# ShortFast > ShortFast writes the script, generates faceless or AI UGC video with voiceover and captions, then auto-posts daily to TikTok, Reels and YouTube Shorts. ShortFast is an AI video automation platform for short-form video. It writes the script and hook, generates a faceless video from licensed stock footage or AI b-roll, or a UGC-style video with AI actors, adds a voiceover and burned-in captions, then publishes the finished video to TikTok, Instagram Reels, YouTube Shorts on a daily schedule. It is built for people who need a video a day and do not have long-form footage to cut from: faceless channel operators, agencies running many client accounts, and businesses using short video for leads. Clipping tools such as OpusClip start from a recording you already have; ShortFast starts from a topic. Plans start at $19 per month (Starter $19 · Pro $39 · Advanced $99), with a 20% discount billed yearly. Every monthly plan starts with a 3-day trial for $1, with full access and no long-term commitment. Everything in the product is also available programmatically through a REST API, webhooks, and an MCP server for Claude, Cursor and other AI agents. ShortFast is built and operated by SachaSoft LLC. Facts last reviewed: 2026-09-10. Site: https://www.shortfast.com. App: https://app.shortfast.com. Developer docs: https://developer.shortfast.com. ## Pricing (USD) - Starter: $19/month, or $15/month billed yearly ($180/year). 30 videos per month, 1 automation, Auto-publish weekly or daily, Publish to TikTok, Reels & YouTube Shorts, 1 profile and 1 social account, 10 GB storage for your media, Library of 5 million assets, Intuitive video editor. - Pro: $39/month, or $31/month billed yearly ($372/year). 90 videos per month, 3 automations, Auto-publish up to 3× a day per automation, Publish to TikTok, Reels & YouTube Shorts, 1 profile and 3 social accounts, 50 GB storage for your media, Library of 5 million assets, Intuitive video editor. - Advanced: $99/month, or $79/month billed yearly ($948/year). 180 videos per month, Long videos up to 15 minutes, 6 automations, Auto-publish daily per automation, 2 profiles and 6 social accounts, 100 GB storage for your media, Library of 5 million assets, Intuitive video editor. - Trial: every monthly plan starts with a 3-day trial for $1, full access, cancel anytime. Yearly plans are billed up front at 20% off. ## Publishes to - TikTok - Instagram Reels - YouTube Shorts ## Key pages - [About ShortFast](https://www.shortfast.com/about) - [API & webhooks](https://www.shortfast.com/developers) - [MCP server](https://www.shortfast.com/mcp) - [API documentation](https://developer.shortfast.com): REST API, webhooks and MCP server reference. ## Free tools Interactive tools that work without an account, each with a long-form guide underneath. Index: https://www.shortfast.com/tools - [AI B-Rolls Video Generator](https://www.shortfast.com/tools/ai-brolls-video-generator): AI-generated b-roll matched to your script, giving TikToks, Reels and Shorts a distinctive look that lifts watch time. No generic stock clips. - [AI TikTok Video Generator](https://www.shortfast.com/tools/tiktok-video-generator): Pick stock footage, AI visuals or both, choose a voice and music, and get a ready-to-post video. No filming, no editing software, no design skills. - [Faceless Video Generator](https://www.shortfast.com/tools/faceless-video-generator): Turn any topic into a captioned vertical video with licensed stock footage or AI b-roll and generated voiceover. Built for faceless YouTube, TikTok and Reels. - [Hook Generator](https://www.shortfast.com/tools/hook-generator): Free video hook generator. Enter a topic and get 20 opening lines from 50+ proven formulas, with why each one holds attention. No signup, instant. - [Instagram Reels Hook Generator](https://www.shortfast.com/tools/instagram-reels-hook-generator): Free Instagram Reels hook generator. Enter your topic and get 20 opening lines built from proven formulas, with the reason each one works. No signup required. - [Instagram Username Checker](https://www.shortfast.com/tools/instagram-username-checker): Free Instagram username checker. Validate any handle against Instagram's rules, get instant length and character feedback, and see brandable alternatives. - [Long Video to Shorts](https://www.shortfast.com/tools/youtube-to-shorts): Free tool to find the best clips in a long video. Paste your transcript and get ranked clip candidates with timestamps and durations for Shorts and Reels. - [Prompt to Video](https://www.shortfast.com/tools/prompt-to-video): Describe any topic in plain English and get a full video: AI script, matched visuals, voiceover and burned-in captions. Idea to video in 5 minutes. - [Script to Video](https://www.shortfast.com/tools/script-to-video): Paste a script and get matching