synchronicity-labs/sync

Add or replace dialogue in AI-generated video with sync. labs (sync.so). Takes a clip from Veo, Kling, Sora, Runway, Hailuo, Luma, Seedance, Wan or any other video generator, with the user's audio or a line that sync. voices, and lip-syncs the character so they actually speak. Also plans the source clip so it lip-syncs well, and handles scenes with several shots or two characters talking. Use when the user wants an AI character, avatar, UGC-style ad actor or generated presenter to talk, add a voice to an AI video, or make a talking AI video from a prompt. Not for real footage that already has a voiceover to match (lipsync), still images (talking-photo), or translating a video (translate-and-dub).

Lip-sync many videos at once with sync. labs (sync.so), from a CSV, spreadsheet, folder or list. Pairs each video or avatar with its own audio or script, quotes the whole run once, starts the rows together within the plan's concurrency limit, resumes safely without paying twice, and collects every output. Use for bulk or batch lipsync of supplied audio or scripts, personalized video at scale (one video per lead, customer or recipient name), ad and creative variants, many voiceovers onto one presenter, or any "do this for each row" lipsync job. Not for one video (lipsync), translating videos into other languages (translate-and-dub for one video, localize-campaign for several).

Change or remove a few spoken words in a single-speaker video with sync. labs (sync.so), keeping the speaker's own voice and re-syncing the lips, with no reshoot. Use for fixing a misspoken word, a wrong name, number, price or date, a mispronunciation, a typo in a spoken line, or cutting a filler word or phrase, including one version per recipient's name from a single recording. Not for replacing a whole script (lipsync with a new script), translation (translate-and-dub), or switching to a different voice.

Lip-sync one existing video of a real person to new speech with sync. labs (sync.so), so their mouth matches a new voiceover, re-recorded take, song, or a typed script that sync. voices. Accepts local files, URLs, sync. assets and YouTube, TikTok, Instagram or Facebook links. Use whenever the user wants to lipsync, lip sync or sync lips, match mouth movement to audio, "make him say…", replace the audio in a talking-head clip, or sync a clip to a song, even if they don't say "lipsync". Not for AI-generated characters or clips from Veo, Kling, Sora and similar tools (ai-video-to-talking), still pictures (talking-photo), translation (translate-and-dub), changing a few words in the original voice (edit-dialogue), or many videos at once (batch-lipsync).

Localize a whole video campaign into several languages and markets with sync. labs (sync.so). Plans the video × language matrix, maps markets to languages, pilots one video so names and terms are right before spending on the rest, dubs and lip-syncs every version, and delivers consistently named files plus a review sheet per market. Use for several source videos across languages or markets, such as "make these ads in Spanish, German and Japanese", launching a campaign or a course in new markets, international or multi-market rollouts. Not for one video into a few languages (translate-and-dub), new speech in the same language (lipsync, batch-lipsync), or subtitles only.

Connect sync. labs (sync.so) to this agent and get a first lip-synced video. Use when the user explicitly asks to install, set up, connect or get started with sync. labs, when sync. tools are missing or signed out, or for questions about their sync. account, plan or remaining credits. Media requests go to their workflow skill, which links to the same connection steps.

Build sync. labs (sync.so) lipsync, dubbing and talking-image generation into an app, backend, script or pipeline with the sync. REST API or the official Python (syncsdk) and TypeScript (@sync.so/sdk) SDKs. Covers API keys, uploads, creating generations with idempotency keys, webhooks with signature checks, polling, models, cost estimates, error handling and concurrency limits. Use whenever code calls or should call the sync. API, for example "add lipsync to my Next.js app", "write a Python script that dubs videos with sync.", "handle sync. webhooks", "why does my sync. request return 429", or reviewing an existing sync. integration. Not for making one video in this chat (lipsync, talking-photo, translate-and-dub).

Make a still image talk with sync. labs (sync.so). Turns a photo, portrait, headshot, or an illustrated or AI-generated character with a human-like face into a lip-synced video from a typed script (sync. voices it) or the user's own audio. Use for "make this photo talk", "make this picture say…", talking avatars, talking headshots, animating a portrait or character with speech, or image-to-video with dialogue, including when the user has no picture yet and wants one made first. Not for moving video footage (lipsync or ai-video-to-talking), translation (translate-and-dub) or changing words in an existing video (edit-dialogue).

Translate one source video's speech into another language with sync. labs (sync.so) and re-sync the speaker's lips to the dubbed audio, from a local file, URL, or YouTube, TikTok, Instagram or Facebook link, into one or several languages. Use for "dub this video into Spanish", "translate my YouTube video to Japanese", AI dubbing, video translation, or a multilingual version of one video. Not for subtitles or captions only, translating a text document, lip-syncing audio the user already has (lipsync), or a whole campaign of several videos across markets (localize-campaign).

Diagnose and recover sync. labs (sync.so) work that failed, stalled, was rejected or errored, then resume it safely without paying twice. Covers sign-in and missing tools, rejected inputs, plan, credit and concurrency limits, stuck or slow jobs, lost responses after a timeout, dubbing provider errors and poor lipsync quality, and can report the problem to the sync. team. Use for "my lipsync failed", "why was this rejected", "it's been processing forever", "I got a 429 or 402", "the sync tools disappeared", or any sync. error message. Not for first-time setup (setup) or writing integration code (sync-api).