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Guide to Video Generation Parameters

Learn what video generation parameters do in getimg.ai: from aspect ratios and clip lengths to model options and references.

What Are Video Generation Parameters

Before generating a video, you can adjust a few basic settings that define how your output looks and behaves:

  • Aspect ratio (the width-to-height shape of your video)
  • Length
  • Number of variations
  • Quality (on select models).

These options are all available right in the prompt box at the bottom of Create video. Available aspect ratios, lengths, and audio support depend on the model in use.

🎥 Auto

Auto is the default and what we recommend for most users. The right video generation model is chosen automatically based on your prompt — including audio-capable models when your prompt asks for sound.

Available options on Auto

  • Aspect ratios: 16:9, 9:16 (landscape or vertical)
  • Lengths: 5, 6, 8, 10, 12 seconds (silent) / 5, 8, 10 seconds (with sound)
  • Variations: 1, 2, or 4
  • References: supports First Frame, First + Last Frame, or multiple image References. You can’t use both First (or First + Last) Frame and References simultaneously.
Tip:

Read our guides to first + last frame and video references for more details.

Auto also includes smart prompt enhancement, which expands short prompts into detailed, well-structured descriptions for smoother, more consistent results.

🧠 Pick a Model Yourself

If you want to explore or test different setups, click the Auto / model name button in the bottom-left of the prompt box to open the model menu.

A speaker icon next to a model name shows whether that model supports audio. Pick the one you want.

From there you can:

  • Choose any specific video model
  • See available clip lengths and aspect ratios (these vary by model)
  • Toggle Prompt Enhancement on or off.
Tip:

Check out our generation parameters guide if needed.

💎 Quality (Select Models)

Some video models support a quality switch. When you’re on one of those models, the switch sits next to the aspect ratio in the prompt box. Use it to trade speed for higher-fidelity output (or the other way around).

On Auto or a model that doesn’t support quality, the switch isn’t shown.

Reference options by model

Each model handles references differently:

  • Some allow First Frame only
  • Others allow First + Last Frame
  • Some support multiple reference images.

You’ll see all supported features listed right under the model name once you select it.

Tip:

Take a look at our Guide to Video Generation models to learn more.

That’s it: set your ratio and duration, add any references you want, and generate!

Frequently Asked Questions

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