video model by Runway
Runway Aleph 2.0
Edit footage by prompt or keyframes, and transfer real performances
What is Runway Aleph 2.0?
Runway Aleph 2.0 is a video-to-video model from Runway. Instead of generating a shot from scratch, it changes footage you already have. This page also covers Runway Act-Two, Runway's motion transfer model, where a character image or video performs the face and, optionally, the body movement of a reference performance clip. Together they bring post-production changes and real acting into Cinemagiq.
Runway Aleph 2.0 takes a source clip of 2 to 30 seconds, up to 32 MB, and a prompt, up to 5 keyframe images, or both. The output length follows the clip. Runway Act-Two takes no prompt: you give it a character image or video and a performance clip of 3 to 30 seconds, then set body control and expression intensity. It offers ratios from 21:9 to 9:16. Neither model generates new sound.
Use Runway Aleph 2.0 when a take is close but not right: change the time of day, swap a costume or reshape the environment without regenerating the shot. Use Runway Act-Two when performance matters more than prompts: act the scene yourself, then let your character deliver it. For prompt-based edits of shorter clips, Kling O3 Video Edit and Happy Horse Video Edit are alternatives.
What Runway Aleph 2.0 can do in Cinemagiq
Straight from the model list Cinemagiq runs today.
| Variant | What drives the shot | Length | Resolution | Sound |
|---|---|---|---|---|
| Runway Aleph 2.0Video-to-video editing with keyframe image guidance | An existing clip plus a prompt | From the input clip, up to 30 s | Model default | None |
| Runway Act-TwoMotion transfer: character + performance video | A character plus a performance clip | From the input clip, up to 30 s | Model default | None |
Strengths
- Edits existing footage instead of regenerating it
- Prompt and keyframe image guidance
- Works on clips up to 30 seconds
- Runway Act-Two transfers a real facial and body performance
Best for
- Restyling or fixing a take in post
- Changing the environment around a performance
- Animated characters driven by a real actor
Watch-outs
- Needs a source clip: Runway Aleph 2.0 is not a from-scratch generator
- Source clips are limited to 32 MB
- Runway Act-Two takes no prompt, so the performance clip drives the result
Prompt tips for Runway Aleph 2.0
- In Runway Aleph 2.0, describe only the change, such as make it night with wet streets, and leave the rest of the clip as shot.
- Add a keyframe image to show the target look when words are not enough, for example a new costume or set dressing.
- Keep source clips under 32 MB and between 2 and 30 seconds. Export a shorter or lighter version first if needed.
- For Runway Act-Two, film the performance with the face clearly visible and well lit, and turn on body control only when the body movement should transfer too.
How to use Runway Aleph 2.0 in Cinemagiq
- 1Open the Generation Studio in your project and switch to the Video tab.
- 2Pick Runway Aleph 2.0 in the AI Model picker. Each card says what drives the result and its limits.
- 3Write the prompt, and add a First Frame, Last Frame or reference images where the model takes them.
- 4Generate. The button shows the token cost before you start.
- 5Find every take in the Asset Hub under All Generations, and add the one you keep to its shot on the Production Board.