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Auto uses the model’s intelligent choice.
⚠️Note: NSFW content is not supported.
Reference media (optional)
Your Professional Video Awaits
Type a prompt, pick resolution and duration, optionally add reference media, then hit Generate.
Broadcast-Quality Clips With Native Audio
Seedance 2.5 from ByteDance generates up to 30 seconds of broadcast-ready video with dialogue, sound effects, and music baked in — all in a single pass. Drop in a prompt, a first-frame image, a last-frame image, up to 30 reference images, 10 reference videos, and 10 audio files. The audio is generated in lockstep with the visuals, so you never stitch clips in post.
How Seedance 2.5 Builds a 30-Second Clip
Seedance 2.5 combines every input type — text, images, videos, audio — into one production-ready MP4 with synchronized audio.
Pick Your Input Mix
Seedance 2.5 accepts text alone, a first-frame image for animation, a last-frame image for transition control, or any combination. Layer up to 30 reference images for style, 10 reference videos for motion, and 10 reference audio files for rhythm.
Set Duration and Resolution
Choose 4 to 30 seconds — or pick auto and let Seedance 2.5 decide the best length. 480p for fast drafts, 720p for balanced work, 1080p for broadcast. Toggle audio generation, pick an aspect ratio (or auto), then click Generate.
Download the Broadcast Clip
Seedance 2.5 returns a single MP4 with perfectly synced audio. Download in 480p, 720p, or 1080p — ready to publish to YouTube, TikTok, Reels, or anywhere your audience lives.
Why Creators Pick Seedance 2.5 for Long-Form
One tool. Every input type. Native audio sync. Production-grade output.
Long-Form Text to Video
Describe any scene and Seedance 2.5 brings it to life with perfectly synced audio — up to 30 seconds in a single pass, no stitching required.
Native Audio Generation
Dialogue, sound effects, and music are produced in lockstep with the visuals. No post-production, no manual audio stitching.
First-Frame Animation
Drop a starting image and Seedance 2.5 animates it naturally, with audio baked in from frame one.
Last-Frame Control
Set an ending image and Seedance 2.5 builds a smooth, broadcast-quality transition to it — with matching audio fade if needed.
Up to 10 Reference Videos
Layer motion, style, and pacing from up to 10 reference videos. Seedance 2.5 follows your direction at broadcast-level precision.
Up to 30 Reference Images
Blend up to 30 reference images for comprehensive style transfer and creative compositions — useful for character consistency.
Up to 10 Reference Audio Files
Upload up to 10 audio files and Seedance 2.5 syncs every visual to your music, voice, or sound design automatically.
Adaptive Aspect Ratios
16:9 for YouTube, 9:16 for TikTok and Reels, 1:1 for square, 21:9 for cinematic — or auto for intelligent selection.
Production-Grade Output
480p for fast drafts, 720p for balanced production, 1080p for broadcast. Seedance 2.5 holds quality at every resolution.
Seedance 2.5 Pricing — Pay Per Render
Transparent Seedance 2.5 pricing — 22 credits per 4-second clip at 480p with no reference video. Native audio sync is included at no extra charge.
| Duration | 480p | 720p | 1080p(estimated) |
|---|---|---|---|
| 4s | 147 credits | 331 credits | 549 credits |
| 10s | 367 credits | 828 credits | 1540 credits |
| 15s | 552 credits | 1240 credits | 2310 credits |
| 30s | 1102 credits | 2481 credits | 4621 credits |
From 22 credits per 4-second 480p clip. Native audio sync included. Full commercial rights on every paid render.
- Text, first-frame, last-frame, reference image / video / audio
- Native audio sync included (no extra charge)
- Free credits for new sign-ups
- Full commercial rights on paid plans
- Refunded automatically on generation failure
What creators say about Seedance 2.5
Real feedback from studios and agencies using Seedance 2.5 daily.
“Seedance 2.5 is the first video AI with built-in audio sync. I dropped rendering video and audio in separate tools — Seedance 2.5 handles both in one pass.”
“Tested Seedance 2.5 against every pro video tool. 30-second native audio clips at 1080p are in their own league.”
“Used 30 reference images for a character consistency test on Seedance 2.5. Broadcast-grade fidelity across every shot.”
“1080p Seedance 2.5 with synced audio saved a campaign. Clients were blown away by the production quality.”
“Reference video guidance on Seedance 2.5 is incredible. I can mix motion style from multiple clips in one session.”
“Started with free credits on Seedance 2.5. On the Pro plan now — native audio sync pays for itself.”
Seedance 2.5 — Common Questions
Quick answers about Seedance 2.5's long-form video pipeline.
What is Seedance 2.5?
Seedance 2.5 is ByteDance's flagship long-form video AI. It accepts text, images, videos, and audio simultaneously to produce a coherent 4–30 second MP4 with native audio sync built in.
Which input modes does Seedance 2.5 support?
Text-only prompts, first-frame animation, last-frame control, up to 10 reference videos, up to 30 reference images, and up to 10 audio files — all combined in one generation.
Is audio really generated with the video?
Yes. Seedance 2.5 produces audio and video together in a single pass — dialogue, sound effects, and music are all synchronized from frame one. You can disable audio if you want a silent clip.
What resolutions are available?
480p for drafts, 720p for balanced work, 1080p for broadcast. All three resolutions are available for every Seedance 2.5 render.
How long can each clip be?
4 to 30 seconds per render. For longer narratives, render multiple clips and stitch them in your editor — or pick auto and let Seedance 2.5 decide the length.
Can I combine reference videos and images?
Yes. Seedance 2.5 lets you combine up to 30 reference images, up to 10 reference videos, and up to 10 audio files in a single render.
What is the cheapest Seedance 2.5 tier?
480p / 4-second render without reference video starts at 22 credits — the entry-level Seedance 2.5 tier.
Can I use Seedance 2.5 outputs commercially?
Yes. Paid plans include full commercial rights on every Seedance 2.5 render — use them in ads, courses, client work, and paid social.
What does the auto aspect ratio do?
When you set aspect ratio to auto, Seedance 2.5 picks the best ratio based on your input media and intended platform.
How does Seedance 2.5 compare to MiniMax H3?
Both are multimodal video AI tools. Seedance 2.5 generates native audio in a single pass (MiniMax H3 does not generate audio), supports longer clips (30s vs 15s), higher resolution (1080p native vs 2K upscaled), and larger reference sets (30 images vs 10).
Skip the silent short-clip ceiling. Seedance 2.5 ships 30-second broadcast-quality video with native audio sync — all in one pass. Try Seedance 2.5 free today.