Artificial intelligence is capable of producing remarkable visual and audio content. One of the outstanding technologies implemented in the content creation process is, without a doubt, lip synchronization. Lip sync technology is essential because it ensures that the speaker’s mouth movements match the audio component in the footage. This synchronization between the audio and visual elements is truly necessary to create professional, high-quality materials and boost the viewing experience.

AI-driven lip sync technology can be used in video translation and dubbing and also to generate entertaining clips. Now, with the aid of the right tools, you can for instance give voice to some of your favorite characters. And this makes a huge difference when it comes to AI videos, because it simply makes them more interactive. Until recently AI-generated videos consisted of various slideshows with music or diverse scenes and situations which lacked interaction. Now you can take things to a whole new level by adding a voice to generated animations and accurately aligning the lip movements with the sound.

Here are the best AI lip sync tools you can currently put to use for your projects:

Runway

Runway is simply one of the best platforms for AI-driven content creation. This software comes packed with all the necessary features to create video, image, audio or 3D models. With Runway you have the possibility to generate:

• lip sync video
• video from text, image or video
• image from text or image
• audio from text
• 3D models and textures

The tool allows you to clean your clips by removing unwanted background noise and to add dialogues and voiceovers to videos with text to speech and lip sync technology. The process of creating a lip sync video is really simple. All you have to do is:

1. Drag & drop or upload your video (you can also select from saved assets or built-in scenes).
2. Manually enter the desired text or upload an audio file.
3. Assign a face and voice for each paragraph.
4. Hit the Generate button.

Pros

• Intuitively designed for easy navigation.
• Plenty of built-in voices to add to your videos.
• The tool does a pretty good job of matching the lip movements to the audio.
• The impressive array of video generation and editing options.

Cons

• Generating a video in the free plan takes some time, even when a short dialogue is added.

Pricing

Runway offers a free version, which entitles you to create up to 3 projects. To upscale the resolution, remove the watermark or extend the length of the generated videos you’ll need to upgrade to one of the paid plans:

• Standard: $12/month
• Pro: $28/month
• Unlimited: $76
• Enterprise: $125

Pika

Pika makes it possible to create a wide array of videos, from cartoons to short films, starting from a text prompt, an image or an already-existing video. The tool offers its own feature to sync the lip movement of a character with the voice, while preserving the full motion of the generated clip. To use the feature just:

• Upload your own video/image (you can also generate a new clip).
• Click on the Lip Sync button.
• Either type in the text you want your character to say and select a preset voice or upload your own audio (mp3 and mp4 formats supported).
• Click on Attach and continue.
• Use the timeline selector to trim the audio to match the length of the video.
• Hit the Generate button.

One of the interesting features of Pika is represented by the sound effects. The software allows you to simply describe, in a text prompt, the sound you’d like to add to your video. There’s also an option to generate them automatically.

Pros

• The ease of use.
• It generates your video in a decent amount of time.
• The lip sync feature is available in almost any language.
• Some of the most affordable subscription plans.

Cons

• The biggest con is the fact that the text to speech generation is available only in the paid version.
• The video length is limited to 3 seconds in the free plan.

Pricing

Pika offers a free version called Basic with 250 initial credits (10 credits/3-second video, generating lip sync audio requires 2 credits each). You can download the videos, but if you’d like to remove the watermark, upscale the resolution or increase the length you’ll have to select one of the paid editions:

• Standard: $8/month
• Unlimited: $28/month
• Pro: $58/month

Rask

Rask is an AI video localization and dubbing tool. The platform offers visual content creators and brands the opportunity to translate their audio and video materials in 130 languages, making it an optimal solution to expand your reach and connect with new audiences. Among others, you can use the software to:

• Create a translation, a transcript or voiceover for your video.
• Communicate in 30 languages using your own voice.
• Sync mouth movements with the audio in the translated video.
• Assign a different voice to each speaker in the video.
• Add subtitles to your videos.

With Rask you can generate a lip sync video in three stages:

1. Add your video. You can upload a video (numerous formats available) or copy a link from YouTube or Google Drive.
2. Choose the preferred language, click on the Translate button and enable the Lip Sync option.
3. Download the generated video.

Pros

• The possibility to translate your video content in so many languages.
• The translations are quite accurate.
• Natural-sounding voiceovers.
• You can make changes to both the original language and the translated one.
• You can save your voice presets for later use.

Cons

• The biggest drawback is the fact that you can’t test the lip sync feature freely. In order to do that you’ll need to upgrade to the Creator Pro plan.
• The fact that you can’t translate the video and apply the lip sync feature simultaneously. Doing them only in turn, one after the other can be an inconvenience.

Pricing

Rask provides a free trial period, during which you can upload a maximum of 3 videos and generate a 1-minute clip for each of them. There are four paid editions available:

• Creator: $50/month
• Creator Pro: $120/month
• Business: $600/month
• Enterprise: Custom

Vozo

Vozo is a platform which allows you to make changes to your videos using prompts. You can rewrite and redub clips, edit the voice, localize your content in more than 30 languages and dialects, sync the lip movements to the speech or automatically repurpose your videos by trimming, reframing and adjusting the aspect ratio. The software can be used by:

• Content creators to repurpose long videos into engaging short clips.
• Ad agencies to change scripts, redub and lip sync videos.
• Marketers to translate product videos into various languages.
• Educators to add voiceovers to their learning materials.

