FLUX vs Runway Gen-3 Image — Head-to-Head Comparison
Quick verdict: FLUX edges ahead
with a 4.7/5 rating vs 4.4/5.
See the full breakdown below.
Feature Comparison
| Feature | FLUX | Runway Gen-3 Image |
|---|---|---|
| Three model tiers: pro API, dev research, schnell commercial | ✓ | — |
| State-of-the-art photorealism and portrait quality | ✓ | — |
| Superior long prompt comprehension | ✓ | — |
| Hybrid transformer architecture using Flow Matching | ✓ | — |
| Available on Hugging Face, Replicate, and fal.ai | ✓ | — |
| LoRA training support via community tools | ✓ | — |
| Fast inference with schnell variant in 1-4 steps | ✓ | — |
| FLUX.1 dev open weights for research use | ✓ | — |
| Improved text rendering over previous open models | ✓ | — |
| Growing fine-tune ecosystem on Civitai | ✓ | — |
| Gen-3 Alpha model with cinematic quality output | — | ✓ |
| Direct image-to-video animation pipeline | — | ✓ |
| Camera movement controls for cinematographic prompting | — | ✓ |
| Style reference for consistent visual treatment | — | ✓ |
| Inpainting and outpainting tools | — | ✓ |
| Green screen and background replacement | — | ✓ |
| Motion brush for selective animation regions | — | ✓ |
| Collaboration features for creative teams | — | ✓ |
| Act-One character performance capture | — | ✓ |
| API access for production pipeline integration | — | ✓ |
Pricing Comparison
| Plan | FLUX | Runway Gen-3 Image |
|---|---|---|
| Starting price | Free | Free |
| Free plan | Yes | Yes |
| Pricing model | Freemium | Freemium |
Which Should You Choose?
Choose Runway Gen-3 Image if...
Hollywood-grade AI image generation from the creators of Gen-2 video
Visit Runway Gen-3 Image