Prime Video AI lip sync vs Sume: human voice on a talking image
Amazon uses AI and VFX to lip-sync shows to human-dubbed audio. Sume cannot re-sync existing footage, but Fabric can animate a still to a human recording.
Sume Avatar 1.0
Sume Avatar 1.0 by API: reusable avatars, talking video from a script, multi-scene and two-speaker videos, previews, B-roll, and Face Swap (Beta).
Start with: Introducing Sume Avatar 1.0
Synthesia Roleplay Sessions vs Sume scripted scenario clips
Synthesia launched Roleplay and Survey Sessions on Oct 1. Sume has no live roleplay, but can render the scenario prompt as a short avatar clip.
Synthesia Survey Sessions vs Sume: not interactive, but scripted
Synthesia's Survey Sessions avatar asks questions live and reports themes. Sume renders avatar question clips from a script, with no live conversation.
VEED Fabric Emotions audio tags vs Sume Fabric audio_url
VEED's Fabric Emotions adds inline tags like [excited] in the script. On Sume, Fabric takes a finished audio_url; emotion lives in the TTS step.
HeyGen 30-minute avatar video: what Sume does in one request
HeyGen says it can make a 30-minute talking video in one pass. One Sume avatar video request covers 4-60 seconds, so longer pieces are split into jobs.
HeyGen Edit Look: retouching an AI avatar, and the Sume route
HeyGen's Edit Look retouches an existing avatar in place. Sume's docs show no such edit, so the route is a new avatar from a retouched photo and a new handle.
Does a face-swapped video need a YouTube AI disclosure?
YouTube asks for disclosure when content makes a real person appear to say or do something they didn't. What that means for a Sume Beta face-swap output.
Shortest video an AI dub or face swap accepts: 5 s vs 4 s
Synthesia's dubbing page says a video must be at least 5 seconds. Sume's Beta face swap plans for about 4-15 seconds and avatar videos take 4-60. Side by side.
Face swap or avatar talking video: which Sume endpoint?
Use face swap when you already have a 4-15 second source video; use the avatar talking video when you have a script. Inputs, limits and what each returns.
Two-host AI video podcast: what Sume avatar videos can do
HeyGen's Video Podcast puts two AI hosts in one studio scene. A Sume avatar video resolves one avatar per final video, so a two-host show is two renders.
HeyGen Avatar V's 15-second recording vs a Sume photo avatar
HeyGen's Avatar V starts from a 15-second recording. Sume's avatar API starts from a prompt, traits or one public HTTPS image, with no recording step.
AI avatar 4K: can an avatar video be 1080p or 4K?
Sume renders AI avatar videos at 720p. For 1080p or 4K, upscale the finished clip up to ×4, 30 seconds of input per job. Steps, limits and costs.
Talking head video with graphics: layouts and overlays
Put a slide, product shot or logo on screen with a talking head: split the frame or lay the graphic over the presenter. How to do it with an API.
Does Higgsfield do AI UGC? Its UGC tools and API, explained
Yes: Higgsfield's app has Lipsync Studio and Click to Ad for UGC-style clips. Its API docs list video models, not a lip-sync or UGC ad endpoint.
Creatify vs Synthesia: ad avatars or training videos, compared
Creatify sells avatar video ads on credit plans with separate API plans; Synthesia sells presenter videos in 160+ languages with API from Creator.
HeyGen vs Kling: script avatars or image-plus-audio clips
HeyGen turns a script into an avatar video and voices it. Kling's Avatar API animates one image to your 2–300 s audio. Inputs and API prices compared.
HeyGen vs Higgsfield: avatar platform or multi-model studio
HeyGen is built around talking avatars and translation; Higgsfield is a multi-model video and image studio with a lip-sync app. Plans and API compared.
Synthesia vs Runway: presenter videos or generative video
Synthesia turns scripts into presenter videos in 160+ languages; Runway sells generative video plus API avatars from one image. Jobs and prices compared.
