Animate a single image into a smooth video with Kling 2.1 Standard.
| Parameter | Required | Type | Default | Range / Options | Description |
|---|---|---|---|---|---|
| prompt* | Yes (*) | string | — | — | Scene, motion, and camera description |
| aspect_ratio | No | string | 16:9 | 16:9, 9:16, 1:1, 4:3, 3:4, 21:9, adaptive | Output frame ratio |
| duration | No | integer | 5 | 4–30 (seconds) | Clip length |
| generate_audio | No | boolean | true | true / false | Native synchronized audio |
Billing follows generated video length:
Animate a single image into a smooth video with Kling 2.1 Standard.
Wan 3.0 turns a first-frame image into cinematic video with sound
Generate directed multi-clip videos from prompts with optional audio.
Generate cinematic shots guided by reference images with unified control and realistic motion.
Turn static visuals into smooth motion with Hailuo 2.3 for rapid, realistic video creation.
Seedance 2.5 4K Image to Video: animate stills into 4K motion
Seedance 2.5 1080p Text to video is a ByteDance text-to-video endpoint that renders fixed 1080p clips from a written prompt. It fits final narrative ads, brand stories, and high-res prompt lock-ins.
All share the same prompt-driven path; Seedance 2.5 1080p Text to video locks output at 1080p for sharper finals. Draft cheaper at 480p or 720p, then reuse the winning prompt here.
Seedance 2.5 1080p Text to video accepts prompt, aspect_ratio (including adaptive), duration from 4 to 30 seconds (default 5), and generate_audio. Resolution is fixed at 1080p.
Yes. Prototype in the RunComfy model UI, then call the same Seedance 2.5 1080p Text to video template through the RunComfy API with matching parameters. Generations consume usd / credits on both paths.
Seedance 2.5 1080p Text to video is billed at $0.764 per second of generated video. Longer durations scale linearly with the length you select.
Use Seedance 2.5 1080p Text to video when you have no still to lock identity and want a full scene from text. Prefer image-to-video when a specific frame or product photo must stay consistent.
RunComfy is the premier ComfyUI platform, offering ComfyUI online environment and services, along with ComfyUI workflows featuring stunning visuals. RunComfy also provides AI Models, enabling artists to harness the latest AI tools to create incredible art.





