The AI Video Agent That Plans First. Then Builds the Whole Video.
Describe the video in one sentence. Synthesys Video Agent writes the script, lays every scene out on a storyboard, casts the presenter, voices it, scores it and cuts it. You read the plan, change what you want and approve. Nothing renders until you say so. Fifteen seconds or thirty minutes, in 9:16, 16:9 or 1:1.
- Storyboard before render
- Cost shown on the button
- 10 seconds to 30 minutes
- 400+ voices, 140+ languages
- Full commercial rights
- Analysing the brief
- Loading the crew: scriptwriter, character lead, voice, editor
- Writing the storyboard: 4 scenes, 15 seconds
- Drawing the shot cards
Trusted by global enterprise teams
What Is an AI Video Agent?
An AI video agent is software that takes a written brief and carries it through the whole production: script, scene plan, casting, voice, footage, captions, music and the final cut. An AI video generator turns one prompt into one clip. A video agent holds the context of the entire project, makes the calls a director and an editor would make, and hands back a finished video. This is agentic video creation: the system runs the pipeline, you run the system.
Synthesys Video Agent is that idea built on six years of Synthesys infrastructure: the presenters, voices, lip sync and rendering pipeline the company has shipped since 2020. It runs inside the Synthesys app and works in two modes. In confirm mode it stops at every scene and waits for your approval. In auto-run mode it carries the whole production through to the finished cut with no pauses.
Under the hood the AI video agent routes each scene to the frontier model best suited for it. One engine for cinematic footage, another for storyboard frames, others for voice, lip sync and music. You never pick a model and you never buy a second subscription to keep up with the next release.
From Brief to Final Cut in Three Steps.
The AI video agent takes the production. You take the decisions. Nothing to install, no timeline to learn, no separate tools to stitch together.
Describe it
One sentence is enough: the product, the presenter, the mood, the length, the aspect ratio. Add a store link, product photos, a reference video or a competitor's ad if you have them. Type @ to attach anything already in your library.
Approve the plan
The storyboard comes back in moments. Every scene is named and timed, the script is written, the cast is proposed. Rewrite a line, replace a shot, choose another voice. The credit cost sits on the approve button, so you know the price before the render starts.
Get the finished video
Synthesys Video Agent generates the footage, voices it, adds captions, scores it and cuts it. Export 9:16, 16:9 or 1:1. Then keep talking to it: trim, reorder, re-voice, translate or restyle the finished video by chat.
Nine roles, one agent
Every stage a production crew would staff, run by Synthesys Video Agent in sequence. The role it leaves to you is the director’s chair.
- 01Plan
- 02Script
- 03Cast
- 04Voice
- 05Footage
- 06Consistency
- 07Captions
- 08Score
- 09Assemble
The engines behind the agent
Six kinds of model, each picked per scene by the AI video agent. You never choose one, and new releases arrive without a new subscription.
- Video
Cinematic footage models, chosen per scene, for anything from 15 seconds to half an hour.
- Image
Storyboards and product shots. Every frame drawn before it renders.
- Voice
400+ voices in 140+ languages, or a clone of yours.
- Lip sync
Your twin or any presenter, mouth movement matched to every word.
- Music
Scored to the cut and ducked under the voice, not pulled from stock.
- Restyle
32 looks, claymation to manga ink, applied without a reshoot.
Approve the Plan. Not the Render.
Most AI video tools make you pay to find out what they understood. Synthesys Video Agent shows you the storyboard, the script and the price first. When something is off, you correct it on paper, not in the render.
Every scene, named and timed
The AI video agent puts the entire video on one board: a title and a running time for each scene, its voiceover line, and a shot list down to lens, camera move and lighting. You read it the way a director reads a shot list.
The cost is on the button
Each render shows its credit price before you approve it. Change the plan while it is still a plan. A failed generation costs nothing, and you never pay to redo what the machine misunderstood.
Confirm, or auto-run
Set Ask to confirm and the agent waits for your greenlight at every scene. Set it to auto-run and it goes from plan to finished cut with no stops. Switch per project, any time.
