Introducing Hummingbird, The Best Lip Syncing API

Create perfect lip synchronization with just a few API calls. Hummingbird delivers photorealistic results that preserve identity and emotion.

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Why Should You Use a Lip Sync API?

A lip sync API automates the process of matching mouth movements to audio, saving significant time in production workflows.

By integrating Hummingbird, developers can create perfectly synchronized, natural-looking videos for content localization and personalized messaging at scale.

This technology provides a seamless foundation for video customization, whether for global audiences or tailored experiences.

A Best-in-Class Lip Sync API for Market-Leading Realism at Lower Cost

Post-Production Video Editing

Hummingbird streamlines post-production by automating the most time-consuming aspect of video editing. Reduce editing time from days to minutes while maintaining studio-quality results.

Original Identity Preservation

Tavus’ lip sync API preserves the unique facial characteristics, micro-expressions, and visual nuances of the original speaker.

Scalable Personalization

Transform a single source video into thousands of personalized versions with different audio tracks, enabling mass personalization for marketing, sales outreach, and customer engagement.

Localized Content

Hummingbird synchronizes lip movements across 30 languages with native-like precision, making global content distribution simple and cost-effective.

No Training Required

Unlike competing solutions, Hummingbird works out of the box without extensive model training.

Photorealistic Lip Syncing

Hummingbird achieves unmatched realism with perfectly synchronized speech that looks completely natural.

The Easiest Lip Syncing API Integration

1. Integrate Tavus With a Few API calls

Connect Hummingbird to your application with simple API calls and access Tavus’ suite of models for conversational AI video experiences.

2. Provide Original Clip for the Model

Submit a front-facing video clip of the speaker talking naturally. This provides the visual foundation for accurate lip synchronization.

3. Let Tavus Do the Rest

Hummingbird handles the complex processing automatically, providing perfectly synchronized results.

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Experience Unparalleled Lip Sync API Performance

The Conversational Video Interface powers AI agents that not only look real – but can see, hear, and interact live on a video call.

Superior Visual Quality

Achieve exceptional visual fidelity with an FID score of 63.92—37% better than the closest competitor—ensuring videos look natural and professional.

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High-Quality Identity Preservation

With an Arcface score of 0.84 (7% better than competitors), Hummingbird maintains the speaker's identity with remarkable consistency.

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Exceptional Lip Synchronization

Our LSE-D score of 6.74 is 7% better than the closest competitor, delivering precise synchronization between audio and lip movements.

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Fast Implementation With White-Labeled APIs

Integrate Hummingbird into your products without branding constraints. Tavus’ white-labeled APIs let you maintain your brand identity while leveraging advanced technology.

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FAQs

Can you use AI for lip syncing?

Yes! AI can be used for lip syncing for multiple purposes. You can use AI lipsyncing to generate and create new video content for different customers, services, and products.AI lip syncing can also be used for:E-learningVirtual assistantsDigital avatars and humansDubbing and translating video content

How do I automatically translate videos?

Use Hummingbird to automatically translate videos by providing the original video and a translated script or audio file. The API synchronizes lip movements with the new audio, creating natural-looking dubbed content without recording new footage.

Hummingbird also enhances conversational AI video experiences by enabling seamless, real-time multilingual interactions, making virtual communication more engaging and accessible across different languages.

How does AI video translation work?

AI video translation combines speech recognition, machine translation, and lip synchronization. The system extracts the original speech, translates it to the target language, generates new audio, and synchronizes lip movements to match the translated audio.

How can I use AI lip sync?

Developers can integrate Hummingbird into applications for content localization, personalized marketing, training videos, and customer support. The lip syncing API enables automatic synchronization between audio tracks and visual lip movements.

What industries benefit from lip syncing APIs?

Entertainment, education, marketing, healthcare, and customer service all benefit from lip syncing APIs. Any industry that uses video content can leverage this technology to scale production and reach global audiences.

Are there other lip syncing tools available?

Yes, there are lip syncing tools available. The best lip syncing API should be able to meet your needs and wants as a developer. Tavus' lip sync API, Hummingbird, is completely customizable. It allows users to edit or change specific parts of the video message for a new variable or recipient. Hummingbird can then take those changes and generate a new version of the general video.

Does a lip sync API clone your face and voice?

The lip sync API is designed to synchronize lip movements with audio, typically for creating avatars, animations, or digital avatar applications. In other words, the lip sync API itself isn’t cloning your face and voice.

But Tavus' Hummingbird API works alongside Phoenix-3, which can copy and replicate your face, voice, behavior, and more to ensure realistic, human-like results. Users can train their digital replica with just two minutes of sample video.

Is a lip syncing API the same as a text-to-speech API?

They’re not the same, but some APIs and AI platforms may offer both lip syncing and text-to-speech services. For example, Tavus API can automate lip syncing, build conversational video experiences, generate talking head videos, and more—all from text or script.

Is it legal to modify a video with AI lip sync?

The legality of using AI lip sync depends on factors like the purpose, content, and local laws. Modifying your own video or one with explicit permission is generally allowed, but altering copyrighted material without authorization may infringe on intellectual property rights. Misusing AI lip sync for deceptive purposes, such as deepfakes, could also violate laws on defamation, privacy, or fraud.

Tavus ensures ethical use by only allowing users to implement their own digital replicas or stock avatars from Tavus’ library. Transparent policies also outline clear user capabilities, limitations, and responsible use.

Does AI lip sync work in real-time applications?

Yes, Hummingbird supports real-time applications with low-latency processing. This makes it suitable for live interactions, virtual assistants, and conversational interfaces where immediate response is essential.

Try the Most Reliable Lip Syncing API

Start building with Hummingbird today and transform how you create video content. Our easy-to-use API delivers unmatched realism with minimal time and effort.

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