On-site studio
Create at /generate/ by default — no forced external app path.
Video · Seedance 2.5
Video model 
Seedance 2.5
Seedance 2.5 Seedance 2.5 for first/last-frame AI video
The flagship Seedance option for flexible durations, first/last frame control, and audio-aware workflows when those controls are available.
- Flexible duration window for story-shaped clips
- First frame, last frame, and bookend control
- Text, image, and reference modes in one studio
How it works on this site
Membership & credits
Membership unlocks create; credits span models with a pre-run quote.
Independent portal
Not a vendor site. Plans apply to image25.xin accounts only.
What Seedance 2.5 is best at
Seedance 2.5 is the primary Seedance AI video generator on image25.xin: flexible clip length, first frame and last frame control, text-to-video, image-to-video, and reference modes. If you searched for a Seedance flagship, an online AI video tool with bookends, or a first/last frame workflow, this landing is the deep page — not a generic family blurb.
2.0 Pro, Fast, Mini, and standard remain listed because cost and ceiling still matter. They are not replacements for 2.5’s current control profile. Use them as a ladder: Mini and Fast to learn motion language, standard or Pro when the 2.0 line fits, 2.5 when you want the flagship path.
This independent portal does not claim official vendor status. Membership unlocks create at /generate/. Credits quote before generate and apply only to accounts on this site. Audio-aware options and exact duration ranges follow the live catalog and can differ from marketing memory.
The practical rule: if the shot has a required opening or ending still, start on 2.5 with the matching mode. If you are only learning how to prompt motion, do that on Mini or Fast, then promote the idea. Flagship credits are for clips that already know what they are.
Highlights
Directional control with keyframes
Steer openings and endings with a first frame, a last frame, or both. Seedance 2.5 is the page for people who searched for an AI video generator that can bookend a shot instead of gambling the whole arc.
Audio-aware options when exposed
Use audio-related controls when the live catalog shows them. Do not assume every tier has the same switches; confirm in /generate/.
Family depth under the flagship
Fall back to 2.0 Pro for ceiling, Fast or Mini for drafts, or standard 2.0 for a middle spend. 2.5 stays the current control-forward recommendation.
On-site multimodal video
Text-to-video, image-to-video, and reference-to-video style inputs belong in the same studio. Membership unlocks create; credits quote before each run.
Best for
Story openings
Lock the first frame, then generate motion that has to honor that still.
Bookend shots
Define start and end images when the arc must land on a specific closing composition.
Campaign motion with constraints
Brand-safe clips where framing is not optional and a random text-to-video roll is not enough.
Flagship Seedance delivery
The default Seedance choice on this portal when you want the current control profile rather than a 2.0 cost ladder experiment.
How to start
- 01
Open Seedance 2.5
The CTA preselects this flagship model in the on-site video studio.
- 02
Choose text, frames, or reference
Only attach first/last frames when those stills exist. Empty bookends waste a 2.5 run.
- 03
Set duration against the quote
Flexible length is not free. Read credits before you ask for a long cut.
- 04
Review motion, then iterate
Adjust prompt, frames, or duration. Drop to Fast or Mini only for throwaway motion tests.
Related searches this page answers
Flagship Seedance and bookend-video searches this 2.5 page should satisfy:
Related models
FAQ
Seedance 2.5 vs 2.0 Pro — which should I use?
Use 2.5 when you want the current flagship control profile: flexible duration and first/last frame workflows. Use 2.0 Pro when you are chasing a higher ceiling (up to 4K where the catalog allows) on the 2.0 line. Compare quotes in the studio; they are different jobs.
Do I need both first and last frames?
Only for first+last modes. Text-to-video still works with a prompt alone. Image-to-video can start from a single first frame. Pick the mode that matches the stills you actually have.
Is this the official Seedance site?
No. image25.xin is an independent portal with studio access. Memberships and credits apply only here. Product names describe selectable models.
Does Seedance 2.5 support audio-related controls?
When the live catalog exposes them for this model, yes. When it does not, do not invent toggles. Confirm in /generate/ rather than copying another site’s screenshot.
Where do I generate?
On-site at /generate/ with Seedance 2.5 preselected from this page. This site does not use a /v1/tools workbench UI as the default create path.
Should I draft on Mini first?
If you are still learning motion prompts, yes. Mini and Fast exist to buy attempts. Promote keepers to 2.5 when bookends and delivery quality matter.
Seedance 2.5 is the primary Seedance recommendation on this portal; 2.0 tiers remain as cost and ceiling alternatives. image25.xin is an independent portal, not an official vendor site. Create in the on-site studio at /generate/. Membership unlocks generation; credits are quoted before each run and apply only to accounts on this site. Exact sizes, modes, and prices follow the live catalog and can change with runtime updates.