Plain-English Summary
Runway’s advanced video model for realistic motion, prompt adherence, and cinematic visual generation.
Runway Gen-4.5
Runway’s advanced video model for realistic motion, prompt adherence, and cinematic visual generation.
Runway Gen-4
Video
GA
Open weights: No
API: Yes / platform dependent
Technical Notes
Proprietary generative video model emphasizing temporal consistency, motion quality, visual fidelity, and instruction following.
Best For
Advertising, film concepts, cinematic clips, creative video production
Watch Out For
Closed platform; generation cost, duration, and editability can limit production use.
Model Specs
- Maker
- Runway
- Country
- USA
- Family
- Runway Gen-4
- Type
- Video
- Release date
- 2025-12-01
- Date confidence
- Exact
- Status
- GA
- Context window
- Varies
- Max output
- Not listed
- Parameters
- Not disclosed
- Active parameters
- Not disclosed
- Architecture
- Proprietary video generation model
- Reasoning
- Visual instruction planning
- Tool calling
- Runway platform tools
- Structured output
- No
- API available
- Yes / platform dependent
- Open weights
- No
- Self-hostable
- No
- License
- Proprietary
- Inputs
- Text, image
- Outputs
- Video
- Approx. price
- See provider pricing
- How to access
- Provider website
- Model / API ID
- gen-4.5
- Knowledge cutoff
- Not publicly disclosed
- Fine-tuning
- Prompts, references, platform controls
- Completeness
- 81 %
- Verified
- Jul 18, 2026
- Snapshot date
- Jul 18, 2026
- Source
- Official source