Seed LiveInterpret 2.0 - Simultaneous Interpretation Model Launched by ByteHopper

What is Seed LiveInterpret 2.0?

Seed LiveInterpret 2.0 is a state-of-the-art simultaneous interpreting model launched by the Seed team of ByteDance, which supports bi-directional translation between Chinese and English. The model has near real-life translation accuracy and extremely low latency, with an average speech-to-speech delay of only 2-3 seconds, which is more than 60% lower than traditional systems. Seed LiveInterpret 2.0 uses a full-duplex speech generation and comprehension framework to support multiple voice inputs, and can replicate the speaker's voice in real time without the need to collect samples in advance. Seed LiveInterpret 2.0 is based on the multimodal large language model, supervised fine-tuning, and reinforcement learning, and intelligently balances translation quality and latency, with an accuracy of more than 70% in complex scenarios and more than 80% in one-person speeches. Currently, the model has been opened to the public through the Volcano Engine, and is widely used in international conferences, multi-language live broadcasts, distance education, cross-country business exchanges, and tourism and cultural exchanges.

Key Features of Seed LiveInterpret 2.0

• Ultra-low latency translation: It can realize real-time voice translation in both Chinese and English, with extremely low latency, almost the same as a professional simultaneous interpreter, making communication smoother.
• Real-time tone reproduction: Without the need to collect voice samples in advance, it extracts the speaker's timbre characteristics directly in the conversation, and outputs the translated speech in timbre to enhance the naturalness of communication.
• Intelligent Adjustment Output: Automatically adjusts the translation tempo according to the clarity and fluency of the input voice, ensuring accurate and real-time translation.
• Complex Scene Understanding: In complex scenarios such as multi-person conversations and mixed Chinese and English, potential errors can still be accurately understood and corrected, ensuring accurate and natural translation.

Seed LiveInterpret 2.0 official website address

• Project website:: https://seed.bytedance.com/zh/seed_liveinterpret
• arXiv Technical Paper:: https://arxiv.org/pdf/2507.17527

How to use Seed LiveInterpret 2.0

• Register and log in to your Volcano Engine account: Visit the Volcano Engine Seed LiveInterpret 2.0 Experience Portal at https://console.volcengine.com/ark/region:ark+cn-beijing/experience/voice?type=SI, register for an account and log in.
• Select Related Services: In the list of services for the Volcano Engine, confirm that the voice translation service associated with Seed LiveInterpret 2.0 is selected.
• Configure usage parameters: Configure the translation language direction (Chinese to English or English to Chinese), input/output mode and other parameters according to the requirements.
• Integration into applications: Integrate Seed LiveInterpret 2.0 into your own applications or services, such as live international conferences, distance learning platforms, and more.

Core Benefits of Seed LiveInterpret 2.0

• High translation quality with low latency: Highly accurate modeled translations with latency as low as 2 - 3 seconds, close to the level of professional simultaneous interpreters.
• Zero sample sound reproduction: No need to collect voice samples in advance, replicating the speaker's timbre in real time to enhance the naturalness of communication.
• Intelligently balancing translation quality and latency: Automatically adjust the output tempo according to the input speech conditions, taking into account both translation quality and real-time performance.
• Precise Contextual Understanding: High-quality comprehension and translation in complex scenarios, correcting potential errors.
• full duplex voice processingIt supports multiple voice inputs, so you can "listen and speak" like a human interpreter, and realize extremely low latency.
• Strong technology base: Improving speech understanding and generation based on multimodal macrolanguage modeling and reinforcement learning.
• Wide range of application scenariosIt is suitable for international conferences, multi-language live broadcasting, distance education, cross-country business communication and other scenarios.

Who is Seed LiveInterpret 2.0 for?

• Organizers of international conferences: Real-time translation of presentations to help attendees from different language backgrounds understand the conference information.
• Multilingual Live Streaming Platform: Provide real-time translation for the audience, breaking down language barriers and expanding audience reach.
• Distance learning institutions: Help students and teachers interact across language barriers to enhance the online education experience.
• multinational enterprise: Ensure accurate and efficient communication by translating conversations in real time during cross-border business meetings and negotiations.
• Tourism and cultural exchange organizations: To help visitors interact with local residents and understand cultural background and historical information.