Proud Partners
Built to sit inside a real creator workflow
ThumbAPI does one thing: turns a title into a click-worthy thumbnail. Our partners cover the rest of the pipeline — from the raw video, to the pre-publish A/B check that saves you from shipping a dud.

OpenVidi
AI video generation
Where the video comes from
ThumbAPI starts working the moment a video exists. OpenVidi is how that video gets made: you type a topic in one sentence, and it researches it, writes the script, records the voiceover, generates about 95 scenes with Google's Gemini image models, animates them with Veo, and hands back a finished 1080p MP4 — typically in under an hour, unattended.
You connect your own Google Cloud account. Google gives every new cloud account $300 in welcome credit, valid for 90 days, which covers your first 5–8 full videos. After that, a full video costs about $35–55 in compute, billed by Google at cost. OpenVidi charges only for the pipeline and never marks up compute.
Video generation happens in the OpenVidi web app, so this is a hand-off rather than a node-to-node integration: you export the finished file, and everything downstream — thumbnail, packaging, publishing — automates as usual.
YouThumb
YouTube thumbnail tester
Chrome extension
Preview thumbnails inside the real YouTube feed
A ThumbAPI-generated thumbnail is only half the answer. The other half is knowing whether it actually earns the click when it's sitting next to nine other videos in the home feed, search results, or the suggested sidebar. YouThumb solves that step without leaving YouTube.
Install the free Chrome extension, drop in your thumbnail and title, and it renders your card directly inside YouTube's real interface — same layout, same competitors, same crop. You can compare against top-performing videos in your niche, run YouThumb's Enhance pass to lift composition and CTR against a dataset of high-performers, or generate a fresh thumbnail on the spot from a prompt.
- Live preview inside YouTube's real UI
- Real competitor comparison, in-feed
- Enhance for higher CTR against a high-CTR dataset
- Free · 5.0 on the Chrome Web Store
Want to become a partner?
If your product plugs cleanly into the video → thumbnail → publish pipeline, we'd love to talk. We keep the list deliberately small — quality over count.
Get in touch