Can HeyGen use my avatar and voice? What its terms say
On Creator, Pro and Business plans you grant HeyGen an irrevocable license to your content, including to train its models. Ask to opt out by email.
Does AI keep your photos and face? What avatar tools store
If an AI tool makes a reusable avatar, it keeps your face on purpose. How long HeyGen, Synthesia and Sume keep it, and how to get it deleted.
Does HeyGen do captions? What its video API returns
Yes. HeyGen's v3 video API returns an SRT subtitle file when you set caption, and burns captions into the video when you also set a style.
AI talking cartoon character: make one from a drawing
Make a cartoon character talk: draw or generate one still, add speech audio, and send both to VEED Fabric 1.0 on Sume. Steps, limits, and what is not promised.
HeyGen avatar consent API: digital twin vs photo avatar
HeyGen asks for consent only for digital twins, via POST /v3/avatars/{group_id}/consent. The three levels, the 24-hour link, and what photo avatars skip.
HeyGen batch videos API: 100 videos in one call
HeyGen's POST /v3/videos/batches queues up to 100 avatar, image or cinematic videos and returns one batch_id. Fields, polling, and Sume's per-job pattern.
HeyGen lipsync API: speed vs precision mode
HeyGen's POST /v3/lipsyncs re-syncs an existing video to new audio in speed or precision mode. Body fields, statuses, and how Sume's still-plus-audio differs.
HeyGen photo avatar API: create one from a photo
Create a HeyGen avatar from one still with POST /v3/avatars, poll the look until it is ready, then use avatar_id in a video. Fields, errors, and Sume's route.
HeyGen transparent background video: the WebM switch
HeyGen returns a transparent avatar video only when output_format is webm and the avatar was trained with matting. The rules, the errors, and Sume's limits.
Instagram AI-generated profile label: who has to add it
Instagram renamed the AI creator label to AI-generated profile and may limit reach for unlabeled AI people. Who needs it, how to add it, how to appeal.
VEED Fabric speed_tier fast: what it changes on Sume
On Sume's VEED Fabric 1.0 route, speed_tier fast picks the fast queue. Same fields, same per-second rate, same 300 s limit. What changes and what does not.
YouTube likeness detection: setup, limits, AI avatars
YouTube likeness detection finds videos that alter or fake your face. Who can enroll, what it scans, review actions, and what it means for avatars.
Real-time AI avatar vs video avatar API: the difference
A real-time AI avatar talks live in a session; a video avatar API renders a finished file from a script. Which vendors sell which, and where Sume fits.
How long can HeyGen videos be? Limits by plan and API
HeyGen videos can run 1 minute on Free, 30 on Creator and Pro, 60 on Business, with no max on Enterprise; an API avatar request caps at 30 minutes.
HeyGen vs Synthesia: API, pricing, avatars and limits
HeyGen and Synthesia both make scripted avatar videos and sell a live avatar. They differ in API billing, video length, and how custom avatars are made.
What is an AI digital twin? Twins vs photo and stock avatars
An AI digital twin is a custom avatar of one real person that speaks new scripts in their likeness. HeyGen trains it on footage; Synthesia starts from a photo.
How to create an avatar from a video: two ways
To create an avatar from a video, train a digital twin on the footage, or take one clear frame and make a photo avatar from it. What each route keeps.
HeyGen vs Creatify: avatar API, ad tools and pricing
HeyGen's API centers on avatars, voice and translation, paid with pay-as-you-go credits. Creatify's centers on video ads, sold as monthly API plans.
Synthesia alternatives with an API: access, pricing, limits
Argil, Creatify, HeyGen and Sume each document an avatar video API. They differ in how API access is sold, the price unit and the length limits.
Audio to avatar AI: make an avatar speak your recording
Audio to avatar AI lip-syncs a face to a voice track you supply. How it works, which APIs take a recording directly, and the route on Sume today.
Kling API avatar: one image plus audio, 2 to 300 seconds
Kling's API has an Avatar endpoint: one reference image plus a 2–300 second audio track becomes a talking video, billed per second. Inputs and Sume options.
