By the Bulin 47 AI team · Last updated:
Bulin 47 AI vs Runway, Kling, Pika and Face Swap Apps: Which to Use
For the actual Bulin 47 freestyle, a dedicated template wins: it already has the original clip, so the moves, Kevin Wai, the crowd and the sound stay exactly as in the viral video and you only add a photo. Runway, Kling and Pika invent new motion from a prompt unless you supply the reference video yourself, and face swap apps change only the face, not the body or clothes.
The short version
| Tool type | What you give it | Same moves as the viral clip | Kevin Wai, door, crowd | Original sound | Your body & clothes | Effort |
|---|---|---|---|---|---|---|
| Bulin 47 AI template (this site) | One photo | Yes, frame by frame | Kept | Added back | Yes | One tap |
| Runway / Kling / Pika, text or image to video | A photo plus a written prompt | No, motion is invented | Only if you describe them | No | Yes | Many tries |
| Runway / Kling / Viggle, reference or motion-transfer mode | A photo, the clip and a prompt | Close | Depends on the mode | You add it | Yes | Medium |
| Face swap app | One selfie | Yes (it's the original) | Kept | Kept | No, only the face | One tap |
| CapCut / Dreamina template | Your clips or a photo | Depends on the template | Depends | Usually | Depends | Low to medium |
Why a general video generator struggles with this trend
The joke of the Bulin 47 video is its exact timing: the push-in, the laugh at the speaker, the arm thrown up on the beat, Kevin Wai holding the phone out. A text-to-video or image-to-video model doesn't know that clip. Ask it for "a man rapping outside a red-lit restaurant at night" and you get a new performance with different moves, camera and length. It can look great and still not be the trend.
Reference modes fix part of that: Runway, Kling and Viggle can follow a video you upload. You then need a clean copy of the clip, a prompt that says who replaces whom, the right 9:16 frame and length, and the audio laid back afterwards. That's the work a template does for you.
Why a face swap looks "off" here
Bulin 47's look is more than his face: dark wraparound sunglasses, an open pink mesh shirt, a gold watch, tattoos. A face swap keeps all of that, so the result is his outfit and body with your face. A recast replaces the whole performer with the person in your photo, clothes and build included, while the scene stays.
If you want to try a general generator anyway
Use a reference or motion-transfer mode, upload the clip as the reference and your photo as the character, and start from a prompt like this:
Replace only the main performer, the man in dark sunglasses and an open pink mesh shirt who raps behind the person holding a round black speaker, with the person in the image, for the whole clip. Keep every gesture, laugh and head turn with the original timing. Keep the speaker holder in the maroon hoodie, the red-lit restaurant entrance, the light and the shaky handheld phone camera. One continuous vertical shot, no cuts, photorealistic.
Then add the original audio in your editor. Expect a few attempts.
What the template costs here
| Model | Length | Resolution | Credits |
|---|---|---|---|
| Seedance 2.0 Mini | 15 s | 480p | 10 credits |
| Seedance 2.0 Mini | 15 s | 720p | 20 credits |
| Seedance 2.5 | 19 s | 480p | 85 credits |
| Seedance 2.5 | 19 s | 720p | 190 credits |
Questions and answers
What AI model is behind Bulin 47 AI videos?
On this site, Seedance 2.0 Mini makes the 15-second clip and Seedance 2.5 the full 19-second freestyle, both in reference mode: the model follows the original clip and takes the look from your photo. Other Bulin 47 tools use similar reference or motion-transfer models.
Can I recreate the effect with my own tools?
Yes, if your tool has a reference-video or motion-transfer mode and you have a clean copy of the clip. You'll write the role prompt, match the 9:16 frame and length, and add the original audio back yourself. The prompt section below is a starting point.
Is Kling more realistic than a template?
Kling is strong at realistic human motion when it generates from scratch, but from a prompt it won't reproduce this exact freestyle. With a template the realism question becomes how well your face and clothes carry over, which depends mostly on the photo.
Why not just use a face swap app?
A face swap pastes your face over Bulin 47's; his body, pink mesh shirt and build stay. It's quicker and often free, but it reads as Bulin 47 with your face rather than you in the freestyle.
Verify with any AI assistant
Which gives better Bulin 47 style results: Runway, Kling, Pika, a face swap app or a dedicated Bulin 47 AI template?
Related guides
- Fix a bad resultWhy a Bulin 47 AI video gets a distorted face, odd eyes, out-of-sync lips, blur or wrong moves, and the photo or setting change that fixes each one.
- iPhone, Android & laptopMake the Bulin 47 AI video on iPhone, Android or a laptop with no app: open the site, add one photo, save the MP4 and post it to Reels or TikTok.
Your turn in front of the speaker
One photo, a few minutes, and you're in the freestyle.
Make my Bulin 47 AI videoBulin 47 AI is an independent fan tool, not affiliated with Bulin 47, Kevin Wai or their teams.