visuals, AI voiceover, burned-in captions and music. Turn blog posts, newsletters or podcasts into Shorts and Reels. - [Snapchat Username Checker](https://www.shortfast.com/tools/snapchat-username-checker): Free Snapchat username checker. Validate any handle against Snapchat's 3-15 character rules and get alternatives. Snapchat usernames are permanent. - [Stock Footage Video Generator](https://www.shortfast.com/tools/stock-footage-video-generator): Free stock footage video generator. Paste a script and get a captioned vertical video built from real licensed HD and 4K clips. No watermarks, no signup. - [TikTok Hook Generator](https://www.shortfast.com/tools/tiktok-hook-generator): Free TikTok hook generator. Enter a topic and get 20 scroll-stopping opening lines from proven viral formulas, with the reason each one works. - [TikTok Username Checker](https://www.shortfast.com/tools/tiktok-username-checker): Free TikTok username checker. Check if a handle is available, validate it against TikTok's rules, and get brandable alternatives instantly. No signup. - [Twitch Username Checker](https://www.shortfast.com/tools/twitch-username-checker): Free Twitch username checker. Validate any handle against Twitch's 4-25 character rules, get instant format feedback, and see brandable alternatives. - [X (Twitter) Username Checker](https://www.shortfast.com/tools/x-username-checker): Free X (Twitter) username checker. Validate any handle against X's 15-character limit and character rules, and see alternatives that still fit. - [YouTube Handle Checker](https://www.shortfast.com/tools/youtube-handle-checker): Free YouTube handle checker. Enter any @handle to see if it's available, validate it against YouTube's rules, and get brandable alternatives. - [YouTube Shorts Hook Generator](https://www.shortfast.com/tools/youtube-shorts-hook-generator): Free YouTube Shorts hook generator. Enter a topic and get 20 opening lines built from proven retention formulas, with the reason each one works. ## Comparisons Honest head-to-head comparisons of ShortFast with other AI video tools, including when the competitor is the better pick. Index: https://www.shortfast.com/compare - [ShortFast vs AutoShorts](https://www.shortfast.com/compare/autoshorts-alternative): ShortFast vs AutoShorts, honestly compared. AutoShorts builds scenes from AI images in 19 art styles. ShortFast uses stock footage and runs many accounts. - [ShortFast vs BigMotion](https://www.shortfast.com/compare/bigmotion-alternative): ShortFast vs BigMotion, honestly compared. Both run faceless channels on autopilot. They differ on script control, account limits and renewal pricing. - [ShortFast vs Crayo](https://www.shortfast.com/compare/crayo-alternative): ShortFast vs Crayo, honestly compared. Crayo is an editor for clips and templated formats you post yourself. ShortFast generates and auto-publishes daily. - [ShortFast vs Faceless.so](https://www.shortfast.com/compare/faceless-so-alternative): ShortFast vs Faceless.so, honestly compared. Both automate faceless channels. Faceless.so posts to 7 platforms on credits, ShortFast to 3 on flat plans. - [ShortFast vs FlowShorts](https://www.shortfast.com/compare/flowshorts-alternative): ShortFast vs FlowShorts, honestly compared. FlowShorts runs a niche channel on AI-image scenes. ShortFast uses stock footage, several accounts and an API. - [ShortFast vs InVideo AI](https://www.shortfast.com/compare/invideo-alternative): ShortFast vs InVideo AI, honestly compared. InVideo gives you a timeline editor and templates; ShortFast generates and auto-publishes on a schedule. - [ShortFast vs OpusClip](https://www.shortfast.com/compare/opusclip-alternative): ShortFast vs OpusClip, honestly compared. OpusClip clips long videos you already have; ShortFast generates videos from scratch and posts them daily. - [ShortFast vs PassiveShorts](https://www.shortfast.com/compare/passiveshorts-alternative): ShortFast vs PassiveShorts, honestly compared. PassiveShorts prices per series, uses AI images, skips Instagram. ShortFast uses stock footage and adds Reels. - [ShortFast vs Pictory](https://www.shortfast.com/compare/pictory-alternative): ShortFast vs Pictory, honestly compared. Pictory repurposes existing text and long video; ShortFast generates from a topic and auto-publishes daily. - [ShortFast vs Revid](https://www.shortfast.com/compare/revid-alternative): ShortFast vs Revid, honestly compared. Revid sells a wide AI model menu on metered credits. ShortFast generates and posts daily at a flat monthly price. - [ShortFast vs Shortspilot](https://www.shortfast.com/compare/shortspilot-alternative): ShortFast vs Shortspilot, honestly compared. Both generate faceless Shorts on a schedule. They differ on formats, platforms, multi-account and price. - [ShortFast vs