It asks when it matters
Auto-run is not blind. If a choice would alter the video, Synthesys Video Agent pauses and shows you the alternatives: a replacement shot, a different look, another line. Take one, write your own, or leave it to the agent.
More Tools Gave You More Tabs.
An Agent Gives You the Video.
You needed ten videos this month and got one, late. Here is what changes when a single AI video agent owns the production.
Tools and crews
- ✕An AI clip tool hands you eight seconds of footage. Now you are the editor.
- ✕The agency quotes four figures and three weeks for one video.
- ✕Five subscriptions: script tool, voice tool, stock library, captioner, avatar app.
- ✕Pay, render, hope. Then pay again to fix what the model misread.
- ✕One version, one language, one aspect ratio. Every variant is a new project.
- ✕A finished video you cannot change without starting over.
Synthesys Video Agent
- +One brief in. A finished video out, with voice, captions and music.
- +Storyboard and script back in moments, ready for your notes.
- +One agent that routes every scene to the right model for the job.
- +The credit cost on the approve button before anything renders.
- +Say "make it Spanish" or "reframe to 16:9" and the agent does it.
- +Talk to the finished video: trim, reorder, re-voice, restyle.
Hand the Agent Whatever You Have.
Get a Finished Video.
A sentence is enough to start Synthesys Video Agent. Everything else you attach makes the video more yours. Combine any of them in a single brief. If what you need is missing from this list, describe it and the agent will plan it.
A sentence
"A one minute ad for my candle shop." That already counts as a full brief. The AI video agent fills in the rest and shows you its choices.
Your product
Product shots, a store URL or your landing page. Synthesys Video Agent pulls the real images, price and copy into the video.
A reference video
"Something in this spirit." Attach a clip and the agent borrows its rhythm, structure and mood.
A competitor's ad
Drop in the link. The agent studies how the ad is built and recreates it scene by scene with your product in it.
A presenter
Pick one from the character library, describe a custom one, or record a short clip and cast your own digital twin.
A style
Cinematic. Shot on a phone. Claymation. Whiteboard. Name the look and every scene follows it.
A length and a ratio
Ten seconds to thirty minutes. 9:16 for the feed, 16:9 for YouTube, 1:1 for the grid, or all three from one brief.
A skill
Type / and pick a playbook: Before & After, Comparison Test, Unboxing, a Beauty or Pets industry pack, or one you wrote.
A language
"And a version in German." Voice, captions and on-screen details localize together in the same run.
What the AI Video Agent Actually Does.
The storyboard is the headline. These are the parts that make one brief turn into a video you would put your name on, and the controls that keep you in the director’s chair while it happens.
🎬Watch the Crew Join, Step by Step
Behind the AI video agent sits a roster of specialists it calls in as the brief requires: someone to write, someone to cast, a voice, an editor, plus the image and video generators. You watch each one arrive in the chat and finish its part in plain view. Click into any step to see the exact prompt it ran.
🗺️The Whole Production as a Map
Flip to Flow view and the project turns into a diagram. Your product is the starting node; each scene branches off it carrying its shots, its lines and a status of planned, rendering or finished. Pull back for the shape of the whole piece, or push in and adjust a single beat while everything else stays put.
🔗Paste a Link. Get the Ad.
Drop in a product page, an App Store listing or any website URL. Synthesys Video Agent pulls what is already there, the product photos, the price, the copy, any demo footage, and turns it into a finished UGC ad, app promo or promo video in about a minute. Give it a competitor's ad link instead and it reconstructs that ad scene by scene with your product in the frame.
🧑🎤Their Face, a New Face, or Yours
Pick a presenter from the character library in ten seconds. Describe the look, age and vibe and let the agent build one nobody else has. Or film one short clip and let your digital twin present everything you make from then on. The presenter you choose stays consistent from the opening frame to the closing card. Pair them with one of 400+ voices or your own clone. It also lip-syncs clips you already own: give it existing footage and a new script or a new language, and the mouth follows every word.
