1
Sync sync-3
sync. labs · Re-dubbing real or generated footage to new audio, up to 4K
$$
sync-3, released in April 2026, rewrites the mouth on existing footage while keeping the original performance, and copes with side profiles, low light and several speakers at up to 4K 60fps. It is the go-to pick for real footage in recent buyer's guides from Each Labs and Versely (both October 2026). It is available as an API, a Premiere plugin and a ComfyUI node, with cheaper lipsync-2 models for drafts.
- Cheapest way in
- Free plan to try; paid plans from $5/month plus usage
- Cost per output
- Per second at 25fps: sync-3 $0.107-0.133, lipsync-2-pro $0.067-0.083, lipsync-2 $0.04-0.05
- Input
- Video plus new audio; a still image plus audio on sync-3
- Max length
- 1 minute (Hobbyist) to 30 minutes (Scale) per video
- API
- Yes
- Open weights
- No
- Max resolution
- 4K at 60fps (sync-3)
- Dubbing
- Built-in dubbing into 29 languages
Good at
- Keeps the actor's own pauses, breaths and expression
- Handles profiles, partial faces, low light and multiple speakers
- Native 4K output on sync-3
- API, Premiere plugin, ComfyUI node and built-in dubbing into 29 languages
Watch out for
- Re-syncs existing video; it does not invent a new performance
- Monthly fee is charged on top of per-second usage
- sync-3 costs about twice as much per second as lipsync-2-pro
Benchmarks Each Labs: best AI lip sync models 2026 (editorial picks, 22 Oct 2026): Pick for real footage that needs new words (Sync 3) · Versely: best lipsync models (editorial picks, updated 29 Oct 2026): Default pick for re-syncing existing footage (Lipsync 2.0; Pro for close-ups)
Prices sync.so, checked 1 November 2026
Sync sync-3 website
2
HeyGen Avatar V
HeyGen · A lifelike digital twin of you presenting in 175+ languages
$$
Avatar V, HeyGen's 2026 flagship, builds a digital twin from a 15-second recording and separates performance from appearance, so face, hands, posture and energy can be directed in plain English. Curious Refuge ranked it the best lip sync tool for AI avatars in July 2026 for body language and expression, while noting the older Avatar IV gives a sharper image. The same app covers photo avatars, video translation with lip sync and an API.
- Cheapest way in
- Free plan (3 watermarked videos a month); Creator from $29/month
- Cost per output
- Avatar V API about $0.05 per second ($3 per minute), prepaid
- Input
- 15-second clip for Avatar V; a photo works with Avatar IV
- Max length
- 30 minutes (Creator, Pro); 60 minutes (Business)
- Languages
- 175+ languages and dialects
- API
- Yes
- Open weights
- No
- Framing
- Upper body with gestures
Good at
- Digital twin from about 15 seconds of footage
- Directable motion: face, hands, posture, gaze and energy
- 175+ languages and dialects with lip sync
- Long videos: up to 30 minutes on paid plans, 60 on Business
Watch out for
- Image can look softer than Avatar IV
- Credit use on web plans is hard to predict
- Presenter-style framing rather than full cinematic scenes
Benchmarks Curious Refuge: best AI lip sync tools for AI avatars (editorial ranking, July 2026): #1 of 5 (HeyGen Avatar IV #3, InfiniteTalk #4) · Versely: best lipsync models (editorial picks, updated 29 Oct 2026): Pick for a presenter without a shoot
Prices heygen.com, checked 1 November 2026
HeyGen Avatar V website Work made with it on AI LIVE
3
Seedance 2.5 lip sync
ByteDance · Generated characters who talk or sing in the same pass as the shot
$$$$
Seedance 2.5 is #1 on OpenArt's lip sync board (1,123, 63 points ahead of Seedance 2.0), which scores talking, singing, multi-character and multilingual sync in generated video. Voice, performance and mouth movement are generated together in clips of up to 30 seconds, in more than ten languages, so close-ups need no separate lip sync pass. It is a video generator rather than a dubbing tool, and the most expensive per second here.