Arcads vs HeyGen: AI actors for ads or an avatar platform
Arcads is an ad tool built on 1,000+ AI actors, paid in plan credits. HeyGen is an avatar and translation platform with a pay-as-you-go API.
How long should a microlearning video be? Length and AI
No fixed standard: one objective per video, and research on course videos favors 6 minutes or less. How to size lessons and make them with an AI avatar.
Runway Characters API: avatars, live sessions and videos
Runway Characters builds avatars from one image, a voice and a personality, for live sessions or rendered videos. Endpoints, limits and pricing.
HeyGen Avatar 4 vs 5: Avatar IV and Avatar V compared
HeyGen Avatar IV is the default engine for every avatar type; Avatar V is opt-in for eligible Digital Twins only. Parameters, eligibility and cost.
Synthesia personal avatar vs studio avatar: what differs
A Synthesia personal avatar is self-serve, from one photo, ready in minutes; a studio avatar is a green-screen shoot sold as a paid add-on.
Argil alternatives for AI clone videos, compared
Argil alternatives for AI clone videos: Creatify, HeyGen, Synthesia and Sume, compared on what you record for the clone and how its voice is made.
HeyGen video translation API: modes, languages, cost
HeyGen's video translation API is POST /v3/video-translations: a video URL plus target languages, in Speed or Precision mode, billed per minute.
HeyGen vs Argil: avatar APIs, avatar creation and pricing
HeyGen and Argil both turn a script into an avatar video by API. HeyGen bills pay-as-you-go dollars per minute; Argil bills plan credits per minute.
What is an AI avatar? What it does and what it can't
An AI avatar is a digital presenter, a face and a voice, that speaks the script you write in a video. What it does, how it's made, and its limits.
How do AI avatars work? Face, voice, and video, step by step
An AI avatar video is assembled from parts: a face, a voice to match it, and motion that makes the face say your script. How each step works on Sume.
What is AI UGC? Meaning, how it's made, and how it differs
AI UGC is UGC-style video made with AI: a generated presenter speaks your script to camera, the way a creator would on a phone. How it differs.
What is a talking head video? Meaning and how to make one
A talking head video shows one person speaking to the camera, framed from about the chest up. What it means, what it's for, and how AI makes one.
Talking head vs B-roll: what's the difference?
A talking head is the shot of someone speaking to camera; B-roll is the footage you cut to while their voice keeps playing. How the two fit together.
Difference between lip sync and dubbing: which do you need?
Dubbing replaces the speech in a video; lip sync matches a mouth to the audio. Lip-sync dubbing does both. What each means, and which one you need.
AI avatar vs AI agent: what's the difference?
An AI avatar is a face and a voice that present content; an AI agent is software that plans steps and uses tools. How they differ, and how they meet.
UGC video prompt for AI avatars: what goes in each field
A UGC video prompt for an AI avatar is three inputs, not one: the creator's words, a scene prompt for the setting and light, and a product image.
AI avatar prompts: how to describe a talking presenter
An AI avatar prompt for video describes one person: age, look, hair, clothing, and expression. What to write, what Sume adds, and what it can't set.
AI avatar video editing: what you can change after rendering
AI avatar video editing: trims, captions, music, B-roll, and joins work on the finished MP4; new words, a new voice, or a new look need a re-render.
How to make a photo talk with AI: voice, then lip sync
Make a photo talk in two steps: turn your text into speech, then lip sync the photo to that audio. On Sume: TTS 1.0, then VEED Fabric 1.0.
How to clone yourself with AI: your face and your voice
To clone yourself with AI, pair a photo of your face with a clone of your voice. On Sume: clone the voice, speak with TTS 1.0, lip sync with Fabric.
AI avatar language: which languages can an avatar speak?
Sume's Avatar 1.0 talking video speaks English only today. For Spanish, Hindi, or Korean, make the speech with TTS 1.0, then lip sync it.