📘Type / and Hand the Agent a Playbook
A skill is a set of rules the AI video agent follows to the letter. Ad formats like Before & After, Comparison Test, Unboxing and Keynote Launch. Industry playbooks covering categories like beauty, electronics and pet products. Craft skills such as Hook Doctor and the Director Camera Pack. Author your own inside the app, or drop in a SKILL.md file, and it triggers automatically whenever a brief matches.
🎨One Finished Take. Thirty-Two Looks.
Take a completed clip and re-render its surface as watercolour, claymation, manga ink, oil paint, neon signage, 8-bit pixel art, Y2K vaporwave or comic pop art. No reshoot and no new generation of the scene itself. The library holds 32 named looks so far. Timing, performance and voice carry over untouched.
🙋Auto-Run That Still Asks the Right Questions
Whenever a choice would change the outcome, Synthesys Video Agent pauses and lays out the alternatives, typically four ways to take a shot plus a blank line for your own. Choose one, write your own, or skip and let it judge. Each render also arrives with an approve card showing the prompt, which you can edit, plus the aspect ratio, model and resolution chosen for that job.
✂️Finished Is a Draft You Can Talk To
A finished render does not end the conversation. Reorder scenes by dragging them on the timeline, tighten the whole cut, replace one line, switch the music, drop a statistic onto the third scene or ask for a Spanish edition. Type the note in chat and the AI video agent makes the change. Captions come out timed to the voice, animated and in your brand colours. The score follows the edit and dips under every spoken word. The agent also suggests what to tweak next.
📺Type a Theme. Get a Full-Length Video.
Explainers, top-five lists, deep dives and tutorials, ten minutes or thirty. Tell Synthesys Video Agent the subject and it drafts the script, assembles the scenes and delivers a full-length video fronted by a presenter, carried by graphics, or a mix of both. Captions, voice and music included, one cast held from the first scene to the last.
Restyle without reshooting
- Claymation
- Comic Pop Art
- Watercolour
- Manga Ink
- Y2K Vaporwave
- 8-Bit Arcade
- Neon Sign
- Oil Painting
- + 24 more
Follow Your Competitors. Rebuild What Works.
The research library sits next to the AI video agent. Follow any brand and every new ad it runs lands in your feed, beside what is trending across your market. Save the ones worth studying, open the file on any of them, then hand the winner to Synthesys Video Agent to rebuild around your product.
📡Every Ad Your Market Is Running, in One Place
Four tabs. Following shows the brands you track. Trending shows what is gaining traction across your category. Discover surfaces ads outside your list. Saved holds the ones you want to come back to. Each card carries the ad’s variants, the platforms it runs on and its format, so you can judge it before you open it.
🗂️One Click Opens the Whole File
- +All of its variants, where it is running, the format, the call to action and the page it drives traffic to.
- +The ad copy, plus every other ad the same brand is running right now.
- +AI Analysis, in beta: how strong the hook is, how long viewers hold, its viral potential, an attention map, an emotion radar and the audience it targets.
- +A creative breakdown, second by second, that doubles as a rebuild plan.
🧬Clone the Ad. Or Just the Part That Works.
Hand the AI video agent an ad link or the video file and it reconstructs the ad with your product in place. Cloning from a link works on every plan; the research feed and AI Analysis come with Agency and up.
- Clone the whole adscene by scene, with your product in it
- Match the visual styletheir look, your subject
- Reuse the script structuretheir beats, your copy
- Replicate the hookthe opening that works, on your offer
- Make it in another languagevoice, captions and details
- Recreate a TikTok as yourselffrom one short selfie clip
Ten Videos a Week That Still Look Like One Brand.
Speed is easy to promise and hard to keep on-brand. These three systems inside Synthesys Video Agent hold the line while the volume goes up. Plan gating is on the pricing page.
- Logo
- Colours
- Fonts
- Voice
- Tagline
- Products
Read your website once. Every video knows your brand.
Paste your address and Synthesys Video Agent reads your logo, colours, fonts, tone and products. From then on each video ships in your brand, right down to the logo on the final frame. Want a different closing card or corner logo on a video that is already done? That swap is free, with nothing re-rendered and no credits used.
