Seedance 2.5: Longer Shots, Native Audio
The next generation of Seedance — clips up to 30 seconds with sound generated in the same pass. Live on AutoDirector now, in all three modes.
Seedance 2.5 is the next-generation model in ByteDance's Seedance family, and its headline change is length: where Seedance 2.0 tops out at 15 seconds, Seedance 2.5 generates clips up to 30 seconds in a single pass. That doubles what fits in one take — a full product story, a complete joke, an entire scene beat — without stitching multiple generations together.
The second major upgrade is native audio. Instead of generating silent footage and adding sound later, Seedance 2.5 produces audio in the same generation pass, keeping sound and picture in sync by construction.
On AutoDirector, Seedance 2.5 runs in the same three modes as Seedance 2.0 — text to video, image to video, reference to video — at 480P, 720P and 1080P, with the same account and credits as every other model. Prompts and workflows you built on Seedance 2.0 carry over directly.
Seedance 2.5 specs
| Generation modes | Text to video · Image to video · Reference to video |
|---|---|
| Duration | 4–30 seconds (any whole second) |
| Resolutions | 480P / 720P / 1080P |
| Aspect ratios | 16:9, 9:16, 1:1, 4:3, 3:4, 21:9 |
| Audio | Native audio generation |
| Pricing | From 8 credits per second (480P) |
What changes from Seedance 2.0
Up to 30-second takes
Twice the maximum length of Seedance 2.0 — enough for a complete scene or product story in one uncut generation.
Native audio
Sound is generated with the picture in a single pass, so ambience and action stay in sync without post-production.
Same three modes
Text, image, and reference to video all carry over — your existing Seedance workflows apply on day one.
Familiar prompting
Prompts written for Seedance 2.0 transfer directly; longer durations mainly reward more explicit shot-by-shot structure.
Draft in 480P, deliver in 1080P
Three resolution tiers priced per second — iterate cheaply at 480P, then re-render the keeper at 1080P.
Pay per second, not per block
Any whole-second length from 4 to 30 — a 7-second shot costs 7 seconds, not a forced 10 or 15.
How to generate a video with Seedance 2.5
- 1
Pick Seedance 2.5 in the generator
Open text to video, image to video or reference to video and select Seedance 2.5 from the model list.
- 2
Structure prompts shot by shot
30-second generations reward explicit sequencing: describe each beat in order, with camera and lighting per shot.
- 3
Set duration and resolution
Choose any length from 4 to 30 seconds and 480P, 720P or 1080P — the credit cost updates before you generate.
- 4
Generate, then refine
Audio is produced in the same pass. Draft short and low-res first, then extend the take and step up the resolution for the final render.
Prompt ideas that use 30 seconds well
These are written for long single takes — paste one in and set the duration to 20–30 seconds.
One-take product story
Single continuous shot: a coffee bean falls in slow motion, camera follows it into a grinder, through swirling grounds, pulls back to reveal a finished latte on a sunlit cafe table, warm tones, smooth motion throughout
Scene with a turn
A violinist plays alone in an empty concert hall; lights slowly rise revealing a full orchestra joining in; camera cranes up to a wide shot as the music swells, cinematic, golden light
Long vertical hook
Vertical video: time-lapse of a street corner from dawn to night — vendors open, crowds build, neon flickers on, rain begins — one fixed camera position, rich color grading
Seedance 2.5 pricing
Text / image to video: 8 credits per second at 480P, 20 at 720P, 50 at 1080P.
Reference to video: 16 credits per second at 480P, 32 at 720P, 80 at 1080P.
Example: a 10-second 720P clip costs 200 credits; a full 30-second 720P take costs 600.
See credit packs and plansSeedance 2.5 FAQ
What is Seedance 2.5?
Seedance 2.5 is the next-generation AI video model in ByteDance's Seedance family. Its two headline upgrades over Seedance 2.0 are single-pass clips of up to 30 seconds and native audio generated together with the picture.
How do I use Seedance 2.5 on AutoDirector?
Sign in, open any of the three generator modes and pick Seedance 2.5 from the model list. It uses the same account and credits as every other model — no separate access or waitlist.
How is Seedance 2.5 different from Seedance 2.0?
Twice the maximum duration (30s vs 15s) and native audio. Modes, aspect ratios, and prompting style stay the same, so existing Seedance workflows carry over.
How much does a Seedance 2.5 video cost?
It depends on duration, resolution and mode. Text and image to video cost 8 credits per second at 480P, 20 at 720P and 50 at 1080P; reference to video is 16 / 32 / 80. If a generation fails due to a system error, credits are automatically refunded.
When should I still use Seedance 2.0?
When you need 4K output or the lowest price per second. Seedance 2.0 tops out at 15 seconds but renders up to 4K and starts at 4 credits per second.
Other models on AutoDirector
Shoot your first 30-second take
Text, image or reference to video — with sound, in one pass, priced per second.