SEEDANCE25APIINDEPENDENT
FIELD NOTES / GUIDE

What Is Seedance 2.5? ByteDance's Multimodal Video Model

Seedance 2.5 is ByteDance’s next-generation video model. It is designed to take a mix of text, images, video clips and audio files as input, and return one continuous video with sound generated in the same pass.

The official developer API is live. EvoLink separately documents text-to-video, image-to-video, and reference-to-video workflow IDs; account entitlement, generation, route pricing, billing, regions, and quotas still require live validation.

The headline product direction

1. Longer single-take workflows. Current documentation lists 4–30 seconds. Validate the exact enum and account behavior on the active provider route before production.

2. Production-oriented video output. Current documentation lists 480p and 720p. Product-side 4K showcases are not an EvoLink API contract.

3. Multimodal references. Reference-to-video documentation lists up to 30 images, 10 videos, and 10 audio files. Treat this per-type split as documented but still test ingestion and formats live.

Audio is generated with the picture, not after it

Seedance 2.5 product material emphasizes video and sound generated together. Whether a public provider route exposes native audio, which control enables it, and how it is billed must be verified from that route’s documentation.

What it costs

This site does not mirror a rate card — the EvoLink console shows the current price and billing unit for the live route. Do not infer free audio, per-second charging, failed-job policy, or filter multipliers from another route. Verify the live pricing and a real billing record in the provider console before committing to a budget. Our pricing page tracks the evidence boundary, and the playground helps you build a copy-ready request.

How to access it

The official API and EvoLink integration are live. The API quickstart shows the three workflow IDs and a runnable T2V example; the agent guide covers safe automated integration and key handoff.

EvoLink’s three workflow IDs and launch limits are live, and the site’s /openapi.json provides a copy-ready integration aid. Developers can build a provider-neutral job layer, start with a short 2.5 call, keep the current console price configurable, and retain Seedance 2.0 as rollback.

Where it stands against the field

The Seedance family has been competitive in public video generation. On EvoLink, 2.5 adds a 4–30 second launch range and separate T2V, I2V, and R2V workflows; R2V accepts the documented per-type reference budgets. For prompt structures designed around those controls, see the prompt library.

The short version

Seedance 2.5 is a live video model you can direct with text and multimodal references. The official API and EvoLink integration are live. This is an independent guide, and EvoLink is the recommended third-party provider. Start with one short output, verify the current console price, and use the playground to build a copy-ready request.

Q&AQUICK ANSWERS
Q.01Is Seedance 2.5 free to use?
No. The current price for the live EvoLink Seedance 2.5 route is shown in the EvoLink console — check it there along with the pricing documentation. Do not assume per-second billing, free audio, or an option multiplier from another model version.
Q.02Who makes Seedance 2.5?
ByteDance develops the Seedance video model family. This site is an independent guide and is not affiliated with ByteDance. EvoLink is the recommended third-party API provider — not us and not the model's maker.
Q.03What's the fastest way to try Seedance 2.5?
The official developer API is live. For third-party access, EvoLink documents three workflow IDs, but confirm that your account exposes the route and complete a small generation plus billing check before production.