Syllaby](https://www.shortfast.com/compare/syllaby-alternative): ShortFast vs Syllaby, honestly compared. Syllaby adds avatars, voice cloning and long-form, one video at a time. ShortFast posts faceless video on autopilot. ## Features What each capability does and how it behaves. Index: https://www.shortfast.com/features - [AI Hook Generator](https://www.shortfast.com/features/ai-hook-generator): ShortFast writes a fresh hook for every video, pattern-matched to your niche and regenerated per variation, so you A/B test openings at volume. - [AI Script Writer](https://www.shortfast.com/features/ai-script-writer): Complete short-form scripts with hook, body and CTA written as one piece, tuned to your niche. Built for 30-60 second video, not repurposed blog copy. - [Analytics & Insights](https://www.shortfast.com/features/analytics-insights): See which hooks convert and where viewers drop off. Hook performance tracking, retention heatmaps and A/B results, so you double down on winners. - [Auto Captions & Subtitles](https://www.shortfast.com/features/auto-captions-subtitles): Burned-in captions with word-by-word highlights, emojis and brand fonts. Karaoke-style subtitles that keep viewers reading and watching longer. - [Auto Video Editor](https://www.shortfast.com/features/auto-video-editor): Automatic jump cuts, punch-in zooms, silence removal and viral pacing. No editing software: the AI applies the style that keeps viewers watching. - [B-Roll Generator](https://www.shortfast.com/features/b-roll-generator): Automatic contextual b-roll, overlays and visuals. ShortFast picks from stock clips and AI images, timing each insert to hold attention. - [Brand Voice Training](https://www.shortfast.com/features/brand-voice-training): Train ShortFast on your style, tone and vocabulary so every script, hook and CTA sounds like you. Upload your best content and the AI learns it. - [Lead Capture](https://www.shortfast.com/features/lead-capture): Turn short-form viewers into leads with smart CTAs, link tracking and CRM integrations. See which videos drive sign-ups, calls and purchases. - [Multi-Account Posting](https://www.shortfast.com/features/multi-account-posting): Post to unlimited TikTok, Reels and YouTube Shorts accounts from one dashboard. Separate queues per account, timezone-aware scheduling, rate limiting. - [Multi-Platform Posting](https://www.shortfast.com/features/multi-platform-posting): Auto-post to TikTok, Instagram Reels, YouTube Shorts and LinkedIn. Each video gets the right aspect ratio, caption format and hashtags per platform. - [Smart B-Roll](https://www.shortfast.com/features/smart-b-roll): Smart B-Roll reads your script context and inserts the right stock footage, AI visuals and overlays at the exact moments that reinforce your message. - [Video Variations](https://www.shortfast.com/features/video-variations): Generate multiple variations of one video with different hooks, pacing, editing styles and CTAs. A/B test at scale and find your winners fast. ## Platforms Per-platform publishing specs and how ShortFast automates each one. Index: https://www.shortfast.com/platforms - [Instagram Reels](https://www.shortfast.com/platforms/instagram-reels): Automate Instagram Reels end to end. ShortFast writes the script and hook, generates the video, burns in captions, and auto-publishes on a schedule. - [TikTok](https://www.shortfast.com/platforms/tiktok): Automate TikTok end to end. ShortFast writes the script and hook, generates faceless or AI UGC video, burns in captions, and auto-posts daily. - [YouTube Shorts](https://www.shortfast.com/platforms/youtube-shorts): Automate YouTube Shorts end to end. ShortFast writes the script and hook, generates the video, burns in captions, and auto-publishes to your channels. ## Automation guides How to run a channel on autopilot: bots, schedulers and end-to-end automation for Shorts, TikTok and Reels. Index: https://www.shortfast.com/automation - [AI UGC Ads Generator](https://www.shortfast.com/automation/ai-ugc-ads-generator): What UGC-style ads are, how AI actors change the cost, when they work and when they look fake, disclosure rules, and how to script and test a 30-second ad. - [Auto-Post YouTube Shorts](https://www.shortfast.com/automation/auto-post-youtube-shorts): How to auto-post YouTube Shorts: scheduling versus full automation, what each upload carries, timezone-aware posting, cadence, and the failures to avoid. - [Reddit Story Video Generator](https://www.shortfast.com/automation/reddit-story-video-generator): Make Reddit-style story videos without the gameplay format's attribution and originality problems: original retellings over stock footage or AI b-roll. - [TikTok Automation](https://www.shortfast.com/automation/tiktok-automation): How to automate TikTok end to end, what the Creator Rewards Program requires, why videos over one minute