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A smiling woman in a sunlit home gym flexes one arm and curls her other hand on the bicep
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How to make the Bicep Heart AI trend video

How to make the Bicep Heart trend video with AI: flex, then curl your hand on the bicep to make a heart. Seedance 2.5 prompts, your own face with consent, and credit costs.

KreatorFlow5 min read

Short answer

The Bicep Heart trend is a short, one-take clip: you smile at the camera, flex one arm, then curl your other hand against the bicep so hand and arm form a heart. To make it with AI, open the video studio on Seedance 2.5, describe the move in order (flex first, then the curved hand on the bicep), keep the camera fixed, set 9:16 and generate about 8 seconds. That is 38 credits for 8 seconds at 720p. Add the trending sound in TikTok when you post.

Updated:

Made with this guide

A new clip generated from this guide's prompt, unedited.

Seedance 2.51080p8s9:16

Prompt

Vertical phone video, one continuous take, fixed camera, medium shot from the waist up in a bright home gym with morning window light. A cheerful young woman with curly dark hair in a sage green sports top stands facing the camera with her arms relaxed. She raises her right arm and flexes it, fist up beside her head, so the bicep bulges. Then she lifts her left hand across her body and bends her left fingers and thumb into a curved C shape, resting it on top of her right bicep, so the curved C hand and the curve of the flexed arm together form one clear heart outline. She holds this pose, grins at the camera and laughs. Natural skin texture, realistic phone-camera look, no cuts, no camera movement. Audio: soft room tone and a short laugh, no music.

How to make the Bicep Heart clip

  1. 1

    Open the video studio on Seedance 2.5

    Set 9:16 for TikTok, Reels and Shorts and pick about 8 seconds: long enough for the flex, the heart and a laugh.

  2. 2

    Describe the move in order

    Write it as a sequence: arms relaxed, then flex one arm with the fist up, then bend the other hand into a curved C shape and rest it on top of the bicep. Saying "the curved hand and the curve of the arm form one heart outline" helps the model get the shape.

  3. 3

    Keep it one take

    Add "one continuous take, fixed camera, no cuts, no camera movement". The trend is a simple phone clip, so a cinematic camera move gives it away.

  4. 4

    Use your own face (optional)

    Save a clear photo of yourself as a Character and put its @handle in the prompt instead of describing a person. Only use your own face or someone who agreed to it.

  5. 5

    Generate, then add the sound

    A 8-second clip at 720p is 38 credits. The price is on the Generate button before anything is charged, and failed generations give the credits back. Add the trending sound inside TikTok, Instagram or YouTube when you post: the app licenses it there. Don't put copyrighted music into the clip yourself.

Bicep Heart prompts

Paste one into the video studio on Seedance 2.5 with generated audio on.

  • Home gym (the clip on this page)

    Vertical phone video, one continuous take, fixed camera, medium shot from the waist up in a bright home gym with morning window light. A cheerful young woman with curly dark hair in a sage green sports top stands facing the camera with her arms relaxed. She raises her right arm and flexes it, fist up beside her head, so the bicep bulges. Then she lifts her left hand across her body and bends her left fingers and thumb into a curved C shape, resting it on top of her right bicep, so the curved C hand and the curve of the flexed arm together form one clear heart outline. She holds this pose, grins at the camera and laughs. Natural skin texture, realistic phone-camera look, no cuts, no camera movement. Audio: soft room tone and a short laugh, no music.

  • With your own face (your @handle)

    Vertical phone video, one continuous take, fixed camera, medium shot from the waist up in a living room with soft daylight. @me smiles at the camera, flexes the right arm with the fist up beside the head, then bends the left hand into a curved C shape and rests it on top of the right bicep so hand and arm form one clear heart outline. Holds the pose and laughs. Realistic phone-camera look, no cuts, no camera movement. Audio: room tone and a short laugh, no music.

  • Cartoon version

    Vertical 3D animated clip, glossy Pixar-like look. A small, round, very proud cartoon potato with tiny arms stands on a kitchen counter, flexes one tiny arm, then curls the other hand on the bicep to make a heart shape and beams at the camera. Fixed camera, one take. Audio: a cute squeak and a giggle, no music.

