Grok Video Editor Online

The Grok Video Editor changes an existing 1–30 second MP4 or MOV with one text instruction. It opens with Grok Imagine and uses the same model selector, reference controls, output settings, credit estimate, Original/Edited review, recent results, and download workflow as the AI Video Editor. Exact duration, resolution, audio, and reference support depend on the selected model.

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Edit an existing clip with Grok Imagine

Grok Video Editor for Prompt-Based Video Edits

The Grok Video Editor changes an existing 1–30 second MP4 or MOV with one text instruction. It opens with Grok Imagine and uses the same model selector, reference controls, output settings, credit estimate, Original/Edited review, recent results, and download workflow as the AI Video Editor. Exact duration, resolution, audio, and reference support depend on the selected model.

This independent workflow is not affiliated with or endorsed by xAI, Grok, or X. Use only footage you have permission to edit, and review every frame before publishing.

Open the Grok editor
Grok Video Editor input and output specifications
InputMP4 or MOV upload; completed History video
Source length1–30 seconds; model-dependent
Upload sizeUp to 50MB
Default modelGrok Imagine video edit
Output480p to 4K; model-dependent
Base cost65 credits/s
Reference imageAvailable on supported models
UpdatedJuly 28, 2026

Motion review examples

Prompt-based Grok edit examples and review checks

Use these Grok Video Editor examples to inspect motion and portrait details after a prompt-based edit. They are evaluation benchmarks, not a claim that one instruction or one model will reproduce the same footage.

Review a style change across the complete motion

5-second review example · Published July 26, 2026

This Grok Video Editor motion example is a review benchmark for a prompt that changes visual treatment. It is not a promise that one prompt will reproduce the same result. Inspect whether the subject design, camera path, timing, composition, and background geometry remain readable from the first frame to the last.

Example instruction: “Apply a clean anime treatment while preserving the subject design, motion timing, camera path, composition, and important scene details.”

Inspect portrait stability after repair and relighting

5-second review example · Published July 26, 2026

This Grok Video Editor portrait example shows the details to check after a repair or relighting instruction. Review facial identity, blinking, mouth shape, skin texture, hair edges, lighting direction, and background stability. A single poster frame cannot reveal temporal drift, so play the complete output.

Example instruction: “Repair unstable facial details and relight the portrait naturally while preserving identity, expression timing, head movement, and camera framing.”

Core capabilities

What can the Grok Video Editor change?

The Grok Video Editor is a focused video-to-video workflow: bring an existing short clip, describe one visual revision, start with Grok Imagine or choose another compatible edit model, and judge the result against the source.

01

Start from an upload or a saved video

Upload a rights-cleared MP4 or MOV up to 50MB, or sign in and choose an eligible completed result from Video AI History. The workbench accepts source clips from 1 to 30 seconds and reads duration and frame dimensions before choosing a compatible model.

Use Upload for footage from your device and History when the source came from a Grok image-to-video or text-to-video workflow on this site.

02

Describe one visible change with a prompt

State the requested visual change first, then name the details that must stay stable: subject identity, action, timing, framing, camera movement, lighting, object scale, and scene geometry. One focused instruction is easier to review than several unrelated transformations in one run.

A useful Grok edit prompt separates the change from the preservation rules so the result has a clear pass-or-fail test.

03

Start with Grok Imagine or choose another edit model

The Grok Video Editor opens with Grok Imagine selected. The same model menu as the AI Video Editor also exposes compatible Wan and Seedance options when a source needs a different duration range, reference image, audio behavior, aspect-ratio control, or output resolution. The exact estimate appears before generation.

Keep Grok Imagine for a focused Grok edit, or compare the model facts in the selector before changing the workflow settings.

04

Compare the source and result before download

The source remains available while the asynchronous edit runs. When the result finishes, switch between Original and Edited, play the entire clip, and check faces, hands, text, reflections, object edges, background structure, and motion cadence before downloading.

Treat the output as a reviewable edit candidate, not as an automatically approved final asset.

Four-step workflow

How to use the Grok Video Editor

The Grok Video Editor works best when the requested change is separate from the rules that protect the source. Keep each run narrow enough that the completed clip has a clear review decision.

  1. 1

    Choose a 1–30 second source clip

    Upload an MP4 or MOV up to 50MB, or choose an eligible completed video from History after signing in. The Grok Video Editor validates the duration and reads the source dimensions before enabling compatible models.

  2. 2

    Write the change and preservation rules

    Describe one primary visual change in at least five characters. Follow it with the subject, motion, timing, camera, lighting, framing, and scene details that should remain stable throughout the output.

  3. 3

    Confirm the model and output settings

    Grok Imagine is selected by default. Keep it for a Grok edit, or choose another compatible model when the source needs different duration, resolution, reference-image, audio, aspect-ratio, or advanced controls. The workbench calculates the current cost before submission.

  4. 4

    Run, compare, and download

    Start the Grok video-to-video edit, wait for the saved result, then use the Grok Video Editor to play both Original and Edited from beginning to end. Narrow the prompt for another pass or download the approved result without an added visible site watermark.

Model boundaries

Grok Imagine defaults and model-dependent limits

The Grok Video Editor opens with Grok Imagine, then uses the same model selector as the AI Video Editor. The controls update for each model's supported duration, resolution, aspect ratio, reference image, audio, and advanced settings.