The same product, pixel for pixel, in every scene.
Turn anything that has to look identical every time into an Element: a product, a prop, a setting or a character, defined by a handful of reference photos. The AI video agent then holds that look from the opening scene to the last one, and from this project to the next. Uploads and renders collect in the Files library by project, one @ away from your next brief.
Every asset a project produced, in one place.
Open the Assets tab on any project and everything it produced is waiting: the presenter, the storyboard sheets, each rendered scene and the finished cut, downloadable one by one. No digging through exports. Any of it can be dropped into your next brief, so a scene that worked once keeps working.
From the Storyboard to the Feed, Without Leaving the App.
Exporting, renaming and uploading the same file three times is where a video pipeline quietly loses an hour. Synthesys Video Agent closes the loop: the finished video goes out to your social accounts from the screen you approved it on.
- 01
Connect once
Link your TikTok, Instagram and Facebook accounts a single time. They stay connected for every project after that.
- 02
Publish from the same screen
When the cut is approved, the publish panel opens where you made the video. Write one caption and it lands on all three networks.
- 03
Post now or schedule it
Send it straight out, or pick a day and time. Scheduled posts sit in a queue you can see, so a week of content can be lined up in one sitting.
- TTConnectedTikTok@lumencandles
- IGConnectedInstagram@lumencandles
- FBConnectedFacebookLumen Candles
Slower evenings start here. The new soy candle is out today.
- TikTokQueued
- InstagramQueued
- FacebookQueued
Write it once. It lands on all three.
Pick a Format for the Structure.
Or Skip It and Describe the Video.
Formats save you time; they never box you in. Choose one when you want the beats laid out for you. Write it freehand when you would rather not. A cooking walkthrough, an investor update or a teaser for your podcast all get planned from nothing by the same AI video agent.
Marketing and social
- Sales video and VSL1 to 10 min
- UGC ad15 to 60 sec
- TV commercial15 to 60 sec
- TikTok short15 to 60 sec
- Street interview30 to 90 sec
- Podcast clip30 sec to 5 min
- App promo30 to 60 sec
- Animation story30 sec to 3 min
- Faceless story30 sec to 3 min
- AI montage15 to 60 sec
Explainer and educational
- Explainer video1 to 10 min
- Whiteboard explainer1 to 10 min
- Presentation video2 to 30 min
- Vox-style explainer1 to 5 min
- Full YouTube videoup to 30 min
Typical lengths shown. Each format exports vertical, widescreen and square, and the linked pages above cover the individual formats Synthesys Video Agent produces in more depth.
Real Projects. Each One Started as a Sentence.
Finished videos made by Synthesys Video Agent in one account, in the two aspect ratios teams ship most. Press play, sound on. Nothing here was edited outside the AI video agent.
Give the Agent One Sentence. Get the Whole Video Back.
Write one sentence. Read the storyboard it hands back. Approve it when it is right. The credit cost is on the button, and briefing costs nothing.
Hand It to the AgentIf You Need Video and You’re Out of Time, This Is for You.
Synthesys Video Agent earns its place the moment video becomes a weekly obligation instead of an occasional project. These are the teams already running it.
Marketing teams and founders
Sales letters, ad variants and launch films every week, with no production line item. Test ten hooks before the meeting instead of arguing about one.
Ecommerce brands
One UGC ad per SKU, generated straight from the product listing. Real photos, real price, real copy. Ten angles before lunch, and a localized version for each market.
Agencies
Take on more accounts at better margins, and get client sign-off on a storyboard before a single render is paid for. Five clients, one seat, one AI video agent doing the production.
Creators and channel owners
Thirty-minute explainers, ranked lists and long deep dives, with you signing off on every scene. Pick the topic, set the cadence, write one line per video.
Coaches, courses and SaaS
Whiteboard lessons, feature demos, onboarding sequences and explainers whenever you need them. When the product changes, edit one scene instead of remaking the module.
Describe the video anyway.
