Seedance 2.5 AI Video Generator

The official Seedance API is served through ByteDance's Volcano Engine cloud platform. You register a developer account, complete the account verification and billing setup that platform requires, create an API key, then call the Seedance model endpoint from your own backend with a prompt and generation parameters. Several third-party aggregators — fal being the one most people ask about — also resell Seedance access behind their own API keys, which is usually faster to get started with than the official developer onboarding. Either route assumes you are comfortable writing code, handling asynchronous jobs and polling for the finished video. If you only want to generate a few Seedance videos rather than build a product on top of the model, the generator panel at the top of this page does the same job with no key and no code.

Seedance 2.5 API pricing is usage-based rather than a flat monthly fee: you are billed per generation, scaled by the video's duration and resolution, so a 10-second 720p clip costs meaningfully more than a 4-second 480p one. That means your bill depends on volume you have to forecast in advance, and rates are set by whichever provider you go through — the official Volcano Engine listing and resellers like fal each publish their own numbers, and those numbers get revised as capacity changes. Always read the current pricing page of the provider you plan to use rather than a figure quoted second-hand. On xImagineai the same duration-and-resolution scaling applies, but it is expressed in credits from a one-time pack, and the exact credit cost appears on the Generate button before you run anything.

Yes — Seedance 2.0 was exposed through the same Volcano Engine developer platform before Seedance 2.5 arrived, and the integration pattern is identical: authenticate, submit a generation job, poll for the result. Providers generally keep an older model version callable for a period after a newer one ships so existing integrations do not break overnight, but the version string in your request has to match what the provider currently lists. If you have an existing Seedance 2.0 API integration, moving to Seedance 2.5 is normally a matter of changing the model identifier and re-checking the parameter names, not rewriting the flow. Confirm which versions are live in the provider's current model list before you deploy.

xImagineai uses credits from a one-time pack rather than a recurring subscription, so you are not locked into a monthly charge to keep access. Each Seedance 2.5 generation deducts credits according to the duration and resolution you select in the panel, and the panel displays that exact cost on the Generate button before you confirm — you never discover the price after the fact. New accounts get free credits to start, and daily check-in adds free credits per day. There is no separate per-day generation cap layered on top: as long as you have credits, you can keep generating.

ByteDance has published research and technical material for the Seedance family, and its cloud platform ships server SDKs that cover the Seedance endpoints alongside its other models — but Seedance 2.5 itself is a hosted proprietary model, so there is no open-weights GitHub repository you can clone and run locally. Community wrappers and example projects do exist on GitHub, though they are unofficial and follow whatever the hosted API exposes. Treat the provider's own documentation as the source of truth for parameters and versions.

Seedance 2.5 is ByteDance's video generation model — it turns a text prompt or a still image into a short video clip, with a focus on holding characters, objects and backgrounds stable across the whole clip rather than letting them drift frame to frame.

Seedance 2.5 is the newer release and sits above Seedance 2.0 in the same family. ByteDance positioned the jump as a substantial capability step rather than a routine patch — which is why the version number moved from 2.0 to 2.5 instead of 2.1 — with the improvements concentrated in output fidelity, motion stability across longer clips, and how closely the result follows a detailed prompt. ByteDance has not published a side-by-side benchmark table between the two versions, so the practical way to judge the gap is to run the same prompt through both and compare the output yourself. In day-to-day use the difference is most visible on prompts with several moving elements, where Seedance 2.0 is more likely to lose consistency partway through.

Seedance 2.5 shipped in 2026 as the follow-up to Seedance 2.0. ByteDance rolled it out across its own surfaces and its cloud platform over a period rather than as one global launch moment, so the Seedance 2.5 release date you will see quoted depends on which platform's announcement is being referenced.

Seedance 2.0 was never free without limits. ByteDance's consumer apps hand out a free daily credit allowance that covers a small number of generations before it runs out and resets the next day, while the developer API has no free tier at all — it is billed per generation from the first call. So "Seedance 2.0 free" in practice means a capped daily trial, not open access. The same shape applies to Seedance 2.5 across the consumer platforms. On xImagineai you get free starting credits plus free credits per daily check-in, and no per-day generation cap on top of your balance.

The panel above runs ByteDance's current Seedance models on xImagineai — open the model selector to see exactly which version is being used for your generation, and switch between the standard and Fast variants depending on whether you want maximum quality or a quicker, cheaper result. Both text-to-video and image-to-video are available from the same panel, so you can start from a prompt or upload a still frame and animate it.

All three are capable models with different emphases rather than a clear single winner. Seedance 2.5 is generally strongest at temporal consistency — keeping a subject recognisably the same across the clip. Kling is widely picked for smooth cinematic camera movement and natural physics. Minimax tends to be favoured for expressive character motion. Which one wins depends entirely on your prompt, so the honest answer is to run the same prompt through more than one and compare. Seedance and Kling are both available in the panel on this page, so switching between them takes a dropdown rather than a second account.