What Makes Aleph Revolutionary
In-Context Video Editing
Edit existing footage with comprehensive transformations—add, remove, and modify objects, change lighting, and generate new angles, all while preserving context.
Multi-Task Visual Generation
Perform a wide range of editing tasks in a single model—from environment changes to VFX additions, style modifications to object transformations.
Precise Edge Detection
Automatically isolate subjects with surgical precision, preserving every detail from hair strands to transparent fabrics with state-of-the-art edge detection.
Conversational Workflow
Work with Aleph through natural language prompts in Chat Mode, making complex post-production changes accessible through simple conversation.
Model Overview
Runway Gen-4 Aleph, released on July 25, 2025, represents a groundbreaking advancement in AI video editing technology. As part of Runway's next-generation Gen-4 series, Aleph is specifically designed as an in-context video model that sets a new frontier for multi-task visual generation. Unlike traditional video generation models, Aleph specializes in editing and transforming existing footage with unprecedented precision and creative control.
Built on Runway's cutting-edge AI research, Aleph enables creators to perform comprehensive video transformations that would traditionally require complex VFX workflows, masking, and keyframes. From changing environments and seasons to adding cinematic effects and generating new camera angles, Aleph makes professional-grade video editing accessible through simple text prompts. The model excels at preserving fine details while making dramatic changes, offering a new way to edit, transform, and generate video content.
Key Features
Environment Transformation
Transform ordinary footage into professional-grade visual effects by changing environments, locations, seasons, and time of day. Add rain, snow, fog, or completely reimagine the setting.
- Weather effects (rain, sandstorm, snow)
- Location changes (city, desert, forest)
- Seasonal transformations
Object Manipulation
Add, remove, replace, or transform objects within your footage with precision. Edit specific subjects, objects, or environments without affecting the rest of the scene.
- Object addition and removal
- Subject replacement
- Selective editing
Multi-Angle Generation
Generate new camera angles and perspectives of existing scenes. Create coverage shots, reverse angles, and alternative viewpoints from a single piece of footage.
- New camera angles
- Reverse perspectives
- Coverage generation
Lighting & Style Control
Modify lighting sources, change the overall style, and apply artistic transformations. Re-light scenes, apply filters, or completely restyle your footage with reference images.
- Re-lighting with reference images
- Style transfer and filters
- Color grading and mood changes
VFX Integration
Add professional visual effects to your footage without complex VFX software. Create effects that seamlessly integrate with live action, animated, and existing VFX content.
- Fast, controllable VFX generation
- Seamless integration with footage
- No masking or keyframes required
Reference Image Support
Use reference images to guide transformations. Influence color palettes, lighting setups, styles, and more by providing visual examples alongside your video input.
- Color and style references
- Lighting guidance
- Visual example-based editing
Technical Specifications
Video Specifications
| Maximum Duration | 5 seconds |
| Resolution Handling | Auto-crop to supported |
| Default Input | First 5 seconds |
| Upscaling | Up to 4K |
Model Details
| Model Name | Gen-4 Aleph |
| Release Date | July 25, 2025 |
| Model Type | In-Context Video |
| Primary Use | Video-to-Video Editing |
Capabilities
| Object Editing | |
| Environment Change | |
| Angle Generation | |
| Reference Images |
Use Cases
Film & Video Production
Generate coverage shots, create alternative angles, and add professional VFX to existing footage. Perfect for indie filmmakers and production studios looking to expand creative possibilities.
Post-Production & VFX
Eliminate the need for complex masking, rotoscoping, and keyframing. Add weather effects, change environments, and create seamless VFX integrations with simple text prompts.
Advertising & Marketing
Quickly adapt existing footage for different markets, seasons, or campaigns. Change locations, add products, or modify environments to create multiple variations from a single shoot.
Music Videos
Transform performance footage with creative environments, stylistic effects, and visual transformations. Create surreal, artistic videos without expensive set design or location scouting.
Content Creation
Enhance social media content, YouTube videos, and online courses with professional-looking effects. Add cinematic flair, change backgrounds, or create eye-catching transformations.
Broadcast & Streaming
Quickly adapt archival footage, create alternative versions of scenes, or add production value to existing content. Perfect for documentaries, news, and streaming platforms.
Model Limitations
Duration Constraints
Aleph is currently limited to 5-second video segments per generation. Longer videos require multiple generations and careful stitching, which may affect continuity across segments.
Reference Image Consistency
While reference images can guide color, style, and lighting, subjects and objects from reference images may not maintain perfect consistency. Elements requiring strict consistency should be included in the input video.
Complex Scene Transformations
Extremely complex scenes with multiple subjects, intricate movements, and detailed backgrounds may show reduced accuracy in transformations. Simpler scenes generally yield better results.
Iterative Refinement Required
Achieving the perfect result often requires multiple iterations and prompt refinements. The conversational workflow helps, but complex edits may need several attempts to match your vision precisely.
Frequently Asked Questions
What is Runway Gen-4 Aleph?
Runway Gen-4 Aleph is a state-of-the-art in-context video model designed for editing and transforming existing footage. Unlike traditional video generation models, Aleph specializes in video-to-video transformations, allowing you to add, remove, and modify elements while preserving context and detail.
How do I access Gen-4 Aleph?
Gen-4 Aleph is available on SharkFoto.com, where you can easily edit and transform videos using this powerful model. Visit SharkFoto to start creating professional-grade video edits with Gen-4 Aleph today.
What types of edits can Aleph perform?
Aleph can perform a wide range of edits including: changing environments and weather, adding or removing objects, generating new camera angles, modifying lighting and style, adding VFX, replacing subjects, and transforming locations. All through simple text prompts.
How long can my input videos be?
Aleph processes up to 5 seconds of video per generation. By default, it uses the first 5 seconds of your uploaded video. For longer videos, you can select which 5-second segment to use with the trimming interface, and results can be upscaled to 4K resolution.
Can I use reference images with Aleph?
Yes! You can upload reference images alongside your video to guide color palettes, lighting, and style. Use prompts like "Re-light the video using the lighting from the image" or "Restyle the video using the style from the image" to leverage reference images effectively.
What's the best way to prompt Aleph?
Keep prompts simple and clear. Use action verbs (add, remove, change, replace, re-light, re-style) followed by a description of the target transformation. For example: "Add rain to the scene" or "Change the location to a desert environment." Chat Mode is recommended for iterative refinement.