> For the complete documentation index, see [llms.txt](https://docs.chatvideopro.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.chatvideopro.com/features/studio/reframe.md).

# Reframe

Reframe changes a video clip's aspect ratio while AI fills the new edges to match the scene, making it easy to repurpose footage for any platform.

{% hint style="info" %}
**Reframe runs on Luma Ray 3.2** for sharper output at lower cost. Both quality tiers support clips up to **30 seconds** — Draft renders at 540p, Final at 720p. The original clip is kept intact — the AI generates new content along the expanded edges to fill the new aspect ratio. Use manual **reposition and zoom** controls in Studio or the chat quick-modal when you want to fine-tune subject placement.
{% endhint %}

**When to Use Reframe**

Reframe is the right tool any time your footage needs to live in a different aspect ratio than it was shot in — and you want the new frame to look complete, not cropped.

* **Repurpose landscape content for vertical social** — convert 16:9 footage to 9:16 for TikTok, Instagram Reels, and YouTube Shorts without losing the subject
* **Adapt footage to platform specs** — quickly reframe a single master clip for every delivery format your project requires
* **Explore creative framing without reshooting** — try a square, ultra-wide, or portrait ratio to see how the shot holds in a new aspect
* **Reframe generated Studio content on the spot** — use the quick action button on any Studio result card to immediately repurpose what you just created

***

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**Starting a Reframe**

There are three entry points — all lead to the same workflow.

* **From Studio** — navigate to Studio → Post-Production → Reframe, then load a clip
* **From a chat clip** — click the Transform icon on any video clip thumbnail and choose **Reframe Video**
* **From a Studio result** — tap the quick Reframe action button directly on any Studio result preview card

***

**Getting Started**

**Step 1: Load Your Clip**

Pick the video clip you want to reframe. Three sources are available:

* **Upload** — select a file from your computer (MP4, MOV, or other common formats; up to 100 MB)
* **Recents** — pick from any clip recently used or generated in Chat Video Pro
* **Import from Premiere** — pull a clip directly from your active Premiere Pro timeline

The clip loader is skipped when entering from the chat Transform menu or a Studio result button — your clip is already pre-loaded.

***

<figure><img src="https://3726163538-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FOksMNVulq2ffwzQ32RfP%2Fuploads%2FPuIs59F6ZRRlxqnEW4DE%2Fimage.png?alt=media&amp;token=890eb679-74c7-4fd2-80c7-19b6b8425519" alt=""><figcaption></figcaption></figure>

**Step 2: Choose a Target Aspect Ratio**

Select the ratio you want the output to be. Seven options are available:

<table><thead><tr><th width="125">Ratio</th><th width="161">Name</th><th>Common Use</th></tr></thead><tbody><tr><td><strong>16:9</strong></td><td>Wide</td><td>YouTube, desktop, broadcast</td></tr><tr><td><strong>9:16</strong></td><td>Vertical</td><td>TikTok, Reels, YouTube Shorts</td></tr><tr><td><strong>1:1</strong></td><td>Square</td><td>Instagram feed, social ads</td></tr><tr><td><strong>4:3</strong></td><td>Classic</td><td>Standard TV, Zoom</td></tr><tr><td><strong>3:4</strong></td><td>Portrait</td><td>Upright portrait format</td></tr><tr><td><strong>21:9</strong></td><td>Cinema</td><td>Ultra-wide cinematic</td></tr><tr><td><strong>9:21</strong></td><td>Tall</td><td>Extra-tall vertical</td></tr></tbody></table>

Your current clip's aspect ratio is automatically excluded from the list — converting a clip to the ratio it is already in would have no effect.

***

**Step 3: Choose Quality**

* **Draft** — faster processing, supports clips up to **30 seconds**. Use Draft to test your ratio and fill hint before committing to a full render.
* **Final** — best quality output, supports clips up to **10 seconds**. Use Final for delivery.

{% hint style="info" %}
Start with Draft to quickly iterate on ratio choice and fill hint, then switch to Final for your delivery render.
{% endhint %}

***

**Step 4: Add an Optional Fill Hint**

The fill hint is a short text description that guides what the AI generates in the newly added areas. Leave it blank for fully automatic fill, or type a brief phrase when you want to steer the output.

