Translation Quality Index (TQI) is our approach for a comprehensive translation quality scoring index. Integrated with Transifex AI, TQI leverages machine learning algorithms to provide a comprehensive framework for real-time translation quality assessment.
It is calculated for each AI translation and evaluates its accuracy, grammatical and syntactical quality, and adherence to linguistic style, ensuring it aligns with your brand's tone of voice. This robust system enhances focused post-edits, automates quality assurance, and facilitates rapid content deployment across multiple languages, streamlining your localization process.
TQI calculation
TQI is being calculated in real-time upon generating translations either through AI Tasks or AI Fillups; it is then displayed right next to each translation in the Editor:
In addition to real-time scoring of AI-generated translations, you can also evaluate the quality of existing translations using TQI Calculation tasks. These tasks let you select a batch of translated content and run a quality assessment.
TQI Ranges
The TQI ranges help assess the quality of the translations, giving you a quick insight into how accurate and reliable the AI-generated content is. Here's a breakdown of the TQI ranges:
0.85–1.00: Good
0.70–0.85: Fair
0.50–0.70: Poor
<0.50: Unusable
Not Available: AI Translation has not been saved or reviewed yet
📝 Note: Please keep in mind that if you edit a source string and keep its existing translations, or if you edit and save an AI-generated translation, the TQI score for that translation will no longer be shown.
📝 Note 2:TQI scores are not calculated automatically for translations created or edited manually in the Editor. If you want a TQI score for these translations, you need to create a TQI Calculation task.
Using TQI
To locate AI translations within a specific TQI range, utilize the available filters (under 'More'). You can specify a threshold to filter TQIs that are either lower or higher for further review.
📝 Note: Upcoming features will allow you to set up advanced automation to enhance the localization workflow, such as automatically approving translations that meet or exceed a designated TQI score threshold.
TQI Insights and Breakdown
To provide better transparency and actionable insights, you can now view a detailed breakdown of how each TQI score is calculated, including recommendations on improving translations.
Accessing Detailed Analysis
When checking a translation generated by Transifex AI, you can view a detailed breakdown by clicking the TQI score in the editor. Alternatively, use the shortcut Ctrl+T for quick access.
The modal window that opens displays the score for each TQI component:
Translation Consistency: Measures similarity between translations generated by multiple LLMs, indicating alignment, context clarity, and manageable complexity.
Structural Integrity: Verifies adherence to formatting, glossary use, and structural elements like HTML tags to ensure technical correctness.
Semantic Quality: Assesses the translation’s quality using the MQM framework, evaluating how closely it resembles human-level accuracy.
Issues: If the Semantic Quality component identifies any possible issues with the translation, they will be under this tab. Issues are color-coded by severity level (critical, major, and minor), allowing you to make adjustments easily and efficiently.
If you find an issue helpful and informative (or not), you can provide immediate feedback by clicking the respective 👍 or 👎 icon. This feedback will help us continuously improve Transifex AI and the algorithm for calculating TQI.
Variants: During the AI translation process, multiple LLMs are responsible for generating translations so that we can provide you with the best possible result. If a provided translation isn't quite right, we provide suggested and alternate variants that could fit better with what you had in mind.
⚠️Warning
TQI analysis is available for translations that have been scored after November 5th, 2024.
Variants are available for translations that have been generated after October 30th, 2025.
TQI in Workflow Automation
In addition to assessing translation quality, TQI can be used to automate key parts of your localization workflow. These automation options help reduce manual steps and accelerate the review and delivery process when translations meet your quality standards.
Available automation options
Beyond evaluating AI-generated translations, the Translation Quality Index (TQI) can also be used to automate parts of your localization workflow. These automation options allow you to reduce manual effort while maintaining quality standards. To enable these options:
Go to the Project Settings of your desired project.
Open the Workflow tab.
Scroll down to the Quality Assurance section.
Under Review, enable the available TQI-based automation options and set the desired TQI threshold for each.
You can configure the following actions based on a TQI threshold:
Automatically review translations
AI-generated translations that meet or exceed the defined TQI threshold are automatically marked as reviewed and added to the Translation Memory (TM), without requiring manual input.
Automatically add unreviewed AI translations to Translation Memory
AI translations that meet the TQI threshold can be added to TM even if they haven’t gone through manual review.
💡Tip
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