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Runway ML
Runway ML Review: AI Video Editing Tool to Remove or Replace People from Videos (2026)
Our take
In-Depth Review
Our detailed analysis of Runway ML — features, performance, and real-world testing.
Feature-by-Feature Breakdown
We tested each feature individually. Click any card to see inputs, outputs, and our observations.
Person Removal using InpaintStrong9.2/10▾
Feature tested: Person Removal using Inpaint
Result: Passed (9.2/10)
Verdict: Strong
Expected behavior: Runway ML Inpaint tool allows users to brush over a person in a video frame — AI then removes that person and fills the background across all frames automatically.
Test case: Video file → Video file
Input type: Video file
Input used: Input artifact (Video file): video mp4 - Two women working and discussing at a office desk. Task: Remove person completely — 6781904-uhd_2160_3840_30fps.mp4
Observed output: Output artifact (Video file): video mp4 - person removed from simple background — Remove from Video - remove bak side girl (1).mp4
Input artifact: Input artifact (Video file): video mp4 - Two women working and discussing at a office desk. Task: Remove person completely — 6781904-uhd_2160_3840_30fps.mp4
Output artifact: Output artifact (Video file): video mp4 - person removed from simple background — Remove from Video - remove bak side girl (1).mp4
What changed: Video file transformed into Video file
Why it matters / Conclusion: Runway ML produces the highest quality person removal output. Inpaint tool tracks person movement across frames automatically. Complex backgrounds handled better than any other tested tool. Free credits limited — paid plan needed for extended use.
Runway ML Inpaint tool allows users to brush over a person in a video frame — AI then removes that person and fills the background across all frames automatically.
Erase and ReplaceStrong9.2/10▾
Feature tested: Erase and Replace
Result: Passed (9.2/10)
Verdict: Strong
Expected behavior: Runway ML Erase and Replace allows users to remove a person and optionally fill the space with AI-generated content or a different person using a text prompt.
Test case: Video file → Video file
Input type: Video file
Input used: Input artifact (Video file): still-person.mp4 — still person in frame. Task: Replace person with different person using text prompt. — 6781904-uhd_2160_3840_30fps-1.mp4
Observed output: Output artifact (Video file): person replaced using Erase and Replace — Gen-4 Aleph - remove back side girl and add boy.mp4
Input artifact: Input artifact (Video file): still-person.mp4 — still person in frame. Task: Replace person with different person using text prompt. — 6781904-uhd_2160_3840_30fps-1.mp4
Output artifact: Output artifact (Video file): person replaced using Erase and Replace — Gen-4 Aleph - remove back side girl and add boy.mp4
What changed: Video file transformed into Video file
Why it matters / Conclusion: Erase and Replace is unique to Runway ML among all tested tools. Replacement quality depends on prompt quality and video complexity. Best results on simple backgrounds with still subjects.
Runway ML Erase and Replace allows users to remove a person and optionally fill the space with AI-generated content or a different person using a text prompt.
Use Case Track Record
Pricing & Access
Plans as of March 2026. Tested on the free plan
Pricing as of April 2026.
Is This Right For You?
A side-by-side guide based on our hands-on testing.
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