Seedance 2.5 — AI video generator
Long-form AI video with reference control and native audio
Seedance 2.5 is the longest-running video model on Vixlens, and the one to reach for when a shot has to hold. Give it a reference image and it keeps the same face, product or set across the whole clip instead of redrawing them shot to shot, with a soundtrack generated alongside the picture rather than dubbed on afterwards.
Made with Seedance 2.5
Real output from Seedance 2.5, each with a prompt you can open in the composer.
What Seedance 2.5 is good at
- Holds a subject's identity across a long take from a single reference still
- Audio is generated with the picture, so footsteps and dialogue land on frame
- Aspect ratios from cinematic 21:9 down to vertical 9:16 without recropping
- Adaptive duration lets the model choose the length the prompt actually needs
What people use it for
- Product films that have to show the real product, unchanged, end to end
- Story beats too long for the 5-to-10-second ceiling most models stop at
- Talking-head and performance clips where the audio has to match the motion
Seedance 2.5 specifications
- Duration
- 4–30s, or adaptive
- Resolution
- 480p, 720p, 1080p
- Aspect ratios
- adaptive, 16:9, 4:3, 1:1, 3:4, 9:16, 21:9
- Audio
- Generated with the clip
- Reference image
- Optional
- Output format
- MP4, MOV
Plan limits apply on top of these — see pricing.
Example prompts for Seedance 2.5
Written for this model in particular. Open one in the composer and edit it from there.
“A night stage of a gravel rally — a boxy 1980s four-wheel-drive rally car comes through a long left-hander in the pines, headlights raking the trunks, gravel spray backlit by the follow car”
Try this prompt“A flamenco dancer alone in a dark practice room, driving a long footwork sequence until dust lifts off the boards and hangs in the light”
Try this prompt“A 30-second commercial for a pair of hand-welted leather boots, one unbroken low tracking shot held at ankle height as they cross wet cobblestones”
Try this promptSeedance 2.5 FAQ
- What is Seedance 2.5?
- Seedance 2.5 is an AI video model from ByteDance, available on Vixlens. Seedance 2.5 is the longest-running video model on Vixlens, and the one to reach for when a shot has to hold. Give it a reference image and it keeps the same face, product or set across the whole clip instead of redrawing them shot to shot, with a soundtrack generated alongside the picture rather than dubbed on afterwards.
- How long can a Seedance 2.5 clip be?
- Seedance 2.5 generates clips of 4–30s, or adaptive.
- What resolution does Seedance 2.5 output?
- Seedance 2.5 outputs at 480p, 720p, 1080p on Vixlens.
- Does Seedance 2.5 generate audio?
- Yes — Seedance 2.5 generates the soundtrack together with the picture, so it stays in sync with the motion.
- How much does Seedance 2.5 cost?
- Generating needs a plan — there is no free tier. Starter is $10/month for 1,000 credits (launch offer: $6/month for the first 20 Starter subscribers, locked in while they stay subscribed). Credits are spent per generation based on the model, resolution and duration, and the exact cost is shown before you generate.
Other video models on Vixlens
Seedance 2.0
1080p AI video with multi-subject references and motion from a clip
ByteDanceSeedance 2.0 Mini
The cheapest way to test a video idea before committing credits
GoogleVeo 3.1
Google's flagship video model, with synchronized audio at up to 4K
GoogleVeo 3.1 Fast
Veo 3.1 quality at lower latency, for iterating on a shot
Black Forest LabsFlux 3 Video
Black Forest Labs' first video model, with a fast draft mode
xAIGrok Imagine Video
xAI's video model with native synchronized audio
Start generating with Seedance 2.5
Every model on one credit balance — pick a plan and start creating.