Runway Gen-3
Runway Gen-3 Alpha is Runway's AI video model, producing high-fidelity cinematic video from text or images with motion brush control and strong temporal consistency.
June 18, 2026
Runway Gen-3 Alpha is a text-to-video and image-to-video AI model by Runway, known for high-fidelity cinematic output, motion brush control, and strong temporal consistency.
How it works
Runway Gen-3 uses a diffusion-based architecture optimized for video generation. It takes text prompts or images as input and generates video clips with attention to cinematic quality — realistic lighting, camera motion, and subject coherence. The model's motion brush feature lets users paint regions of a frame to control where motion occurs, providing spatial control over the generated video.
Why it matters
Runway Gen-3 was among the first widely available AI video models to deliver production-quality output with fine-grained control. Its motion brush tool was a breakthrough in giving creators precise, intuitive control over which parts of a scene animate — a capability that was previously only available through complex prompting or post-production.
Key features
- Motion brush — paint regions to control where motion occurs in the video.
- Cinematic aesthetics — strong default quality for film-like output.
- Image-to-video — animate still images with realistic motion.
- Camera control — specify camera movements like pan, zoom, and dolly.
In eaxy
Eaxy's video pipeline incorporates best-fit models and techniques. While Runway Gen-3 pioneered motion brush control, eaxy provides similar spatial motion control through prompt-driven direction, and uses proven models like Kling 3 for reliable, high-quality video generation.
Related terms
Perguntas frequentes
What is Runway Gen-3?+
Runway Gen-3 Alpha is Runway's AI video generation model. It produces high-quality cinematic video from text prompts or images, featuring improved fidelity, motion brush control for region-specific animation, and strong temporal consistency.
How does Runway Gen-3 compare to Kling 3?+
Both produce high-quality AI video. Runway Gen-3 is known for its motion brush tool and cinematic aesthetics, while Kling 3 is known for realistic camera motion and image-to-video quality. Eaxy selects the best model for each task.
Can Runway Gen-3 do image-to-video?+
Yes. Runway Gen-3 supports both text-to-video and image-to-video generation. You can upload a still image and the model animates it with cinematic motion.
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