What it costs on Seedance 2.5

Seedance 2.5 credits by clip length and resolution, with generated audio. From the studio's own credit code. 4K comes with Pro, Max and Business.

Clip length720p1080p
5 s24 credits50 credits
8 s38 credits80 credits
10 s47 credits100 credits

Sources, as checked:

Seedance price per second on KreatorFlow

Seedance 2.0 and 2.5 at 720p and above: price per second on each plan (monthly and annual), credits per 5-second clip, and clips per plan.

Model · resolutionCreditsPer secondUSD per second (monthly)USD per second (annual)Creator · 525 credits/moPro · 1,050 credits/moMax · 2,500 credits/moBusiness (2 seats) · 4,500 credits/mo
Seedance 2.0 · 720p15/5s3/s$0.119–0.145/s$0.099–0.121/s3570166300
Seedance 2.0 · 1080p30/5s6/s$0.238–0.289/s$0.198–0.241/s173583150
Seedance 2.0 · 4K70/5s14/s$0.554–0.675/s$0.462–0.563/sPro and up153564
Seedance 2.5 · 720p24/5s4.8/s$0.190–0.231/s$0.158–0.193/s2143104187
Seedance 2.5 · 1080p50/5s10/s$0.396–0.482/s$0.330–0.402/s10215090
Seedance 2.5 · 4K120/5s24/s$0.950–1.157/s$0.792–0.964/sPro and up82037

Seedance 2.0 and 2.5, 720p and above. Plan columns: 5-second clips a month on the plan's full monthly credits. Longer clips cost the same per second, so a 10-second clip uses twice the credits. Generated audio is included. USD per second: each plan's price over its full monthly credits, lowest to highest plan; monthly is the regular monthly price, annual is the yearly price divided by 12.

What is the Bicep Heart trend?

A short, cheerful flex: one arm curls up, the other hand bends into half a heart against the bicep, and the two together make a heart. MakeViral traces it to a gym joke on X in late October 2026, with the #bicepheart hashtag first seen on TikTok on 26 October. By 1 November it counted 120 videos and 376,108 views on that hashtag, with the biggest single posts over a million views each (its figures, as of 1 November).

It works because it is quick, wholesome and easy to copy, and the heart lands right before the loop restarts.

Tips for a clean heart shape

Video models know a two-hand heart much better than this one, so they sometimes slip into it. Describe the hand as "a curved C shape resting on top of the bicep", not just "a heart", and keep the flexed arm still while the hand moves.

Medium shot from the waist up works best: close enough to read the hand, wide enough to see the whole arm. If a version misses the shape, generate again rather than adding more words. The example clip on this page shows the problem: it holds the flex, then closes the heart with both hands over the arm instead of one hand on the bicep.

Only use your own face, or someone who agreed to it. Never use photos of celebrities, athletes, strangers or anyone under 18, and label realistic AI video where the platform asks you to.

In the video studio a real face goes in through a saved Character and its @handle, not a raw photo upload.

Frequently asked questions

Can I make the Bicep Heart video for free?

New accounts get 25 starter credits for images and video. Free video covers Seedance 2 Fast and Seedance 2.0 Mini at 720p only, queued and rate limited. Other video models and 1080p and above need a plan. Seedance 2.5 is on the paid plans, starting with Creator.

Which AI makes the Bicep Heart trend?

Any good text-to-video or photo-to-video model can. On KreatorFlow, Seedance 2.5 makes it with sound in one generation. KreatorFlow is an official partner of BytePlus, a ByteDance company.

Can I put myself in it?

Yes. Save a clear photo of yourself as a Character and use its @handle in the prompt. Only use your own face or someone who agreed to it.

What song is used for the Bicep Heart trend?

Most posts use the same original sound on TikTok. Add it in the TikTok editor when you post, rather than putting music into the clip.

Why does the AI make a two-hand heart instead?

It is the shape models see most. Describe the hand as a curved C shape resting on top of the flexed bicep, keep the camera fixed and try again.

Try it in the studio

New accounts get 25 starter credits for images and video. Free accounts can make video on Seedance 2 Fast and Seedance 2.0 Mini at 720p, queued and rate limited. A plan adds every video model, 1080p and above, and no queue. The cost is shown before every generation.

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