not significantly hinder understanding or usability.
Major	5	Significant issues that affect quality and comprehension, potentially causing confusion or misunderstandings for the target audience.
Critical	25	Severe issues that compromise the accuracy, clarity, or usability of the content, making the translation unusable or misleading for its intended purpose.

Frequently asked questions

What context is used for AI LQA?

The AI uses the following context for evaluations:

Task description
Team style guide
Project glossary entries (when applicable)

What features are available?

You can use AI Translations to provide instructions to Lokalise AI and perform bulk translations that take into account context and your terminology.

How does Lokalise AI translation work?

Lokalise AI leverages OpenAI models to assist with translations. We enhance these models by allowing you to add context, which helps Lokalise AI deliver more precise and accurate translations that align with your specific needs.

What types of content can be translated using Lokalise AI?

Lokalise AI is versatile and can handle various content types, including websites, documents, emails, marketing materials, and user-generated content. It adapts to different industries and formats, making it ideal for businesses targeting global audiences.

How accurate are Lokalise AI translations?

The accuracy of Lokalise AI translations can vary based on language pairs and content complexity. Generally, we estimate around 80% accuracy, with minor adjustments needed for the remaining 20% to fit your specific requirements.

Can Lokalise AI handle translations of highly specialized or technical content?

Yes, Lokalise AI is capable of translating highly specialized or technical content. The AI models are trained to understand complex terminology, ensuring accurate translations even in specialized fields.

How will my data be used?

For AI LQA, only the source text, target translations, key descriptions, and relevant glossary terms are processed. This data is used for machine learning purposes unless you opt out. Machine learning is crucial for developing new AI-powered features and improving existing ones.

Onboarding guide for translators