Vozo comes with a useful AI-driven lip sync function, which can handle up to 6 speakers in a video. In order to use it simply:

• Import your video. You can upload MP4, MOV, WebM, AVI or WMW files or paste a link from YouTube, TikTok, Google Drive, Zoom or Rumble.
• Upload the desired audio track or use the audio from the video.
• Select the number of faces in the clip.
• Start the lip sync.

Pros

• User-friendly design.
• Accurate sync between the mouth movements and audio track.
• Full HD resolution and no watermark on the generated videos in the free plan.
• All the key features are free to test.

Cons

• Really long processing times in the free plan.

Pricing

Vozo offers users a 7-day free trial, time during which they can test some of the core features of the software. Among others you benefit from 3 minutes of video processing for the lip sync feature. To remove the limitations, you can upgrade to one of the paid plans:

• Creator: $15/month
• Business: $79/month
• Enterprise: Custom

Gooey

Gooey is a platform that gathers a large variety of generative AI tools. Depending on your needs, you can use this software to create interactive chatbots, to compare language models, scan PDF’s, scrape websites and transcribe/translate YouTube videos or improve your marketing and SEO. It’s possible to edit images using prompts, to generate portraits, compare AI image generators, generate animations or QR codes.

Naturally, Gooey can be used for your lip sync needs. The platform offers two options in that sense:

• Lip sync AI
• Lip sync with text-to-speech

Lip sync AI allows you to generate realistic lip sync animations from an audio file, while the second option gives you the possibility to enter the desired text to generate audio for your clip. No matter which feature you choose, the process is quite simple. Here’s how to generate a lip sync video using your own text:

1. Upload a video or image which contains a face.
2. Input the text you wish to use.
3. Choose your lip sync model, text-to-speech provider (Google, OpenAI, Suno and more) and the preferred voice.
4. In Settings you can add some lip sync face padding for better results (optional).
5. Click on the Submit button.

Pros

• Clearly structured, really easy to use.
• The possibility to choose the voice for your video from multiple sources.
• A free plan quite generous in credits and features.
• Among the tools tested, it proved to be one of the fastest in generating videos.
• No watermark on the generated content.

Cons

• Low 480p resolution for the exported videos in the free version.

Pricing

Gooey offers a free Starter plan, which includes 1.000 credits, with approximately 10 lip sync minutes available. There are three paid plans to choose from:

• Creator: $20/month
• Business: $199/month
• Enterprise/Agency: Custom

Sync Labs

Sync Labs is an AI lip sync tool particularly developed for this purpose. The software is designed to automatically detect humans in a given video and align their lip movements to the audio track in an accurate, natural way. The platform can be used for movie dubbing, apps, games, animations and also by content creators and podcasters who wish to reach new audiences. This is because it offers a feature to translate original videos into multiple languages with realistic lip synchronization.

Sync Labs places at your disposal three ways to incorporate audio into your video. You can drop an audio file, enter an URL or input a text (in any language) to turn into audio. The tool lets you select from several built-in voices, but also create a new voice by uploading your own MP3 or WAV file. The lip synching process is far from complicated:

1. Load your video. Drop a file or paste a link.
2. Load your audio. Drop a file, paste a link or generate from text.
3. Select your lip sync model.
4. Click on Generate.

Pros

• Simple, user-friendly interface.
• Straightforward process of lip synching a video to an audio.
• The possibility to choose from various models to make the lip sync more accurate.
• The key features are included in the free version.

Cons

• Limited array of features in comparison to other tools.
• The watermark applied to the generated videos in the free plan is obtrusively placed in the center.

Pricing

Sync Labs comes with a free plan, which lets users generate 5 minutes of content per month and process one video at a time. To enjoy additional minutes, remove the watermark and process multiple files at once you can upgrade to one of the three paid editions:

• Creator: $19/month
• Developer: $49/month
• Business: $249/month

Emotech

Emotech is an AI-powered platform that has developed various technologies for different sectors. Here’s what you can accomplish with this tool:

• Create AI digital avatars.
• Generate human-like speech and animations with LipSync and FaceSync technologies.
• Multi-lingual speech generation.
• Multi-modal AI teaching assistant.

The software uses the LipSync and FaceSync features to generate human-like lip, tongue and facial expressions which perfectly align with the given speech. All you have to do is input your audio file or transcript, and the tool will automatically generate animations with a natural-sounding speech. There are two solutions available:

• Sync AI animation to generate animation files in FBX or CSV for dedicated animation software.
• Sync AI video to generate realistic talking avatar videos.

Pros

• Simple, uncluttered dashboard.
• It’s pretty easy to generate an avatar with human-like facial movements.
• Good amount of settings to adjust your animations.

Cons

• The biggest con is the fact that you can’t test the tool freely.

Pricing

This is the only software in our list that doesn’t come with a free trial version. There are three paid editions to choose from:

• Basic: $15.99/month
• Standard: $23.99/month
• Enterprise: Custom

Bottom Line

Lip sync technology can aid us generate AI content that’s becoming more and more realistic. By analyzing speech patterns and matching them to the corresponding mouth movements, these AI-powered tools can generate lifelike animations for digital avatars, video dubbing or entertaining visual content.

This is a major leap forward, because it significantly improves efficiency in media production, it enhances the user experience and provides accessibility in education and communication. Of course, the technology is not perfect yet. There are still challenges, such as refining subtle facial expressions for example, but we are in an early phase. Advances will continue to be made, offering exciting possibilities for creative industries and beyond.