- Cheapest way in
- Free starter generations on Dreamina; Basic from $15/month
- Cost per output
- BytePlus API: about $0.10/s at 480p, $0.23/s at 720p, $0.57/s at 1080p
- Input
- Text prompt plus up to 30 images, 10 videos, 10 audio clips
- Max length
- 30s per generation, extendable
- Languages
- Dialogue in 10+ languages
- Open weights
- No
- Max resolution
- 1080p
- Framing
- Full scenes, full body, multiple characters
Good at
- Top of the only public lip sync arena
- Dialogue, singing and multi-character scenes in one generation
- Up to 10 audio references to guide voice and pacing per character
- Full scenes and camera moves, not just a talking head
Watch out for
- Audio references guide the voice rather than keep your exact recording
- Most expensive per second at 1080p
- 30-second takes; longer talks need extending or stitching
Benchmarks OpenArt Arena Lip Sync: #1, 1,123 (page dated 24 Sep 2026)
Prices ofox.ai, checked 1 November 2026
Seedance 2.5 lip sync website Work made with it on AI LIVE
4
OmniHuman 2.0
ByteDance · Long talking or singing videos from one photo and an audio track
$$
Launched on 15 October 2026, OmniHuman 2.0 turns one image and up to five minutes of audio into a single continuous take, with gestures and expression driven by the tone and meaning of the audio. It handles several people, animals, anime and 3D characters, and text prompts can steer movement and camera. Each Labs picks it for a photo plus a long voice track, and at $0.07 per second it is one of the cheapest long-form options, though output is 720p.
- Cheapest way in
- Pay-as-you-go API; OmniHuman 1.5 free to try in Dreamina
- Cost per output
- $0.07 per second on BytePlus ($4.20 per minute); about $0.105/s via fal
- Input
- One image plus 4-300s of speech, music or dialogue
- Max length
- 5 minutes in one take
- API
- Yes
- Open weights
- No
- Max resolution
- 720p
- Framing
- Full body, multi-person, animals, anime and 3D
Good at
- Five-minute single takes with no stitching
- Multi-person scenes and non-human characters
- Prompts for movement, camera and added objects
- Low per-second price
Watch out for
- 720p output
- Very new, with little independent testing so far
- API-first: Dreamina's consumer avatar tool still runs OmniHuman 1.5
Benchmarks Each Labs: best AI lip sync models 2026 (editorial picks, 22 Oct 2026): Pick for one photo plus a long voice track
Prices byteplus.com, checked 1 November 2026
OmniHuman 2.0 website
5
Kling AI Avatar 2.0
Kuaishou · Quick talking clips from a photo, including cartoons and mascots
$$
Kling AI Avatar 2.0 animates a portrait from up to five minutes of audio and works on real people, animals, cartoons and stylised characters, with prompts for emotion, gesture and camera. Kling's separate Lip Sync tool re-voices an existing character clip, and Kling 4.0 now generates dialogue with matching mouths natively. Each Labs and Versely both recommend it for short lines and illustrated characters.
- Cheapest way in
- Free Basic plan; Standard from $6.99 for the first month
- Cost per output
- Avatar 2.0 via fal: $0.056 per second (Standard), $0.115 per second (Pro)
- Input
- Portrait image plus 2-300s audio, optional prompt
- Max length
- About 5 minutes (Avatar 2.0)
- API
- Yes
- Open weights
- No
- Max resolution
- 720p
- Framing
- Portrait to half body; real, animal and cartoon
Good at
- Strong on stylised, cartoon and mascot characters
- Standard tier for cheap iteration, Pro for finals
- Lip Sync tool for existing clips, with upload or text-to-speech
- Widely available through fal, Hedra and other hosts
Watch out for
- 720p output
- Pro tier costs about twice Standard per second
- Quality drops on long takes, so short scripts work best
Benchmarks Each Labs: best AI lip sync models 2026 (editorial picks, 22 Oct 2026): Pick for one photo plus a short line (Standard to iterate, Pro for finals) · Versely: best lipsync models (editorial picks, updated 29 Oct 2026): Pick for illustrated characters or mascots
Prices fal.ai, checked 1 November 2026
Kling AI Avatar 2.0 website
6
Mirage Avatar X
Mirage · Creator-style UGC clips and AI twins from 10 seconds of footage
$$$
Avatar X, released in July 2026, generates voice, expression and body motion in one pass rather than lip syncing a still, and builds an AI twin from about ten seconds of footage. It powers every avatar in the Captions app and is also an API that takes a photo or video reference plus up to three minutes of audio. It is newer and less independently tested than HeyGen or Sync.
- Cheapest way in
- Captions Max from $24.99/month (iOS); API pay-as-you-go
- Cost per output
- $0.15 per second on Mirage's API, billed in 6-second blocks; $0.30/s via fal
- Input
- Script, or photo or video reference plus 3-180s audio
- Max length
- 180 seconds per API generation
- API
- Yes
- Open weights
- No
- Formats
- 9:16 and 16:9
- Framing
- Face, voice and body motion together
Good at
- Voice, face and body motion generated together
- AI twin from about 10 seconds of footage
- Built into a phone-first editing app aimed at creators
- Vertical and horizontal formats
Watch out for
- API clips capped at 3 minutes
- Only 9:16 and 16:9 formats
- Higher per-second price than OmniHuman or Hedra
Prices captions.ai, checked 1 November 2026
Mirage Avatar X website
7
Hedra Character-3
Hedra · Cheap, long talking-head videos of any character from a still
$
Hedra's avatar models turn a portrait and an audio track into up to ten minutes of uncut talking video at up to 1080p, and are known for expressive results on stylised characters. At 2.5 cents a second at 540p they are among the cheapest hosted options. Hedra's platform also hosts Kling Avatar, OmniHuman 1.5 and VEED Fabric side by side, which makes it a handy place to compare.