Synthesys Video Agent plans from the brief, not from a template. If you can say what the video is for, it can board it.
Why Teams Pick the Synthesys AI Video Agent.
Over 1,000,000 videos rendered. 50,000+ users. Brands like Coca-Cola and Yahoo on the customer list. Synthesys did not bolt an agent onto a clip generator. It built an agentic video pipeline on top of a production stack it has run since 2020.
The result is an AI video agent that behaves like a crew: it plans, it shows its work, it asks when the choice matters, and it keeps going after the cut. One subscription, every format, full commercial rights.
Six years of infrastructure under the agent
Synthesys has shipped AI voices since 2020, avatars since 2021 and its own lip-sync video model since 2023. Synthesys Video Agent sits on top of that stack, so the presenters, voices and rendering are proven before the agent ever writes a script.
Plan first, pay second
With Synthesys Video Agent the storyboard, the script and the credit cost are on screen before a frame renders. Scripts, storyboards, voiceover, music and every chat message are free. Credits are only spent on the render you approved, and a failed one costs nothing.
Frontier models, one subscription
The AI video agent routes every scene to the engine best suited for it and picks up new models as they ship. You do not choose a model, compare providers or keep a second AI video subscription alive to stay current.
Long-form and short-form from the same brief
Most AI video tools cap out at a minute or two. Synthesys Video Agent covers everything from a 10 second ad to a 30 minute presentation, keeps one presenter consistent throughout, and exports vertical, widescreen or square.
Full commercial rights, every plan
Paid ads, broadcast, client deliverables, courses, any social platform. No royalties, no attribution, no usage windows. Plans start at $29 a month and every plan includes the full video agent.
What Teams Are Saying
"Their AI models are incredibly advanced — so realistic it's almost impossible to tell they're AI-generated. The quality has consistently improved."
Dr Yara Loua
Healthcare Professional · Verified Trustpilot Review
"I rely heavily on Synthesys to help me stay ahead with marketing across my three businesses. It handles everything I used to outsource."
Randy Cole
Business Owner · Verified Trustpilot Review
"My clients can't tell they're not real people — the lip-sync is spot on. It's become a core part of how we deliver client presentations."
Jexter N
Agency Professional · Verified Trustpilot Review
"The AI-powered features are game-changers — the auto-generated scripts and voiceovers save me so much time."
Michael Mubi
Marketing Manager · Verified Trustpilot Review
"I can clone myself and my voice, then easily create a lot of short clips without re-filming or redoing anything. Massive time saver."
Thomas
Content Creator · Verified Trustpilot Review
"Created a welcome video and 3 course videos in one sitting. The software made the whole process flawless — I'm hooked."
Bonnie Williams
Course Creator · Verified Trustpilot Review
"My avatar can easily translate my message into many other languages. It does a great job reaching audiences I couldn't before."
Joseph Wood
International Marketer · Verified Trustpilot Review
"The AI voice generator is great for creating videos at work. Their AI image and video editors make everything seem more professional and polished!"
Bruna Duarte
E-commerce Brand Owner · Verified Trustpilot Review
Have questions? We have answers.
Find everything you need to know about getting started, managing your account, and creating professional AI videos.
What is an AI video agent?
An AI video agent is software that takes a plain-language brief and delivers a finished video, not a single clip. Synthesys Video Agent reads the brief, writes the script, plans each scene on a storyboard, picks the presenter and voice, generates the footage, adds captions and music, and cuts the result. A standard AI video generator stops at one prompt and one clip. The agent owns the whole job and keeps context from the first sentence to the final export. That is agentic video creation in practice: the system runs the pipeline and you direct it.
How is Synthesys Video Agent different from an AI video generator?
The agent plans and directs. A generator renders. With a generator you write a prompt, get a few seconds of footage, and become the editor. With Synthesys Video Agent you describe the video once. It comes back with a named, timed storyboard and a script you can edit, then produces the complete video with voice, captions and music in 9:16, 16:9 or 1:1. It also routes each scene to the model best suited for it, so you never juggle separate AI subscriptions.
