Runway Gen-4.5 is the video-generation generation that superseded the Gen-3 write-up in this catalog. This card is a current-generation snapshot as of 21 Aug 2026. Confirm the model name and clip limits in the Runway product before you promise a workflow.
Catalog note
Video models churn. The Gen-3 card is marked outdated and kept for history. Do not teach Gen-3 as current.
What operators should know
- Text-to-video and image-to-video remain the jobs. Cinematic B-roll is still a draft, not a shoot replacement, until a human has watched the clip.
- Length, resolution, and watermark rules are plan-dependent. Read the current docs.
- Do not chain "generate then auto-post" without a gate. Fluency of motion is not brand safety.
Honest limits
- Physics, hands, readable type, and continuity across shots still fail in ordinary ways.
- A research ranking is not your customer's taste.
- We do not publish invented clip-download counts.