- Cheapest way in
- Free tier in Hedra; API is prepaid pay-as-you-go
- Cost per output
- $0.025/s at 540p, $0.05/s at 720p, $0.0625/s at 1080p
- Input
- Portrait image plus audio, optional text prompt
- Max length
- 10 minutes
- API
- Yes
- Open weights
- No
- Max resolution
- 1080p
- Framing
- Talking head
Good at
- Up to 10 minutes from one portrait
- Low per-second price
- Text prompts to steer expression and gesture
- One platform for several avatar models
Watch out for
- Talking-head framing rather than full-body scenes
- Character-3 dates from March 2025
- Clean, quiet audio needed for the best sync
Prices hedra.com, checked 1 November 2026
Hedra Character-3 website
8
Runway Act-Two
Runway · Transferring an actor's face and body performance to a character
$
Act-Two is performance capture rather than audio-driven lip sync: you film yourself and it maps your face, timing, hands and body onto a character image or video, with no suits or markers. It suits filmmakers who want a specific acted delivery, and Curious Refuge features it as its performance-transfer workflow. It dates from July 2025 and has no announced successor, so realism trails the newest models.
- Cheapest way in
- Paid Runway plans from $15/month (Standard)
- Cost per output
- $0.05 per second via the Runway API (5 credits per second, 3-second minimum)
- Input
- Driving performance video plus character image or video
- API
- Yes
- Open weights
- No
- Framing
- Face, hands and full body
Good at
- Your own acting drives the character
- Face, hands and body gestures, not just lips
- Multi-character dialogue workflow
- Cheap through the Runway API
Watch out for
- You have to perform every line on camera
- Older model than most of this list
- Needs a paid Runway plan
Prices docs.dev.runwayml.com, checked 1 November 2026
Runway Act-Two website Work made with it on AI LIVE
9
LongCat-Video-Avatar 1.5
Meituan · Free, open-weight talking video you can run and adapt yourself
$
Released in May 2026 under the MIT licence, it animates a photo or continues a video from one or two audio tracks, handles multi-person dialogue and holds up over multi-minute clips. Tight Studio's August 2026 test of open avatar models found it the most expressive, and its makers report it beating InfiniteTalk on multi-person scenes. It needs a 48-80 GB GPU and tops out at 720p.
- Cheapest way in
- Free open weights (MIT licence)
- Cost per output
- Self-hosted on your own or rented GPU; no per-second fee
- Input
- Photo or video plus one or two audio tracks and a prompt
- Max length
- Multi-minute clips
- Open weights
- Yes (MIT)
- Max resolution
- 720p
- Framing
- Upper and full body, multi-person
- Hardware
- 48-80 GB GPU class
Good at
- MIT-licensed weights and code
- Multi-person dialogue from separate audio tracks
- Long, stable clips; works on anime and animals
- 8-step distilled inference
Watch out for
- Needs a 48-80 GB class GPU
- 720p maximum
- Setup and tuning are on you
Benchmarks Tight Studio: open-source talking avatar models tested (August 2026): Most expressive of six open models run · LongCat-Video-Avatar 1.5 user study (developer's own): Multi-person score 2.730 vs InfiniteTalk 2.339
Prices github.com, checked 1 November 2026
LongCat-Video-Avatar 1.5 website
10
Synthesia Express-3
Synthesia · Polished business presenter videos and translated training content
$$
Express-3, now on every Synthesia plan, adapts tone and gesture to the script and improves lip sync over Express-2. The platform is built for training and corporate video, with 140+ languages, dubbing with lip sync, SCORM export and an API, plus a free plan with 10 minutes a month. For creative work it is less flexible than HeyGen, with presenter-style avatars and studio avatars as a paid add-on.
- Cheapest way in
- Free plan (10 min/month); Starter from $19/month or $14/month yearly
- Cost per output
- Credit-based: about 100 credits per finished minute; dubbing 80 credits/min with lip sync
- Input
- Script with stock or personal avatars; video for dubbing
- Languages
- 140+ languages
- API
- Yes
- Open weights
- No
- Max resolution
- Full HD (1080p)
- Framing
- Presenter, upper-body gestures
Good at
- Free plan with 10 minutes a month
- 140+ languages; dubbing with lip sync
- Tone and gestures follow the script
- Training features: SCORM, quizzes, branching
Watch out for
- Presenter look, not cinematic
- Studio avatars cost $1,000/year extra
- Lip sync on dubs uses double credits
Prices synthesia.io, checked 1 November 2026
Synthesia Express-3 website
