Seedance Ai Dev is an independent video workspace for ByteDance’s Seedance 2.5 and 2.0 models, with no affiliation to ByteDance or Dreamina. Turn a text prompt or an image into a video with model-aware controls for resolution, duration and aspect ratio, and see the exact credit cost before you generate. Seedance 2.5 offers 5–30 second clips at 480p, 720p or 1080p with synchronized audio and reference-led work, while Seedance 2.0 Standard, Fast and Mini cover shorter tests at lower credit rates. The site publishes real sample outputs with their original prompts — a cinematic ridge reveal, an anime puddle jump, a bus-stop dialogue scene and a product macro — so you can judge motion, sound and timing before spending credits. Eligible new accounts receive five free credits after email verification, enough for one five-second Mini clip, and one-time packs start at $9.90. It suits creators and advertisers who want direct access to Seedance generation with transparent per-video pricing and no subscription.