Seedance v1
Full-body motion — dance, sports, gestures
What It Does
Seedance v1 from ByteDance is built for body movement. Arms, legs, torso — it coordinates limbs better than any other free model. Upload a full-body photo and describe a physical action like "performs a spin with arms extended" and the output keeps body proportions consistent without limbs clipping through each other. The trade-off: facial detail is weaker than portrait-focused models like Hailuo 02, and backgrounds sometimes warp during large movements. Three quality tiers are available: Lite (free), Fast, and Pro.
Best For
Dance choreography
Arms and legs coordinate properly — other models often produce clipping or broken joints during dance
Sports and exercise
Yoga poses, martial arts stances, stretching — movements with clear body structure work well
Gestural acting
Waving, pointing, shrugging — expressive body language from waist up or full body
Showcase Prompts
Copy these prompts to use directly, or tweak them to fit your needs.
person performs a smooth spin, arms extend outward, confident posture
Spinning with arm extension
person transitions into yoga warrior pose, slow controlled movement
Yoga pose transition
person waves at camera, then does a small bow, casual energy
Wave and bow sequence
Strengths & Limitations
Strengths
- Best limb coordination among free models — no clipping or broken joints
- Three tiers: Lite (free/480p), Fast (720p), Pro (720p highest quality)
- Built-in audio generation
- 2-image start/end frame input for controlled motion
Limitations
- Facial detail noticeably weaker than portrait-focused models
- Backgrounds can warp during large body movements
- Requires full-body or waist-up shots — close-ups produce poor results
How to Use
Upload a full-body photo
Full-body or at minimum waist-up. Clear clothing boundaries and visible limbs help. Cropped headshots will not work well.
Name the specific move
"Performs a moonwalk" or "transitions into warrior pose" — not "dances" or "moves around." Specific move names produce much better results.
Pick Lite, Fast, or Pro
Lite: 10 credits, 480p — good for testing. Fast: 16 credits, 720p — balanced. Pro: 30 credits, 720p — best quality. Start with Lite to validate the motion.
Prompt Tips
Name specific moves, not genres
"Performs a moonwalk" beats "does hip-hop dance." The model needs a physical description of what the body does, not a genre label.
performs a smooth spin, arms extend outward, weight shifts to left foot
Mention individual body parts
Listing arms, legs, hips, head separately helps the model coordinate. "Arms raise, hips sway left" is better than "dances rhythmically."
arms raise overhead, hips sway left then right, head tilts with the beat
Match energy level to tier
Lite handles gentle movements. Save aggressive moves (spins, jumps, flips) for Fast or Pro — Lite will produce artifacts on high-energy actions.
Pricing
Lite: 10 credits for 5s/480p (fits daily free credits). Fast: 16 credits for 5s/720p. Pro: 30 credits for 5s/720p.
How It Compares
Seedance v1 vs Hailuo 02
ViewHailuo 02 handles faces and subtle expressions better. Seedance v1 handles full-body dance and athletic motion better. Choose based on whether the focus is face or body.
Seedance v1 vs Seedance 1.5 Pro
ViewSeedance 1.5 Pro is the paid upgrade — 12s duration and smoother motion. v1 is the free entry point for testing choreography ideas.
Seedance v1 Summary
Seedance v1 is best for Dance choreography. Its strongest advantage is Best limb coordination among free models — no clipping or broken joints, while the key limitation is Facial detail noticeably weaker than portrait-focused models. For lower iteration cost, validate prompts on free models first, then switch to this model for final renders.
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