FeaturesGenerate × Automate
ShortFast writes the script, makes the video with a voiceover and captions, and publishes it to TikTok, Instagram Reels and YouTube Shorts on your schedule. Here is every feature behind those steps.
Generate
Create faceless & AI-powered videos automatically
Press AI edit on any faceless ShortFast video and it adds motion design picked for that video: big hook words, counters and charts, maps with pins and labels, the subject cut out and popped forward, punch-ins and transitions, all timed to the narration. Steer it with a one-line prompt, run it again for a new take, or remove it. It adds no sound effects and generates no new footage.
Learn moreShortFast writes a fresh hook for every video it generates, pattern-matched to your niche and written together with the script, and a new one for every episode, so you get variety at volume instead of the same three formulas. Coming soon: a different opening on every variation so you can A/B test openings at volume, and hooks tuned per platform. Start from this page to get early access.
Learn moreGenerate complete short-form scripts with the hook, body and call to action written as one piece, tuned to your niche and your audience's pain points. Built for short-form video of up to 3 minutes on every plan, or 8 to 15 minutes on Advanced, not repurposed blog copy.
Learn moreAutomatically add accurate burned-in captions with karaoke-style word-by-word highlights, emojis and your brand colors. ShortFast transcribes the voiceover in more than 60 languages, detected automatically, and keeps viewers reading and watching longer on TikTok, Reels and Shorts. Pick one of 10 styles or set the font, colors, highlight and position yourself, and fix any word or its timing in the editor. Coming soon: upload your own brand font.
Learn moreShortFast edits every video for you. It cuts scenes in time with the voiceover at the pace you choose, fast, normal or slow, adds punch-in zooms, pans and Ken Burns moves for emphasis, and picks transitions that keep viewers watching on TikTok, Reels and Shorts. No editing software needed, and every effect can be switched off. Coming soon: automatic jump cuts and silence removal for footage you upload. Start from this page to get early access.
Learn moreAutomatically add contextual b-roll to every scene of your videos. ShortFast picks from a library of millions of licensed stock clips and images, with nothing to attribute, and generates an AI image for any scene no real footage fits, timing each one to the narration to hold attention on TikTok, Reels and Shorts. Swap any shot or upload your own. Then AI edit can add overlays that illustrate your talking points: big hook words, counters and charts, maps with pins and labels, timed to the voice.
Learn moreShortFast's Smart B-Roll uses AI to read your script and put the right visual on every line: licensed stock footage when a real clip fits, after an AI checks the actual frames against what the narration says, and an AI-generated image when nothing does. Every scene is timed to the voice, and you can swap any shot or upload your own. On top of it, AI edit adds motion design: big hook words, counters and charts, maps with pins and labels, the subject cut out and popped forward.
Learn moreAutomate
Publish and grow on autopilot across all platforms
See which hooks convert, where viewers drop off and which videos are worth doubling down on. Analytics & Insights is coming to ShortFast: hook performance tracking, retention heatmaps and A/B test results in one dashboard. Start from this page to get early access when it ships. Until then, every video ShortFast publishes is an ordinary post on your account, with its full numbers in TikTok's analytics, YouTube Studio and Instagram Insights.
Learn morePost to TikTok, Instagram Reels and YouTube Shorts accounts from one dashboard. Publish or schedule each video to all of them in one step, give every automation its own schedule and timezone, and see everything that is scheduled in one calendar. Starter connects 1 social account, Pro 3 and Advanced 6.
Learn moreShortFast posts the same video and caption to TikTok, Instagram Reels and YouTube Shorts automatically, on the schedule you set, through each platform's official API, so nothing is uploaded three times. Pro ($39 a month) connects three accounts, one per platform; if your videos are already made, a scheduler such as Publer or Buffer cross-posts them instead.
Learn moreGenerate variations of one video with different hooks, pacing, editing styles and CTAs, A/B test them, and double down on what performs. A/B variations are coming soon to ShortFast: start from this page to get early access. Available today: give an automation one theme and ShortFast writes the next episode for every slot, with a new topic, script, title and footage in the same tone and length, and developers can ask for the next episode of any faceless video through the API or MCP.
Learn moreHow it works
You set up an automation once: a topic, a short brief, a style and a schedule. For every slot, ShortFast picks a new topic within your brief, writes the script and hook, builds the scenes from licensed stock footage or AI images in one of 27 styles, adds one of 40+ voices and burned-in captions, and publishes the video through the platforms' official APIs.
Each episode is new: a new topic, script, title and description in the same tone, format and length, and recent titles are checked so the series does not repeat itself. Your niche, your angle and a review of the first videos stay with you. Mass-produced, near-identical videos are the pattern YouTube's rules on generic or repetitive content exclude from monetization.
Starter runs 1 automation on 1 social account, Pro 3 on 3 and Advanced 6 on 6. Credits pay for the videos: about 24 a minute from stock footage and 37 in an AI art style, so Starter's 2,000 credits cover about 80 one-minute stock-footage videos.
Join thousands of creators using ShortFast to grow on autopilot.