Tencent-HY-MT1.5 - Tencent hybrid open source translation model series

What's Tencent-HY-MT1.5?

Tencent-HY-MT1.5 is the 1.5 version of Tencent's open source translation model, including 1.8B and 7B models, which support 33 international languages and 5 Chinese and Chinese/dialect translations.1.8B model is optimized for cell phones and other consumer-grade devices, and requires only 1GB of RAM to realize end-side offline translation, and takes only 0.18 seconds to process 50 tokens, with a performance that exceeds that of mainstream commercial APIs; 7B model is the upgraded version of the WMT25 champion model, which significantly improves the accuracy of translation. The 7B model is an upgraded version of the WMT25 champion model, which significantly improves translation accuracy. The two can be deployed together and have been applied to Tencent Conference, Enterprise WeChat and other products, supporting terminology customization, long text comprehension and format retention.

Features of Tencent-HY-MT1.5

• Multi-language supportThe program supports 33 languages and 5 languages/dialects, including Czech, Marathi, Estonian, Icelandic, and other minor languages, in addition to the usual Chinese, English, and Japanese.
• End-side deployment capabilityHY-MT1.5-1.8B is quantized to achieve offline real-time translation on consumer devices such as cell phones with only 1GB of RAM, and to process 50 tokens The average time spent on translation is only 0.18 seconds, much faster than the 0.4 seconds spent on mainstream commercial translation APIs.
• High quality translationsHY-MT1.5-1.8B has achieved 90th percentile results in FLORES-200 and other authoritative test sets for oversized closed-source models such as Gemini-3.0-Pro, and fully surpassed medium-sized open-source models.
• Enhanced utility: Supports terminology customization, contextual long text comprehension, and formatted text translation. Users can import specialized terminology lists, and the model optimizes subsequent translations based on the preceding context and preserves the original typographic formatting.

Core Advantages of Tencent-HY-MT1.5

• Efficient end-side performance1.8B version has been quantitatively optimized to realize offline real-time translation on consumer devices such as cell phones with only 1GB of RAM and fast processing speed, which is suitable for instant translation needs in mobile scenarios.
• High translation quality: Version 7B has a high translation accuracy rate, effectively reduces annotations and language mixing in translations, and achieves industry-leading translation quality, especially in specialized fields.
• Extensive language supportIt supports translation from and to 33 international languages and 5 ethnic Chinese/dialect translations, covering a wide range of small languages to meet diversified language needs.
• Thesaurus customization: Supporting users to import professional glossaries, the model will prioritize the adoption of user-defined standard terms in the translation process, ensuring the accuracy and consistency of key terms for translations in specialized fields.
• contextual coherenceLong text and dialogue context comprehension, ability to continuously optimize the subsequent translation results based on the previous context, enhance the coherence and consistency of translation, suitable for long content translation.
• Format retention capability: It can keep the formatting information unchanged before and after translation, and is suitable for translating structured content such as web pages and documents, ensuring that the translated formatting is consistent with the original text.

What is the official website of Tencent-HY-MT1.5

• Tencent hybrid official website:: https://hunyuan.tencent.com/
• GitHub repository(https://github.com/Tencent-Hunyuan/HY-MT)
• HuggingFace Model Library:: https://huggingface.co/collections/tencent/hy-mt15

People for Tencent-HY-MT1.5

• language learner: The multi-language support feature helps language learners to quickly translate and understand content in different languages, aiding in learning and practicing.
• travelers: The end-side deployment capability allows it to be used offline on mobile devices, and travelers can translate instantly without internet access, facilitating cross-language communication.
• content creator: Supports translation of multilingual and formatted content for creators who need to create multilingual content, such as video subtitling, cross-language literary creation, etc.
• professional: Terminology customization function meets the translation needs of medical, legal, scientific and technological fields, ensuring the accuracy and consistency of specialized terminology.
• business user: High-performance translation services are suitable for enterprise-level applications, such as document translation for multinational corporations, real-time translation for international conferences, etc., to enhance work efficiency.
• Technology Developer: The open source model is available for developers to download and use free of charge for easy integration into various applications to develop customized translation solutions.