--- title: "AI lip sync generator from your script or voice." url: "https://riffads.com/features/ai-lip-sync" description: "AI lip sync generator for ads: an AI actor lip-syncs your own recording or a script in 74 voice languages, priced before it runs." updated: "2026-09-28" source: "RiffAds" --- # AI lip sync generator from your script or voice. RiffAds is an AI lip sync generator for ads. Pick an AI actor, add a script and a voice or upload your own recording, and get a video where the actor's lips match the audio. - [Open the studio](https://app.riffads.com/sign-up?redirect=%2Fpricing) - [Connect your agent](https://riffads.com/connect) ## What is an AI lip sync generator? An AI lip sync generator turns a still face and an audio track into video of that face speaking, with the lips and jaw moving to each sound. In RiffAds the face is an AI actor, and the audio is a script read in one of 74 voice languages or a recording you upload. The price shows before anything runs. ### How it works 1. **Bring the audio**: Upload a recording you already have, or type a script and pick a voice in any of 74 languages. 2. **Choose the actor**: Use an AI actor from the library, or your own actor made from a description or a photo. 3. **Match model to length**: Short clips suit MiniMax H3 Max Lip Sync and longer reads suit OmniHuman 1.5. Seedance 2.5 Actor makes its own voice, so it takes no upload. 4. **See the cost first**: The credit cost shows before you press Generate, and the lip-synced video comes back as a file to download. ### Best for - Talking head ads for TikTok and Reels - Ads in more than one language - Your own voice on an AI actor - App install campaigns - AI agents that build ads ### RiffAds in numbers - **74**: voice languages a script can be read in, with the actor's lips matched to each one. - **840**: credits for 30 seconds of OmniHuman 1.5 lip sync on a recording you upload, with no voice to pay for. 1 credit is $0.01. ### The numbers behind it - **EUR 15M**: or 3% of worldwide annual turnover is the top EU AI Act fine for breaking the Article 50 transparency rules, deepfake labels included. Source: [EU AI Act, Article 99(4), Official Journal](https://publications.europa.eu/resource/celex/32024R1689), July 2024. - **June 2026**: is when New York said its law is in effect: whoever produces an ad must identify if it includes AI-generated synthetic performers. Source: [New York Governor's press release](https://www.governor.ny.gov/news/governor-hochul-announces-first-nation-law-requiring-disclosure-when-advertisements-include-ai), June 9, 2026. ## Questions ### How does AI lip sync work? A lip sync model is trained on video of people talking, so it learns which mouth shapes go with which sounds. Given a face and an audio track, it draws new frames where the lips, jaw and expression follow the voice. In RiffAds the face is an AI actor, and the video keeps the shape of the actor's image, such as 9:16, 16:9 or 1:1. ### Can AI lip sync an actor to my own audio file? Yes. Upload an MP3, WAV, OGG or WEBM recording and OmniHuman 1.5 or MiniMax H3 Max Lip Sync animates the actor to it. No script or voice is needed, and no text to speech is charged. The actor can come from the library or be your own, made from a description or a photo. If the photo shows a real person, you need their written consent first. ### Which AI lip sync model should I use for an ad? Pick by length. MiniMax H3 Max Lip Sync takes 5 to under 14.8 seconds of audio. OmniHuman 1.5 takes under 60 seconds and can follow a direction. Seedance 2.5 Actor speaks for itself for 4 to 30 seconds, with no voice step, but costs more per second and its voice changes on every render. Audio past a model's limit is refused before any video credits are held, never cut short. ### What languages can the AI actor lip sync? The actor can lip-sync any of 74 voice languages, including English, Spanish, French, German, Hindi, Arabic, Japanese and Mandarin. Pick a voice in the language you need, or upload a recording in that language. RiffAds does not translate or dub a finished video: each language is a new video made from its own script or recording. ### How much does AI lip sync cost? AI lip sync on RiffAds is paid in credits, and 1 credit is $0.01. A 30 second OmniHuman 1.5 video with a script voice is about 848 credits. The studio shows the price before each render. Plans start at $49 a month. Growth has a 3 day trial for $1 with 500 credits, then bills $99 a month unless you cancel. Credits never expire, and RiffAds adds no visible watermark. ### Do AI lip sync ads need an AI label on TikTok or Meta? On TikTok, yes: fully AI-generated video or audio needs the AIGC label or your own clear disclaimer, or the ad is rejected or restricted. On Meta, social issue, election and political ads must disclose a realistic AI person, and since June 1, 2026 Meta adds an 'AI info' label to ads it detects as made with third-party AI tools. RiffAds adds no content credentials of its own, so label ads yourself and never present the actor as a real customer. ### Can my AI agent make lip sync videos for me? Yes. API, MCP, Agent Skills and CLI come with every plan and use the same wallet as the studio. An agent picks an actor, adds a voice or a recording, renders the video and states a spending cap on each call. By default it may spend 600 credits a job and 2,000 a day. A 30 second OmniHuman 1.5 video costs more than that job default, so an owner or admin may need to raise it. ## About RiffAds RiffAds makes realistic UGC video ads with AI actors, lip-synced to your script, in the studio or from your AI agent through API, MCP, Agent Skills and CLI. It never posts to a social account: every result is a download link to the finished file. RiffAds is priced in credits. 1 credit is $0.01 and credits never expire. Plans start at $49 a month for 4,500 credits. A 30 second talking actor ad is about 848 credits. The studio, the REST API and the MCP server spend the same balance at the same prices, so there is no separate API price. - [RiffAds home](https://riffads.com/index.md): models, workflows, features, plans and the full FAQ - [Pricing](https://riffads.com/pricing.md): every plan and the per-model credit rate card - [Connect your agent](https://riffads.com/connect.md): the MCP server, the REST API and the CLI ## Related pages - [Talking AI avatar](https://riffads.com/features/talking-avatar): AI talking head video generator: turn a photo or an AI actor into a talking avatar that speaks your script, priced before it runs. - [AI text to speech](https://riffads.com/features/text-to-speech): Text to speech video maker: turn an ad script into an AI voiceover in 74 languages, then lip-sync it onto an AI actor or lay it over B-roll. - [AI UGC actors](https://riffads.com/features/ai-actors): AI spokesperson videos with realistic AI UGC actors that say your script with lip sync, from the library or your own, priced before each ad runs. - [Video ad API](https://riffads.com/video-ad-api): The RiffAds AI video generation API makes lip-synced UGC ads with AI actors from your code. Priced first, spend caps, webhooks, same credits as the studio. - [All features](https://riffads.com/features): The UGC creator tools inside RiffAds, one page each: AI actors, voices, lip sync, B-roll and scripts.