AI Video Extender for Continuing Existing Clips

Extend the ending of a short MP4 without starting a new video from a still frame. Upload the footage, optionally describe the next action, and add 2–10 seconds with Grok Imagine Video Extension.

Continue the Shot You Already Have

Grok reads the end of the uploaded clip and generates new footage from its final frame. The prompt describes the next action, camera move, or narrative beat.

1. Upload the source clip

Choose a continuous MP4 from 2 to 15 seconds and no larger than 32 MB. H.264, H.265, and AV1 are the codecs documented by the provider.

2. Describe the next moment

Write an optional prompt focused on what happens after the ending. When the field is empty, the tool uses a continuity instruction that asks the model to preserve subject, camera, lighting, and style.

3. Add 2–10 seconds

Choose any whole-second duration from 2 through 10. The result is one MP4 containing the original footage followed by the generated continuation.

Write Prompts for Continuity, Not a New Scene

The strongest extension prompts describe one next action while preserving the visual logic already visible in the source clip.

Continue subject movement

Example: “The cyclist keeps moving forward as the camera tracks beside them, maintaining the same speed and late-afternoon light.”

Continue a camera move

Example: “The camera slowly pulls back to reveal more of the room while the subject remains centered and the warm practical lighting stays unchanged.”

Introduce one next beat

Example: “The product rotates another quarter turn and comes to rest while the soft studio reflections continue across the surface.”

Make Short Clips More Useful Without Rebuilding Them

Extension is useful when the current shot ends too early but its subject, camera direction, and look are already worth preserving.

Longer social edits

Create extra visual time for a voiceover, caption, transition, end card, or platform-specific pacing without repeating the original clip.

Product reveal continuation

Continue a rotation, camera slide, lighting reveal, or simple product action when a generated or filmed shot needs a longer finish.

Narrative bridge shots

Add a natural next beat that can connect the source footage to another scene in a trailer, concept film, storyboard, or mood piece.

FAQs

AI Video Extender FAQ

Current model limits and practical extension guidance.

The current Grok Imagine Video Extension integration adds any whole-second duration from 2 through 10.

No. This model continues from the last frame, so the current tool adds new footage after the existing ending.

The model does not expose a resolution selector for extension. Higher-quality input generally produces a stronger continuation, and the provider recommends 720p source footage as a practical baseline.

No. If you leave it empty, Styvid supplies a continuity-focused instruction. A specific prompt is recommended when one clear action should happen next.

No generative continuation is guaranteed to preserve every fine detail. Cleaner continuous footage, one main subject, limited cuts, and a focused prompt improve the chance of visual continuity.

Continue the Video Past Its Current Ending

Upload a short MP4 and add a prompt-guided continuation after its ending.

Extend My Video