matter, and how to run several accounts safely. - [YouTube Automation Channel](https://www.shortfast.com/automation/youtube-automation-channel): What a YouTube automation channel is, the real economics, the steps from niche to first 90 days, the monetization thresholds, and why most of them fail. - [YouTube Shorts Bot](https://www.shortfast.com/automation/youtube-shorts-bot): A YouTube Shorts bot is a pipeline that generates and posts videos, not a view bot. What YouTube allows, how to set one up, and how to stay monetizable. ## Faceless channel niches Niche-by-niche playbooks for faceless channels: formats, hooks, cadence and what the niche typically earns. Index: https://www.shortfast.com/niches - [AI News](https://www.shortfast.com/niches/ai-news): How to run a faceless AI news channel: daily explainer formats, ten hooks, a sample script, sourcing rules, honest RPM ranges and a monetization timeline. - [Crypto](https://www.shortfast.com/niches/crypto): Run a faceless crypto channel on news and explainers, not price calls: formats, ten hooks, a sample script, honest RPM ranges and the path to monetization. - [Facts](https://www.shortfast.com/niches/facts): Run a faceless facts channel that survives YouTube's originality rules: six formats, ten hooks, a full sample script, honest RPM ranges and a timeline. - [Faith and Bible Stories](https://www.shortfast.com/niches/faith-and-bible-stories): How to run a faceless faith channel: respectful Bible story retellings and daily verses over real footage, with formats, hooks, a sample script and RPM. - [Finance](https://www.shortfast.com/niches/finance): How to run a faceless finance channel: formats that get watched, ten hooks, a full sample script, honest RPM ranges and a realistic path to monetization. - [Gaming](https://www.shortfast.com/niches/gaming): How to run a faceless gaming channel with news, lore explainers and tips narrated over stock, AI b-roll or your own gameplay. Formats, hooks, script and RPM. - [Health](https://www.shortfast.com/niches/health): How to run a faceless health channel on Shorts, TikTok and Reels: formats, 10 hooks, a sample script, sourcing rules for YMYL topics, and honest RPM ranges. - [History](https://www.shortfast.com/niches/history): How to run a faceless history channel: six formats, ten hooks, a full sample script, what to put on screen, honest RPM ranges and a realistic timeline. - [Kids Learning](https://www.shortfast.com/niches/kids-learning): How to run a faceless kids learning channel: alphabet, numbers and animals, with formats, hooks, a script, and what made-for-kids rules mean for revenue. - [Luxury](https://www.shortfast.com/niches/luxury): Run a faceless luxury channel from stock footage: watches, cars and real estate tours, with formats, ten hooks, a sample script and honest RPM ranges. - [Motivation](https://www.shortfast.com/niches/motivation): Run a faceless motivation channel: discipline, mindset and stoic narration over real footage, with formats, ten hooks, a sample script and honest RPM ranges. - [Quotes](https://www.shortfast.com/niches/quotes): Run a faceless quotes channel that stays monetizable: philosophy and wisdom with editorial value, formats, ten hooks, a sample script and honest RPM ranges. - [Reddit Stories](https://www.shortfast.com/niches/reddit-stories): An honest playbook for a faceless Reddit stories channel: attribution and originality issues, six formats, ten hooks, a sample story and realistic earnings. - [Scary Stories](https://www.shortfast.com/niches/scary-stories): Run a faceless scary stories channel on original fiction and folklore: six formats, ten hooks, a full sample story, policy cautions and honest RPM ranges. - [Sports](https://www.shortfast.com/niches/sports): Run a faceless sports channel with stories, records and explainers over licensed stock footage, not broadcast clips. Formats, hooks, a sample script and RPM. ## Use cases How different kinds of teams use ShortFast. Index: https://www.shortfast.com/use-cases - [Agencies](https://www.shortfast.com/use-cases/agencies): Offer video automation as a high-margin service. Produce dozens of short-form videos per client per week without hiring editors or scaling your team. - [Coaches & Consultants](https://www.shortfast.com/use-cases/coaches-consultants): Publish authority-building video daily that attracts ideal clients and books discovery calls, without spending hours filming and editing. - [Content Creators](https://www.shortfast.com/use-cases/content-creators): Multiply your output with automated variations and cross-platform posting. Generate multiple versions of every video and post consistently, without burnout. - [Ecommerce Product Promos](https://www.shortfast.com/use-cases/ecommerce-product-promos): Turn product descriptions, URLs and images into scroll-stopping