Compare AI models
Pick any two and watch the same prompt rendered by both.
Runway Gen-3
Videoby Runway
Gen-3 pairs excellent video quality with the deepest creative toolset — motion brush, keyframes, and video-to-video make it the most controllable pick.
Full review →
Stable Diffusion 3.5
Imageby Stability AI
Stable Diffusion 3.5 anchors the biggest open-source image ecosystem — endless models, LoRAs, and tools you can run yourself.
Full review →| Metric | Runway Gen-3 | Stable Diffusion 3.5 |
|---|---|---|
| Quality | 8.9✓ | 8.5 |
| Speed | 8.7✓ | 8.4 |
| Ease of use | 9.2✓ | 7.2 |
| Value | 8.6 | 9.4✓ |
| Max resolution | 1080p | 2048px |
| Pricing | Free trial / from $12/mo | Open weights / API from $0.03 |
Runway Gen-3
- +Deep control: motion brush, keyframes, director mode
- +Fast iteration and a strong web editor
- +Reliable image-to-video
- +Predictable credit-based pricing
- −Slightly behind Sora on pure realism
- −Credits can burn quickly at high resolution
- −Long sequences need manual stitching
Stable Diffusion 3.5
- +Open weights, run locally
- +Massive ecosystem of LoRAs/tools
- +Total control, no fees
- −Needs setup & a GPU
- −Base output less polished than Midjourney
Same prompt, both models
Identical prompt run through Runway Gen-3 and Stable Diffusion 3.5. Watch them side by side.
“A neon-lit street at night, slow forward dolly, rain-slick reflections, cinematic”
“Close-up portrait turning toward camera, soft key light, shallow depth of field”
“Aerial drone gliding over a landscape at golden hour, long shadows”
“Product on a reflective surface, slow rotation, studio gradient light”