Best AI Lip Sync Tools in 2026

Buy Sync when the picture and the new audio already exist and you want a bill you can multiply by the length of the clip. A cheap avatar seat still builds a new person, which is a different purchase from redrawing the mouth on a file you shot.

The per-second rate decides the vendor once the footage is real, because a minute pool can hide the next clip inside a seat you will not finish.

An AI lip sync tool redraws a speaker's mouth so it matches new audio, a translated voice, or a driving performance.

On-screen subtitles leave the mouth alone, and a voice generator never touches the picture, so this list is for the mouth itself.

A job that only replaces the soundtrack belongs with dubbing, which prices the voice.

Toolradar data: the directory lists 11,260 tools across 344 categories (toolradar.com/best, read 17 October 2026).

Its Video AI shelf evaluates 17 tools, updated 15 October 2026. Lip sync is not its own shelf, so a translation credit and a per-second API never sit on one comparison card.

How those directory counts are kept is on our AI tools statistics page.

How we ranked starts with seven products that still sell a mouth match, and prices were checked in October 2026 on each vendor's pricing page or official docs.

Order follows whether you can start without a sales call, and whether the unit is a second, a credit, or a minute you can multiply. This ranking does not score the mouth, and it is not the free-limit comparison on our free lip sync tools page. The criteria for that order are explained on how we rate.

A lip sync tool changes mouth movement in a video so it follows a different sound. Dubbing teams use it after a translated voice exists, and creators use it to lay a voiceover on a face they already filmed.

Avatar products start from a script and a generated person, so the mouth arrives with the new video.

That split is why this list is separate from the AI dubbing tools guide. Dubbing prices a new language and a new voice, while lip sync prices the mouth on footage you already have.

Use the dubbing guide when the voice is the bill, and stay here when the mouth is.

Generated clips that were never a resync belong on the AI video generators list, and stock presenters belong on avatar generators.

The invoice is the unit you can multiply before you subscribe.

Sync, Kling, HeyGen's API, and Runway's developer portal sell seconds or credits you can turn into a one-minute cost. D-ID sells a minute pool that expires, while Captions and Akool sell a credit balance. Akool's API sheet lists a LipSync cost with no dollar on the row, and a second language spends the allowance again.

AIpresso calculation: one 60-second clip, ignoring the monthly seat, is $3 of usage on Sync Hobbyist or Creator, $2.85 on Growth, and $2.40 on Scale. Kling's lip-sync API is $0.84 for that minute, twelve 5-second blocks, plus a $0.007 face-recognition call.

HeyGen's Speed lip sync API is $1.50 for the same minute, and Runway Act-Two is 300 credits at the developer credit price. These figures are arithmetic from the vendor rates, not a minute price the vendors print.

The seat changes the story when the unit sits inside a pool you may not finish.

Creator's 600 credits cover 100 minutes of Speed, which is $0.29 a minute if every credit goes to that engine. Precision at 10 credits a minute cuts the same pool to 60 minutes.

D-ID's monthly Lite pool is $0.59 a minute if you use it, and the yearly Lite bill of $56 is 120 minutes across the year.

A weekly video empties those small pools and barely dents Sync's meter, so a one-off clip and a weekly show should not buy the same shape of plan.

Two traps show up on the second invoice, and both are easy to miss on the sticker.

HeyGen's app credits and API credits are different meters: the app charges per minute for Speed, and the enterprise sheet charges per second. Captions names Lipdub on Max and on the plan formerly called Scale, without saying how many credits one Lipdub spends, so a 500-credit pool is not a clip count.

The AIpresso daily flags when those meters move, and the wider stack starts at AI tools for business.

The minute costs above leave the seat out on purpose, which is the right comparison for a meter. Add the seat when the month has one clip, because entry Sync then bills usage plus the seat. Growth's usage on that minute is $2.85, after a 5 percent discount on the second, and Scale's usage is $2.40 after a 20 percent discount.

A watermark-free export starts on Creator, at the entry per-second rate plus a higher flat fee.

HeyGen's app minutes and API minutes are separate bills, so do not add them into one total.

The help article's Speed examples are 100 minutes on Creator, 166 on the 1,000-credit Pro tier, and 250 on Business.

On the API, Speed at 0.05 credits a second comes to $1.50 a minute at the $0.50 credit. Precision at 0.1 credits a second is $3 a minute, the cost of a hard angle.

Yearly Creator is $24 a month for the same pool, or $0.24 a minute of Speed if that engine spends the pool. The Pro slider runs to 100,000 credits at $4,300, which is a volume bill.

Both D-ID toggles are real prices, and the annual one discounts a year you already plan to stay.

Annual Pro is $16 a month, $191 for the year, on the commercial-license card. Monthly Advanced works out to $1.96 a minute if you use the pool, and annual Advanced is $108 a month, $1,293 for the year.

Translate clips stop at 5 minutes until Enterprise, which is a quote, and minutes round up to 15 seconds while unused minutes expire.

Kling's API is the low unit, and it only promises the row it prints. Twelve 5-second blocks are $0.84, and one face check makes that minute $0.847.

The yearly membership renews at the discounted card and pays for generation, while studio lip sync stays on the older models. The membership rates of $1.00, $0.81, and $0.76 per 100 credits are not the price of an inspiration credit.

Act-Two needs a driving video, so it is a different product from a Sync minute even when the usage looks close.

The 15-credit minimum is $0.15, and a 60-second call is 300 credits. App plans are another wallet, Standard, Pro, and Max, monthly or yearly, plus 125 credits granted once. Standard and Pro do not roll credits, and the app table never lists Act-Two.

Captions and Akool will not give you a minute price until someone measures a real clip.

Max is the Lipdub seat and Frontier steps up from there, while the credit burn for one clip stays unpublished. Android Lite at $4.99 is an editing plan, so that seat will not resync a mouth.

Akool prints a dollar per studio credit, and Pro Max is the first card with API access.

The LipSync row is 10 credits per 10 seconds on every column, with no dollar beside it.

Prices were read on 17 October 2026 on Sync pricing, HeyGen pricing, HeyGen's translation guide, HeyGen's enterprise API rates, Kling's video API rates, and Kling membership.

The same check covers D-ID studio pricing, Runway pricing, Runway developer pricing, Captions pricing, Captions plans, Akool pricing, and Akool API pricing.