# Runway Aleph Canonical page: https://fuser.studio/models/runway-aleph Runway Aleph in Fuser edits existing footage from a text prompt and references: change lighting, objects or style while keeping the camera move. ## Specs | Spec | Value | | --- | --- | | Inputs | Prompt (text), Video, Reference Image (image) | | Output | video | | Aspect ratios | Original, 16:9, 4:3, 3:2, 1:1, 2:3, 3:4, 9:16, 21:9 | | Cost | 772–23,144 credits per run | Rewrite the light, weather, wardrobe or style of footage you already shot while the camera move and the performance stay exactly as filmed Creator: Runway [Re-light a clip](https://app.fuser.studio) ## How Runway Aleph works You bring the footage and the intent. Aleph reads the clip, applies your one-line directive and hands back the same shot, changed only where you asked. ### Upload your source footage Drop in a clip with clean lighting and a stable camera, trimmed to the moment you want to change. ### Direct the edit with a verb Write Add, Remove, Replace, Re-light or Re-style plus the change, and optionally attach a reference image for color and style. ### Pick a frame and render Keep the original framing or choose a new aspect ratio to outpaint, then render the edited clip with its original motion intact. ## What Runway Aleph is good at Aleph edits what is already there: light, wardrobe, props, weather and style, with shadows, reflections and depth following the original camera and performance. ### In-context scene relighting Shift flat daylight to dusk, backlight, or volumetric haze while shadows and specular highlights follow the moving surfaces in your footage. ### Wardrobe and prop swaps Replace garments, textures or handheld props along the moving silhouette, with the original performance and camera path left untouched. ### Object addition and cleanup Erase distractions or insert new objects into live action, with occlusion and depth planes respected so additions sit inside the scene. ### Style transfer with weight Re-style footage as claymation, anime, watercolor or vintage film while keeping realistic depth and the original pacing, with an optional reference image to steer color. ## Made with Runway Aleph A gallery of edits to existing footage: relit product turns, restyled crowds, swapped materials, inserted architecture and a vertical neon sports clip. ### Product finish overhaul with studio softbox relighting ### Archival film restyling across dynamic crowd footage ### Material swap with coherent reflection and motion tracking ### Architectural element insertion and ambient light adjustment ### Atmospheric neon rim lighting on vertical sports action ## What people build with Runway Aleph Editors, VFX artists, fashion and ad teams and social creators reach for it when the take is right but the light, look or frame is not. ### VFX and post-production relighting Fix or reinvent the light on shot footage, from golden hour to dramatic backlight, without rotoscoping and without losing the actor's performance or the camera move. ### Fashion lookbook wardrobe swaps Test colorways, fabrics and accessories on a single shot of a model, then ship multiple lookbook variations from one shoot. ### Short-form video reframing Turn a widescreen clip into a vertical or square cut by outpainting the scene instead of cropping, and prompt what appears in the new space. ### Ad campaign product variations Swap finishes, backdrops and lighting on one product clip to build a family of campaign cuts without reshooting. ### Documentary and archival restyling Give modern reportage footage the grain, tones and texture of another era, or turn it into painted and animated treatments, with the original movement preserved. ## Aleph questions ### Can Aleph generate a video from a text prompt alone? No. Aleph is a video-to-video editing model, so it needs a source video, and it is weak at creating scenes from scratch. Use it to add, remove, replace, re-light or re-style elements in footage you already have. ### What does Aleph do best? Aleph is best at targeted edits that keep the original motion intact. That means adding or removing objects, changing environment and weather, cinematic lighting and time-of-day shifts, full-scene stylization, and reframing or outpainting to a new aspect ratio. ### How should I write a prompt for Aleph? Open with an action verb such as Add, Remove, Change, Replace, Re-light or Re-style, then describe only what should change. Add a preservation line like "keep the person and camera movement unchanged". Long narrative scene descriptions work worse than short directives. ### Can I change the aspect ratio of my clip? Yes. Choose 16:9, 4:3, 3:2, 1:1, 2:3, 3:4, 9:16 or 21:9, or keep Original. Aleph outpaints the extended scene rather than cropping or letterboxing, and your prompt can guide what appears in the new space. ### Can a reference image swap a face or identity? Not reliably. Use the reference image to guide color palette, lighting, texture and style, and say in the prompt how it should interact with the video. Anything that must stay consistent, such as a person, should be in the source video itself. ### What kind of footage and edits cause problems? Compressed, low-resolution or jittery handheld footage gives weaker results. Complex articulated motion, fine detail like hair or foliage, fast camera pans, and precise typography or logo placement can show warping, jitter, smearing or color bleed. Drastic choreography changes also fight the source motion. ## Try Runway Aleph on Fuser Rewrite the light, weather, wardrobe or style of footage you already shot while the camera move and the performance stay exactly as filmed [Re-light a clip](https://app.fuser.studio) ## Related models - [Runway Video](https://fuser.studio/models/runway-video.md) - [Runway Act-Two](https://fuser.studio/models/runway-act-two.md) - [MiniMax H3 Recast](https://fuser.studio/models/minimax-h3-recast.md) - [Kling O3 Edit](https://fuser.studio/models/kling-o3-edit.md) - [Kling O3](https://fuser.studio/models/kling-o3.md) - [Kling 3.0 Video](https://fuser.studio/models/kling-3-0-video.md) Node reference: [Runway Aleph docs](https://docs.fuser.studio/docs/nodes/video/runway-aleph.md) ## More articles - [How to Replace People in a Video With AI: Recast, Kling O3 Edit and Motion Transfer](https://fuser.studio/articles/replace-people-in-video-ai.md) - [How to Edit a Video With Text Prompts: Kling O3 Edit, Gemini Omni, Grok and Luma Tested](https://fuser.studio/articles/edit-video-with-text-prompts.md) - [Best AI Video Editing Models: Same Clip, Same Edits](https://fuser.studio/articles/best-ai-video-editing-models.md)