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FPS

Also known as: fps, frames_per_second

FPS (frames per second) controls the frame rate of generated video. Higher FPS produces smoother motion but requires more frames to be generated. Lower FPS creates a choppy, stop-motion-like effect that can be stylistic or economical.

What It Does

Frame rate determines how many individual images are shown per second of video. At 24 FPS (the cinematic standard), motion appears smooth and natural. At 12 FPS, motion is noticeably choppy — each frame is held twice as long, creating a stop-motion or animation-like feel. At 30 FPS, motion is very smooth, typical of broadcast TV and web video.

The FPS setting interacts directly with duration — a 5-second clip at 12 FPS generates 60 frames, while the same clip at 30 FPS generates 150 frames. More frames mean longer generation times and higher credit costs. The model must also maintain consistency across more frames at higher FPS, which can be more challenging.

Adjusting It in CSF

FPS is a video-model parameter. Edit a production design, open its Video tab (available on plans that include video), and click Advanced Settings to open the Advanced Model Settings modal. Pick the video model to configure; FPS appears only if that model exposes it (as fps or frames_per_second).

Depending on the model it renders as a slider, a number field, or a row of buttons for a fixed set of frame rates. Save stores your value for this design and model when it differs from the default, and Reset to Defaults restores it. Set FPS alongside duration in the same modal, since together they determine how many frames the model must generate.

Value Ranges

Low (8–15 FPS)

Choppy, stylized motion. Stop-motion or animation feel. Fewer frames = faster generation and lower cost.

Mid (24 FPS)

Cinematic standard. Natural-looking motion for most content. The default for most video models.

High (30 FPS)

Smooth broadcast-quality motion. Best for fast action or scenes requiring fluid movement.

Tips

  • 24 FPS is the safest default for cinematic-looking output.
  • Use 12 FPS for a stylized, animation-like aesthetic or to save on generation cost.
  • 30 FPS is best for content destined for web or social media platforms.
  • Remember: FPS × duration = total frames generated. Keep this product reasonable to avoid long generation times.