Current Grok Imagine video edit model facts
DecisionCurrent optionHow to use it
Source duration1–8sTrim a longer video before upload or use the multi-model editor.
Resolution480p/720pTest at 480p; move to 720p after the prompt direction works.
Aspect ratioSame as sourceThe Grok Video Editor keeps this ratio, so prepare the intended horizontal, vertical, or square framing before upload.
Reference imageNot supportedThe Grok Video Editor uses text only; choose the multi-model editor when the edit needs a reference image.
Credit estimate65 credits/sReview the complete estimate shown before starting the edit.

Keep Grok Imagine selected for the branded Grok workflow. If the source or output requires another capability, compare the live model facts in the selector or read the model-neutral AI Video Editor guide before changing models.

Focused edit scenarios

Where does prompt-based Grok video editing fit?

Use the Grok Video Editor when the source motion is already useful and one visible decision needs to change. Generate a new scene when the starting footage does not contain the action or composition you need.

Restyle a short social clip

A social creator can upload a short vertical clip to the Grok Video Editor, request a new visual treatment, and preserve the subject, action timing, camera path, and 9:16 framing. The expected result is a reviewable style variation rather than a newly generated scene.

Change a background for a campaign variation

A marketer can bring an approved product or presenter shot to the Grok Video Editor, replace the environment through a prompt, and require the person, object scale, reflections, movement, and lighting direction to remain coherent. Check the full clip before using it in an ad.

Repair visible artifacts in an AI draft

An AI creator can bring a completed short video from History into the Grok Video Editor, identify one unstable area, and ask for a focused repair while preserving composition and motion. If the scene itself needs to be recreated, return to the generator instead.

Limits and quality control

What should you check before publishing?

The Grok Video Editor can make a useful creative variation, but prompt-based editing can also introduce frame-to-frame drift. Review the complete result at normal speed and frame by frame when the asset carries identity, product, text, or brand requirements.

It is not a timeline editor

The Grok Video Editor applies one prompt to a complete short clip. Use a conventional timeline editor afterward when delivery needs frame-accurate cuts, caption timing, transitions, multiple tracks, or multi-scene sequencing.

The source must fit the selected model

The workbench accepts 1–30 second MP4 or MOV files up to 50MB, but each model has its own duration, resolution, aspect-ratio, reference-image, and audio limits. Grok Imagine accepts 1–8 second sources and produces 480p or 720p output at the source aspect ratio.

Controls change with the model

Grok Imagine uses text-only visual guidance, while compatible Wan and Seedance options can expose reference-image, audio, aspect-ratio, or advanced controls. Recheck the visible controls and credit estimate after every model change.

Prompt edits can still drift

Grok Video Editor results may change identity, hands, text, logos, fine geometry, reflections, and background details across frames. Higher resolution does not repair a weak instruction, so test the direction at 480p before spending more credits.

Verifiable workflow facts

What does the workflow verify?

The Grok Video Editor uses visible input validation and cost calculation before generation, then keeps the source and saved result available for comparison. These checks reduce avoidable submissions without claiming that an AI output is automatically correct.

Before every run

Visible credit estimate

The Grok Video Editor calculates the edit cost from the source duration and selected resolution before submission, so the spending decision is visible before processing starts.

1–30s

Model-aware source validation

The Grok Video Editor reads the clip duration and dimensions in the browser, and the server validates ownership, file type, file size, duration, resolution, and selected-model compatibility again.

Original and Edited

Complete result review

The Grok Video Editor keeps the source available, saves the completed result to History, and lets the user compare both versions before downloading.

Frequently asked questions

Grok Video Editor FAQ

These answers separate editing from generation, state the supported inputs and outputs, and clarify the relationship between this independent workflow and the official Grok product.

Can Grok edit an existing video?

Yes. The Grok Video Editor opens with Grok Imagine selected and applies a text instruction to an uploaded or saved clip. Grok Imagine currently accepts 1–8 second sources; the shared model menu can expose other compatible edit models for different source and output requirements.

How do I use the Grok Video Editor with a prompt?

Upload a short source video, describe one visible change, and state what must remain stable. For example, replace a studio background while preserving the presenter, action timing, camera movement, lighting direction, and framing, then compare the complete original and edited clips.

What is the difference between Grok video editing and generation?

Grok video editing starts with an existing clip and revises it. The Grok Video Generator starts with text and creates a new scene, while Grok Image to Video starts with a still image and adds motion. Choose the workflow that matches the input you already have.

What formats, lengths, and resolutions are supported?

The editor accepts MP4 or MOV files up to 50MB and source durations from 1 to 30 seconds. Exact duration and output options depend on the model. Grok Imagine currently accepts 1–8 second sources, preserves the source aspect ratio, and offers 480p or 720p output.

Is this the official xAI Grok video editor?

No. This is an independent online workflow that provides access to a supported Grok Imagine video edit model and is not affiliated with or endorsed by xAI, Grok, or X. Model availability, pricing, and capabilities can change, so check the current workbench before starting an edit.

After the edit

Choose the next video workflow

Leave the Grok Video Editor only after the edited motion passes review. Then choose the next tool for a new scene, a longer ending, or a larger output frame while keeping generation, timing, and delivery as separate decisions.

Generate a new Grok scene

Move from the Grok Video Editor to text-to-video when the source clip does not contain the action or composition you need.

Continue

Extend the approved ending

Continue the scene by 6 or 10 seconds after the Grok Video Editor result is approved.

Continue

Upscale the approved result

Increase dimensions only after the Grok Video Editor result passes motion, identity, text, and edge review.

Continue

Start a prompt-based Grok video edit

The Grok Video Editor accepts a 1–30 second MP4 or MOV, with exact limits set by the selected model. Write one precise change, review the visible controls and credit estimate, then compare the complete edit with the source before downloading.

Edit a video with Grok