Official BytePlus partnerBytePlus, a ByteDance company
Kiryū 1.0
The AI video agent for organic TikTok, Reels and Shorts
Tell Kiryu what you're posting. It writes hooks built for the first three seconds, plans your week of short-form, makes the video, images and voice right in the chat, then watches the result and tells you what to fix.
- Made for TikTok, Reels and Shorts
- Hooks, scripts and shot lists
- Seedance 2.0 and 2.5 video
- Images, voice and Lip Sync
- Frame-by-frame video reviews
- Free: 15 messages and 1 video review a day
On this page
What an AI video agent does
Making a short video usually means a stack of apps: one to write the script, one for the visuals, one for the voice, one to cut it and one to check if it's any good. An AI video agent puts all of that in one conversation.
Kiryu is KreatorFlow's video agent. You talk to it like a creative partner. It asks about the product, the audience and the platform, suggests angles, writes the hooks and the script, and then sets up each piece in the studio: Seedance video, Seedream images, voiceovers, Lip Sync, captions and edits. Every action shows its price before it runs, and the results come back into the chat so you can keep going.
When the video is done, send it back. Kiryu watches it frame by frame and tells you where viewers will drop off and what to change. We call this way of working vibe editing: you describe the result, Kiryu does the steps.
How it works
- 1
Tell it the idea
Say what you're making in plain words: a product launch, a week of TikToks for your coffee shop, an ad for a skincare serum. Add a photo, a product shot or a video if you have one.
- 2
Get the plan and the words
Kiryu asks what it needs, then writes the hooks, the script, the shot list and the captions. Change anything by replying, the way you would with a creative partner.
- 3
Make it in the same chat
When you're happy, Kiryu sets up the video, image, voiceover or edit as a card with the price on it. One click runs it in the studio and the result comes back into the conversation.
Everything in one chat
Writes what gets watched
Hooks, scripts, ad angles, captions and posting plans, written for TikTok, Reels and Shorts.
Makes the video
Seedance 2.0 and 2.5 clips, Seedream images, Lip Sync presenters and Kitsune motion transfer, set up from the chat.
Adds the voice and sound
Voiceovers, music and sound effects, plus transcripts, speech translation and voice cloning.
Edits for you
Cuts, trims, joins, crops to 9:16, speed changes and captions, by asking.
Reviews your videos
Upload a video and get timestamped notes on the hook, pacing, captions, audio and call to action.
Remembers you
Your brand, audience and past work carry over between chats.
Things people ask Kiryu
- Write 5 hooks for my skincare reel
- Plan a week of TikToks for my coffee shop
- Turn this product photo into a 10-second ad
- Here's my video. Why did it flop?
- Make a voiceover for this script and add captions
- Cut this down to 15 seconds and make it 9:16
Made for organic TikTok, Reels and Shorts
Kiryu is built for the videos people find in their feed, not on a billboard. Everything it writes and makes starts from how short-form is actually watched: a thumb ready to scroll, sound often off, and about three seconds to earn the rest.
- Hooks written for the first three seconds, with the on-screen text and first shot
- Formats that work on short-form right now: skits, before and after, storytime, UGC, series
- Vertical 9:16, captions that sit clear of the app's buttons, and the right length per platform
- Posting plans for a week or a month, with a reason for every post
- Reviews that check where people stop watching and whether your call to action lands
Free to start, more on a plan
Free account
$0
- 15 messages a day
- 1 video review a day
- Hooks, scripts, ad angles and content plans
- Image, voiceover, sound and quick edits from the chat, on your own credits
Any paid plan
From $15
- A daily Kiryu allowance included, larger on higher plans
- Keeps going on your credits after the allowance
- More video reviews and every studio tool from the chat
- Pro mode on every plan, Max mode on Pro, Max, Business
Making something from the chat costs the same credits as making it in the studio, and Kiryu shows the price before it runs. Daily limits reset at midnight UTC. The free tier needs a verified email.
AI video agent questions
What is an AI video agent?
An AI video agent is an assistant that does more than answer questions: it plans a video with you and then runs the tools that make it. Kiryu writes the hooks, script and shot list, then sets up the video, images, voice and edits on KreatorFlow, and can watch the finished video and tell you what to fix.
What can Kiryu make?
From the chat it can set up Seedance 2.0 and 2.5 video, Seedream images and image edits, Lip Sync talking videos, Voiceovers, music and sound effects, Kitsune motion transfer, Face Swap, Kartoonz cartoons, Cuts, trims, joins, crops, speed, captions and 9:16, Transcripts, speech translation and voice cloning. Each result lands in the same conversation and in your library.
Is Kiryu free?
Yes, with a verified free account you get 15 messages and 1 video review a day. Anything you make from the chat uses your credits, the same as in the studio. Paid plans add a larger daily allowance, Pro and Max modes, more video reviews and every studio tool.
Which video models does it use?
Kiryu makes video with ByteDance's Seedance 2.0 and Seedance 2.5 and images with Seedream, the same models as the KreatorFlow studio. KreatorFlow is an official partner of BytePlus, a ByteDance company.
Does Kiryu remember my brand?
Yes. You can tell Kiryu about your brand, audience and tone once, and it uses that in every chat. It also remembers what you've worked on together, so you don't start from zero each time.
How is this different from a normal AI video generator?
A video generator turns one prompt into one clip. Kiryu starts earlier and finishes later: it works out the idea and the hook, writes the script, makes every piece (video, images, voice, captions), joins and crops it, then reviews the cut. It's the whole workflow in one place.
Can it review a video I already made?
Yes. Upload any video and Kiryu watches it frame by frame, listens to the audio and gives you timestamped notes and the three fixes that matter most. See AI video feedback for how it works. Free accounts get 1 review a day.
Why is it called Kiryu?
Kiryu is Japanese 気流, the current of creative energy: the flow behind KreatorFlow.
Tell Kiryu the idea. Get the video.
Start free with 15 messages and 1 video review a day, or use it on any paid plan.