**Examples:**

* `forest background, seamless`
* `brick wall, warm light`
* `dark studio, soft gradient`
* `extend concrete floor`

{% hint style="info" %}
Keep fill hints short and descriptive — a few words or one short phrase. Describe what the new area should look like, not what the subject should do. Subject positioning is handled automatically.
{% endhint %}

***

<figure><img src="https://3726163538-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FOksMNVulq2ffwzQ32RfP%2Fuploads%2FFpDgYZk1Obc4DydiOSiJ%2FAdobe_Premiere_Pro_GAKJzzFxpn.gif?alt=media&amp;token=ec0c2bab-351e-45e8-a06b-4ff6b2f31170" alt=""><figcaption></figcaption></figure>

**Step 5: Generate and Use the Result**

Click **Generate**. A progress indicator shows while Reframe processes the clip. When the preview appears:

* Play it back to review the new framing and fill
* Click **Insert to Timeline** to place it on the Premiere Pro timeline
* Click **Save to Library** to store it for later use

If the result isn't quite right, adjust the fill hint or quality tier and regenerate.

***

**How Reframe Works**

**Subject positioning** — The AI detects the primary subject and centers it in the new frame by default. Use the **reposition and zoom** controls in Studio or the chat quick-modal to adjust placement when the auto-center is not quite right.

**AI fill** — Reframe generates new content along the expanded edges to match the look and content of the scene. The original clip remains intact; the AI adds to it rather than cropping.

**Input limits** — Clips must be at least 1 second and no larger than 100 MB. Duration limits depend on the quality tier: up to 30 seconds for Draft, and up to 10 seconds for Final.

***

**Pro Tips**

**Stable shots work best**

Locked-off shots, talking heads, product shots, and slow b-roll give the AI a consistent background to extend. Fast camera movement and quick pans make it much harder to generate a seamless fill — use stable, steady clips whenever possible.

**Draft first, Final for delivery**

Draft quality is fast enough to run several iterations quickly. Test different fill hints and confirm the framing looks right before running a Final render. The extra processing time for Final is worth spending only once you are satisfied with the Draft result.

**Use the fill hint for complex backgrounds**

When the new areas are large or the background is detailed, a short fill hint almost always produces better results than leaving the field blank. Describe the environment simply: "outdoor park, sunlight" or "dark office, city lights through window."

**Trim long clips before using Final quality**

Final quality supports clips up to 10 seconds. If your source clip is longer, trim it to the segment you need in Premiere Pro before importing — you get a better result and a faster render.

**Pair Reframe with other Studio tools**

Generate a clip in Motion Director or AI B-Roll, then immediately Reframe it for a different platform using the quick action button on the result card. The Studio result entry point is the fastest way to repurpose generated content the moment it lands.

***

**Troubleshooting**

**The fill edges look inconsistent or shift between frames**\
The source clip likely has camera movement. Reframe works best on locked-off shots. Try a more stable segment of the clip, or use a shorter section where the camera is still.

**The subject is off-center in the output**\
The source clip may have an extreme or off-center composition. Trim the source to a tighter crop in Premiere Pro that better centers the subject before sending it to Reframe.

**The fill area looks wrong or doesn't match the scene**\
Add or adjust the fill hint to describe the background more specifically. Even a brief description like "extend the sky, blue, bright" gives the AI useful context when the source edges are complex.

**The Generate button is disabled**\
Reframe requires an API key configured in Settings. Go to Settings → API Keys, confirm your key is entered, and check that it is funded.

**Draft quality looks noticeably rough**\
Draft is designed for quick iteration, not delivery. Once the ratio and fill hint look right in Draft, run a Final quality render for the version you plan to use.

**My clip is over 10 seconds and I want Final quality**\
Final quality supports clips up to 10 seconds. Trim the clip in Premiere Pro to a 10-second or shorter segment, then reimport and try again. Use Draft quality if you need to reframe the full longer clip.

**Generation failed or timed out**\
Try again — generation can occasionally fail under high load. If failures continue, check your API key status in Settings and confirm the key is funded.

***

**Next:** Learn about AI Color Match — instantly match the color grade of any clip to a reference frame.