Lip sync AI translate: how to dub an avatar video
Sume can't re-sync lips in existing footage. To dub an avatar video, translate the script, speak it with TTS 1.0, and lip sync the face with Fabric.
AI avatar with emotions: set tone and speaking speed
Avatar 1.0 talking videos have no emotion or speed setting. Set emotion, speed, and volume on TTS 1.0 speech, then lip sync the avatar with Fabric.
AI avatar with hand gestures: make an avatar move or dance
Avatar 1.0 videos have no gesture setting. To pick hand gestures or dance moves, drive the avatar with a clip of up to 30 seconds via motion control.
Script for an AI avatar: how many words fit in 60 seconds
An AI avatar script is the words the avatar speaks. Sume's estimator today counts 2.8 words per second, so 60 seconds holds roughly 165 words.
UGC ad script for AI avatar videos: hook, demo, CTA
A UGC ad script is a hook, the product in use, and a call to action. For a Sume avatar, write each beat as a scene in a video of up to 60 seconds.
Talking head video background music: a bed under the voice
Keep background music well under the voice. A Sume avatar video preview can carry a soundtrack at volume 0.05 to 0.4; Timeline adds fades and ducking.
Talking head video format: aspect ratio, size, and file
A talking head video's format follows where it plays: vertical, 16:9, square, or 4:5. Sume avatar videos come in five ratios as MP4 at 720p.
Face swap a video with a photo: create an avatar first
Sume's Face Swap (Beta) takes a ready avatar, not a photo. Turn the photo into an avatar first, then swap it onto a 4–15 second public video.
Real estate agent AI video: one avatar for every listing
Real estate agents can make AI videos without filming: create an avatar from a photo once, then script each video with a listing photo as the scene.
API for AI avatar talking-head videos from a script: how to choose
How to choose an API for AI avatar talking-head videos from a script: HeyGen, Synthesia, Argil, Creatify and Sume compared on price unit, engines and limits.
How to make an AI avatar video longer than 60 seconds
One Sume avatar video job covers an estimated 4-60 seconds. Split the script, render each part, and join the parts with Timeline 1.0 for a longer video.
Add B-roll to a talking-head avatar video with the Sume API
Keep an Avatar 1.0 clip's voice as one Timeline spine, cut away to B-roll slots, and cut back with source_in equal to start so the lips stay on the words.
AI avatar conversation video API: two speakers in one dialogue
A Sume avatar video job resolves one avatar, so a two-person dialogue is one job per turn, cut together in speaking order with Timeline 1.0.
AI avatar video with your product and background via API
Add product_image and a scene prompt or photo to a Sume Avatar 1.0 talking video, then check the first frame in a preview before the full render.
Stock AI avatars API: find a ready-made avatar for a talking video
Search Sume's avatar catalog with POST /v1/avatar-catalog/search, pick a ready public avatar, and pass its handle to a talking video without creating one.
How to create a reusable AI avatar with the Sume Avatar 1.0 API
Send POST /v1/avatar-1.0/generate with an avatar_handle and a prompt, profile, or image input. Poll the job, then reuse the handle for avatar videos.
Talking avatar video API: generate an avatar video from a script
POST /v1/avatar-1.0/talking-video turns a ready avatar and a 4-60 second script into a talking video. Options, captions, polling, and per-second rates.
Multi-scene avatar video API: build one video from ordered scenes
Send ordered video_inputs instead of one script to compose spoken and silent scenes into one 4-60 second avatar video. Scene fields, rules, and limits.
Avatar video previews: approve the first frame before rendering
Create an avatar video preview to get first-frame stills, regenerate them if needed, then call generate-video on the preview id to render the final video.
Avatar Face Swap API (Beta): apply an avatar face to a video
Avatar Face Swap 1.0 is a Beta Sume endpoint that applies a ready avatar's face to a short public source video. Required fields, limits, and polling.
Introducing Sume Avatar 1.0
Sume Avatar 1.0 is a multi-agent orchestration system as a single avatar model.