Seedance 4.0Online AI video generator that turns text prompts and images into short HD clips

Seedance 4.0 is a web-based AI video generation service that creates short clips from either a text prompt or a still image. It is aimed at creators, marketers, and small teams who want to produce social-ready or campaign-ready video without traditional filming or editing. Users enter a prompt or upload an image, set parameters like aspect ratio, resolution, and duration, then generate a clip in seconds. The tool offers both text-to-video and image-to-video modes. For text-to-video, a written description is expanded into motion, composition, and visual detail; for image-to-video, a static image is animated with movement and camera dynamics. Output options include 720p HD and 1080p Full HD, clip durations of 5 or 10 seconds, and multiple aspect ratios spanning landscape, portrait, and square formats suited to different platforms. A notable aspect of the service is that it acts as an aggregator of several underlying generation models. Beyond its own "Seedance" and Seedream models, paid tiers advertise access to third-party models such as Google's Veo 3, OpenAI's Sora 2, and Wan 2.5, letting users swap models per scene. The platform name suggests a connection to ByteDance's Seedance model line, though this site appears to be a third-party wrapper rather than an official ByteDance product. The stated workflow covers choosing a generator, supplying a prompt or image, generating and downloading, then refining motion, color, and timing. Additional creator-oriented features advertised include built-in audio (dialogue and ambience), fast previews before full renders, batch jobs, scene splitting, prompt helpers, an AI video enhancer, and a background remover. The service emphasizes a commercial-use license so output can be used in paid ads, client work, and monetized channels. Pricing is credit-based and tiered across Basic, Professional, and Enterprise plans, billed monthly, annually, or one-time, with credits translating into a monthly video cap. Many of the more advanced perks — access to Veo 3, Sora 2, Wan 2.5, priority queue, no watermark, and priority support — are gated to annual billing. New users receive free credits to try the service. As with most consumer AI video sites, prospective users should weigh the marketing claims against actual output: short clip lengths, credit consumption, and dependence on third-party models mean results and availability can vary. The site's heavy discount countdowns and limited-spot messaging are typical of this category and warrant a trial on free credits before committing to a plan.