Halloween sale · up to 40% off your first month + bonus credits, claimable daily

Claim it
KREATORFLOW
Log inSign up

Official BytePlus partnerBytePlus, a ByteDance company

Kiryū for TikTok

AI TikTok video analyzer

Upload a TikTok and Kiryu watches it frame by frame, listens to the sound and tells you, with timestamps, what's working and what's losing viewers: the hook, retention, captions, sound and call to action. Then it gives you the three fixes that would help most.

  • Upload the file, posted or draft
  • Frame by frame, with the audio
  • Checked against TikTok safe zones
  • Top 3 fixes and a new opening
  • Official BytePlus partner
  • 1 free video review a day
Analyze a TikTok freeHow the review works

Last updated

On this page
  1. What an AI TikTok analyzer actually tells you
  2. How to analyze a TikTok with Kiryu
  3. What the analyzer checks
  4. How the checks apply to TikTok
  5. TikTok details worth checking yourself
  6. What you get back
  7. TikTok analyzer questions

What an AI TikTok analyzer actually tells you

An AI TikTok video analyzer looks at the video itself and explains why people would keep watching or swipe. Kiryu samples the frames (most densely in the first seconds, where TikTok viewers decide), transcribes the speech, reads every caption word for word and notes where the cuts and silences fall. Its review cites that timeline, so a note reads like "00:01.5: the caption sits under the like button" rather than "improve your captions".

It doesn't see your analytics, so it pairs well with them. TikTok tells you when people left (the retention graph in the post's analytics) and Kiryu tells you what was on screen at that moment.

How to analyze a TikTok with Kiryu

  1. 1

    Upload the video file

    Drop the TikTok into a Kiryu chat, or pick it from your KreatorFlow library. Use the original export if you have it: a TikTok saved from the app carries the TikTok watermark, which can turn up in the notes as on-screen text.

  2. 2

    Say it's for TikTok and what it should do

    One line is enough, for example "TikTok, trying to get comments" or "TikTok, retention drops at 0:04, why?". The platform tells Kiryu which safe zones and length to check against.

  3. 3

    Read the notes, then fix it

    You get a note for each check with a timestamp, the three fixes that matter most, and a rewritten opening. Ask Kiryu to cut the dead spots, re-caption or add a hook title and it sets that up in the same chat.

What the analyzer checks

The hook

The first three seconds: what a viewer sees, reads and hears, and whether they would stop scrolling.

Retention and pacing

Shot lengths, dead spots and the moments attention is likely to drop, segment by segment.

Clarity of the idea

Whether it is obvious what the video is and why someone should keep watching.

Captions and on-screen text

The wording, quoted back to you, plus timing, placement, legibility and safe zones.

Audio

Voice against music, music fit, sound design and silences.

Visual quality

Framing, lighting and visible artefacts.

Call to action

Whether there is one, when it lands and whether it is clear.

Platform fit

Aspect ratio, safe zones and length for TikTok, Reels or Shorts.

How the checks apply to TikTok

The same review rubric, with what it most often catches on TikTok.

CheckWhat Kiryu looks atWhat it often catches on TikTok
The hookThe first frame, the first line of text and the first words, and whether anything moves or changes before the thumb does.Nothing changes in the first second, or the video opens on a greeting or a logo.
Retention and pacingShot lengths, pauses and segments where nothing new happens.A long take with no new information, which shows up as a dip in TikTok's retention graph at the same second.
Captions and on-screen textThe exact wording, how long each line stays up, and where it sits.Text in the bottom strip or the right edge, where TikTok's caption, username and buttons cover it.
AudioVoice against music, silences and sound effects.A trending sound so loud that the spoken point gets lost, or a silent gap at the start.
Call to actionWhether there is one, when it lands and if it's clear.A follow or comment prompt that only arrives after most people have already left.
Platform fitRatio, safe zones and length.Black bars from a 16:9 clip, or a video that runs long for how much it has to say.

TikTok details worth checking yourself

  • Read the retention graph first. In TikTok's analytics for the post, find the second where the line drops hardest, then tell Kiryu that timestamp. A steep drop in the first two seconds is a hook problem. A slow slide all the way through is usually pacing or an unclear point.
  • Keep text in the middle of the frame. On TikTok the right edge holds the like, comment and share buttons, and the bottom holds your username and caption. Kiryu flags text that lands there.
  • Sound carries more weight on TikTok. Most people watch with the sound on, so a muddy voiceover or a song that buries the point costs more here than on feeds that start muted. Captions still matter for anyone watching silently.
  • Say the topic early. Many people search TikTok the way they search the web. Naming the topic in the first line and on screen helps both the viewer and search.
  • Check the traffic source. If most views came from your followers and few from the For You feed, the video may be fine and simply hasn't been tested widely yet. Our guide to why a TikTok flops goes through the causes that aren't in the video.

What you get back

  • A note on each of the eight checks, with timestamps
  • The three fixes that would help most, in order
  • A rewritten opening: on-screen text, first line and first shot
  • The timeline of what Kiryu saw, to check any note yourself
  • An offer to make the edit, such as cutting dead spots or re-captioning

Need a stronger opening first? Try the free TikTok hook generator, or check just the first three seconds with the video hook analyzer.

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.

TikTok analyzer questions

Can AI analyze my TikTok video?

Yes. Upload the video to Kiryu and it watches it frame by frame, closest in the opening seconds, transcribes what's said and builds a timeline of every shot and caption. The review is written against that timeline, so every note has a timestamp you can check.

Can I paste a TikTok link instead of uploading?

No. Kiryu reviews video files, so upload the TikTok from your camera roll, drafts or editor export. It works the same on a draft you haven't posted yet.

Does the analyzer see my views or the For You algorithm?

No. It only sees the video. It can't read your TikTok analytics, your follower count or why TikTok showed the video to some people and not others. Use TikTok's own analytics for the numbers, and Kiryu for what in the video caused them.

Will it tell me if my TikTok will go viral?

No, and nothing honest can. What it does is point out the things that commonly lose viewers, such as a slow first second, captions under the buttons or a point that arrives too late, with the moment each one happens.

Is the TikTok analyzer free?

A verified free account gets 1 free video review a day, together with 15 chat messages. Paid plans include more reviews in their daily Kiryu allowance.

Which language is the analysis in?

The language you write your message in. Quoted captions and speech stay exactly as they are in the video, so a Spanish TikTok reviewed in English still quotes the Spanish text.

See what your TikTok looks like to a stranger

Free accounts get 1 free video review a day. Paid plans get more.

Analyze a TikTok freeAI video agent

Keep exploring