Seedance 2.5 on Geneso: AI video generator.

Seedance 2.5 is a video generation model from ByteDance’s Seed team, launched on July 31, 2026. Geneso provides access through Runware; it is not the maker. The maker built it for longer clips: up to 30 seconds of audio and video in a single pass, up from 15 seconds, with multi-round extension to go further. Runware describes it as suited to branded storytelling, advertising and explainers.

ByteDance names long-form storytelling, multimodal reference and editing as its strengths, along with more natural textures, skin and lighting, and better shot transitions in longer videos. The takes on this page are only four seconds long, so they cannot show a long story. They do show a cut between two shots and close detail on skin and clay.

Seedance 2.5 can work from references as well as text. The maker says one pass can take up to 30 images, 10 video clips and 10 audio clips, and keep the appearance and voices of several characters. On Geneso you can add up to two frame images, up to 30 reference images and reference videos.

The maker also lists editing: timestamp-level control, green screen, camera perspective changes and reference-based edits that keep the rest of the shot. It names its limits too: physical plausibility in complex motion and stability when several subjects interact. When a busy scene falls apart, simplify it to one subject and one clear action.

Start in the video generator. The buttons on this page preselect Seedance 2.5. Geneso works in your browser with an English or Spanish interface, and you can write prompts in Spanish.

Each take was generated on Geneso at 4 seconds and 720p with audio, the shortest Seedance 2.5 duration here. The clip at the top is a two-shot request: a wide view of a cyclist cresting a hill road above a misty valley at dawn, then a cut to a close-up of her face as she catches her breath. The prompt also asks her to smile, which the clip does not clearly show, so treat details like that as requests, not guarantees.

Below, a barista in a busy café slides a coffee toward the camera in a vertical frame; the prompt asks for a line in Spanish, so listen to the audio and judge the result yourself. An elderly potter’s wet hands shape clay on a spinning wheel, a close-up that tests skin texture and light. A wet golden retriever turns and shakes its head on a lake shore in low sun, in a square frame.

Three habits are worth copying from these prompts. Open with the shot type. Give each shot one action. End with the sounds you want and what to leave out, like music, subtitles or logos. Each slate keeps the original prompt, settings and the credit charge recorded then, a past record, not today’s quote.

The table compares maximum duration, resolutions, starting price, credits for five seconds at 720p and plan access from the live catalog. The starting price uses each model’s shortest duration at its lowest resolution, and “Not available” means the model does not offer that setting. It also includes Seedance 2.0, the older sibling, which offers 4 to 15 seconds on Geneso.

The makers stress different things. ByteDance points to long-form storytelling, multimodal reference and editing. MiniMax says early testing shows H3 excels at instruction following and accurate text and brand rendering; on Geneso it runs at 2K for 5 to 15 seconds. Seedance 2.5 stops at 720p here, so read the Resolutions row first if resolution matters most.

Each model has its own page with real takes: Kling 4.0 and MiniMax H3. Wan 3.0 also reaches 30 seconds on Geneso. Compare outputs with the same subject, action and camera instructions.

The shortest Seedance 2.5 clip on Geneso is 4 seconds. At 480p it costs 740 credits, and at 720p it costs 1,664 credits. Five seconds at 720p is 2,080 credits. Duration and resolution both change the total, so test a prompt on the shortest clip first. The generator shows the estimate before you generate, and the example slates record past charges, not today’s price.

Seedance 2.5 is available on the Free plan. The Free plan includes 300 welcome credits and 50 daily credits. These allowances do not cover one clip, so you need a credit pack or a paid plan.

Starter is $3.99 per month with 4,500 monthly credits; Pro is $7.99 with 10,000; Max is $14.99 with 20,000. See pricing for the current plans. Credits do not expire, and paid plans add their monthly allowance to your balance.

Geneso currently offers 108 available models, including 63 image models and 45 video models. Explore the home page for the wider catalog or browse image tools when your next step is working with a still image rather than making another clip.