omnihuman/v1.5
Create lifelike avatars via multimodal synthesis with Omnihuman 1.5.
LTX 2 Fast Image-to-Video (Fast I2V) is the accelerated engine designed specifically for fast image-to-video animation. It takes an input image and a prompt to generate motion clips in seconds. This mode is essential for creators who rely on fast image-to-video animation to iterate on movement, effects, and scene transitions without the longer wait times of Pro mode.
image_url sets the visual foundation (subject, color, composition).prompt, optimized for fast image-to-video animation.Use Fast I2V as your creative sandbox:
1) Upload an image and generate multiple fast image-to-video animation variations.
2) Choose the clip with the best movement.
3) Send it to Retake to slow it down, change timing, or fix artifacts: LTX 2 Retake Video
image_url (required): The starting static image.prompt (required): Instructions for how the image should move.duration: 6s to 20s (longer durations restricted to 1080p/25fps).resolution: 1080p (recommended for speed), 1440p, 2160p.aspect_ratio: 16:9.fps: 25 or 50.generate_audio: true/false (default true).Create lifelike avatars via multimodal synthesis with Omnihuman 1.5.
Swap regions in a video using a mask, text, or reference image.
Render fluid, stylized scenes with fast, frame-consistent output
Make fast, realistic videos from text or images at a low cost.
LTX 2 retake video modifie the video by the prompt.
AI-driven tool for seamless object separation and smooth video compositing.
Speed. This tool is built for fast image-to-video animation, enabling you to iterate on motion concepts, test camera moves, and generate previews in a fraction of the time required for high-fidelity rendering.
Fast mode generally preserves the core subject and composition, but it prioritizes fast image-to-video animation speed over pixel-perfect identity retention. For critical identity preservation (e.g., specific faces), Pro Image-to-Video is recommended.
It is significantly faster, especially at 1080p resolution. This reduced latency makes fast image-to-video animation feasible for running multiple experimental generations to find the perfect motion before scaling up.
Yes. Fast image-to-video animation is great for content where motion and vibe are more important than 4K texture detail. Many users find the 1080p/50fps output perfect for Instagram Reels, TikToks, and other mobile-first platforms.
If you like a motion generated in Fast mode but want to tweak it, you can send your fast image-to-video animation output directly to LTX 2 Retake Video to refine it without starting from scratch.
Negligibly. The audio generation model is efficient and runs in parallel, complementing the fast image-to-video animation process. We recommend keeping generate_audio enabled (default) to get a complete audiovisual preview.
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.