Do I have to approve the storyboard before anything renders?
Only if you want to. In confirm mode Synthesys Video Agent pauses at each scene with the credit cost on the button and waits for your go-ahead. In auto-run mode it takes the video all the way from plan to finished cut without pausing. You can switch modes per project. Either way the storyboard and script are on screen before the first frame renders, so you fix the plan instead of paying to fix the output.
How long can a video made by the agent be?
From about 10 seconds to 30 minutes, depending on the format. Short social ads sit at the low end. Presentation videos, whiteboard lessons and full YouTube explainers can run to the 30-minute limit with the same presenter held across every scene. Longer videos take longer to render, and rendering runs in the background while you keep working on something else.
What can I give the agent to start from?
A single sentence is enough. You can also attach product photos, a store or product page link, an App Store link, a reference video, a competitor's ad, a script, a presenter from the library or your own digital twin, a visual style, a target length and a skill. Type @ in the composer to attach anything from your library, or press the plus button. Any mix of these works in one brief.
Can the video agent use my face and voice?
Yes. Film one short clip and the AI video agent builds a digital twin that presents every video you make from then on, with your voice cloned from a short recording. You can also pick from more than 400 library voices filtered by language, gender and style, choose a presenter from the character library, or describe a custom presenter and let the agent build one. You must hold the rights to any face or voice you upload.
Which video formats does Synthesys Video Agent support?
Sales videos and VSLs, UGC ads, TV commercials, TikTok shorts, street interviews, podcasts, app promos, animation stories, faceless stories, AI montages, explainers, whiteboard explainers, presentation videos and full-length YouTube videos. Formats are a shortcut, not a limit. Ask for a cooking walkthrough, an investor update or a podcast teaser and the agent plans it from nothing.
Can I edit the video after the agent finishes it?
Yes, by chatting. Tell Synthesys Video Agent to move scenes around, shorten the cut, rewrite a line, switch the voice or music, place a statistic on one scene or reframe the whole thing for another platform. Say "make it German" and the voice, captions and on-screen details localize together. You can also restyle a finished clip into one of 32 looks, from claymation to manga ink, without regenerating the whole video.
How much does it cost to make a video with the agent?
Credits pay for the render, and the exact cost is shown on the approve button before you spend anything. Scripts, storyboards, voiceover, music and chatting with the agent are free. Plans start at $29 a month for 3,500 credits, and every plan includes the full video agent, every format and full commercial rights. A failed generation costs nothing.
Does the agent keep my brand consistent across videos?
Yes. Brand Kit reads your website once and pulls your logo, colours, fonts, tone and products, then applies them to every video you make after that. Elements let you save a product, prop, location or character with a few photos so it looks the same in scene one and scene ten, and across projects. Brand Kit is included from the Pro plan up.
Can I recreate a competitor's ad or build a video from a URL?
Yes. Give the AI video agent an ad link or the video file and it reconstructs the ad scene by scene with your product in place. Give it a product page, App Store link or website and it pulls the photos, price and copy from the page and turns them into a UGC ad, app promo or promo video in about a minute. URL to video is on every plan. The winning ads library and competitor tracking feed are included from the Agency plan up.
Can I use videos made by Synthesys Video Agent commercially?
Yes. Every plan includes full commercial rights with no attribution and no royalties. Use the output in paid ads, on broadcast, on client work, in courses and on any social platform. On the Agency plan and up you can also publish or schedule finished videos to TikTok, Instagram and Facebook from inside the app.
Who is Synthesys Video Agent for?
Marketing teams and founders who need ads and launch videos every week, ecommerce brands that want a UGC ad per SKU, agencies that need a client-approvable board before rendering, creators publishing long-form YouTube content, and coaches, course creators and SaaS teams producing lessons, demos and onboarding. Synthesys has produced over 1,000,000 videos for 50,000+ users since 2020.
Your Next Video Is One Sentence Away.
One sentence in. A storyboard back in moments. A finished video once you approve it. Synthesys Video Agent is included on every plan, from $29 a month, with full commercial rights.
Put the Agent to Work