A video's thumbnail is often just its best-looking single frame — extract_video_frames pulls exactly that, at a timestamp you choose, and returns it as a usable image URL.
This is the narrow, single-frame version of turn-video-into-still-photos: same tool, but here you're picking ONE representative moment rather than a set of frames across the clip.
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Extract one or more still frames from a video as image URLs. Useful for grabbing a thumbnail, or chaining a frame into generate_image_from_image / generate_video_from_image as a reference/first frame.
What to tell the agent
Versely's agent maps this plain-English request directly onto extract_video_frames. You don't need to know the parameter names — just describe what you want.
“Extract a single frame at the 3-second mark of this video to use as the thumbnail.”
How it works
1. Pick your moment
Set start_time (and optionally end_time) to the timestamp that has the best framing for a thumbnail.
2. Request one frame
Set frame_count to 1 rather than pulling a range of stills.
3. Choose the format
output_format sets the file type of the returned image.
4. Polish if needed
Pair with upscale-image-resolution if the frame needs to be larger, or add-text-overlay if you want a title baked onto the thumbnail image itself.
What it costs
Billed as a standard, lightweight extraction job. Ask the agent for estimate_cost if pulling from a very long source video.
The formula behind that number: What does a batch of 100 AI product images cost? — charges one fixed price per call, so the image's size and shape are free.
Limits & things to know
- Thumbnail quality is capped by the source video's resolution — a low-res source produces a low-res thumbnail.
- This extracts an existing frame; it doesn't generate a stylized custom thumbnail graphic from scratch (for that, describe the design to Versely's text-to-image tool instead).
Who uses this
- YouTube and Shorts thumbnails
- Video library preview images
- Social post preview cards
Frequently asked questions
How is this different from pulling multiple frames?+
Same underlying tool (extract_video_frames), just with frame_count set to 1 and a specific start_time chosen for the best single moment — for multiple stills across a clip, see turn-video-into-still-photos.
Can it design a custom thumbnail graphic instead of using a real frame?+
No — this extracts an actual frame from your video. For a fully custom designed thumbnail graphic, use Versely's text-to-image generator instead.
Related Versely tools
Related editing jobs
Generate a Video Thumbnail inside Versely
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