short-form video. Compete on TikTok, Reels and Shorts without a production budget. - [Local Services](https://www.shortfast.com/use-cases/local-services): Short-form video for plumbers, dentists, contractors and salons. Before/after transformations, testimonials and tips that drive local inquiries. - [Product & App Demos](https://www.shortfast.com/use-cases/product-demos): Turn your product or app into short demo videos that show the thing working, then post them daily across TikTok, Reels and YouTube Shorts without a video team. - [SaaS Lead Generation](https://www.shortfast.com/use-cases/saas-lead-gen): Demo walkthroughs, feature explainers and educational video that capture B2B leads on autopilot across LinkedIn, TikTok and YouTube Shorts. ## Blog Guides on hooks, testing, monetization and running short-form video at volume. Index: https://www.shortfast.com/blog - [A/B Testing Video Hooks: The Complete Guide](https://www.shortfast.com/blog/ab-testing-hooks): How to A/B test short-form video hooks in 2026 with Instagram Trial Reels, YouTube's swiped-away metric and TikTok retention, and how much data is enough. - [Best Faceless Video Generators That Auto-Post (2026)](https://www.shortfast.com/blog/best-faceless-video-generators-that-auto-post): Eight faceless video generators that auto-post, plus Syllaby and Crayo, compared on platforms, visuals, pricing and API access from each vendor's own pages. - [Best Time to Post Shorts, TikTok and Reels (And Why It Matters Less Than You Think)](https://www.shortfast.com/blog/best-time-to-post-shorts-tiktok-reels): No universal best time exists. How audience timezones work, what most studies agree on, how to find your own window in analytics, and why consistency wins. - [Build a Video Content Funnel](https://www.shortfast.com/blog/video-content-funnel): A step-by-step short-form video funnel: awareness, consideration and conversion content, lead capture on TikTok, Reels and Shorts, and measuring leads. - [How to Scale Video Content Without Burning Out](https://www.shortfast.com/blog/scale-video-content): A faceless automation playbook for scaling short-form video: batched scripts, AI b-roll, cadence per platform and YouTube's 2025 originality rules. - [How to Start a Faceless YouTube Channel (Step by Step)](https://www.shortfast.com/blog/how-to-start-a-faceless-youtube-channel): Step-by-step guide to a faceless YouTube channel: niche, handle, format, scripts, voice, captions, cadence, and what to expect in the first 90 days. - [Is AI-Generated Content Monetizable on YouTube?](https://www.shortfast.com/blog/is-ai-generated-content-monetizable-on-youtube): Yes, if it is original and not mass-produced. What YouTube's July 2025 inauthentic content policy demonetizes, what passes, and checks to run first. - [TikTok Creator Rewards Program Requirements (2026)](https://www.shortfast.com/blog/tiktok-creator-rewards-program-requirements): 18+, 10,000 followers, 100,000 views in 30 days, videos over a minute, some countries. How it differs from the Creator Fund and what faceless channels need. - [Viral Hooks That Keep Viewers Watching](https://www.shortfast.com/blog/viral-hooks-that-work): 25 hook templates grouped into 10 formats, with an example for each. Includes hooks for faceless videos and openers that hold up on 3-minute Shorts. - [YouTube Shorts Monetization Requirements in 2026](https://www.shortfast.com/blog/youtube-shorts-monetization-requirements): Both YPP routes, how the Shorts ad revenue pool pays, the July 2025 inauthentic content rule, and realistic timelines for faceless channels posting daily. - [YouTube Shorts vs TikTok vs Reels for Faceless Channels](https://www.shortfast.com/blog/youtube-shorts-vs-tiktok-vs-reels-for-faceless-channels): Shorts, TikTok and Reels compared for faceless channels: monetization paths, length limits, audience behavior, discoverability and what to post first. ## FAQ Short, direct answers to the questions people ask before signing up. Index: https://www.shortfast.com/faq - [Do I need editing skills?](https://www.shortfast.com/faq/need-editing-skills): No editing skills needed. ShortFast handles jump cuts, zooms, transitions, captions, b-roll and music automatically. No Premiere Pro or CapCut required. - [How do video variations work?](https://www.shortfast.com/faq/how-variations-work): ShortFast generates multiple versions of the same content, each with a different hook, pacing, editing style and CTA, so you can A/B test at scale. - [How fast will I see results?](https://www.shortfast.com/faq/how-fast-results): Most users see engagement lift within the first week of consistent posting. Meaningful lead generation and account growth typically arrive in 2-4 weeks. - [What is ShortFast?](https://www.shortfast.com/faq/what-is-shortfast): ShortFast is an AI video automation platform that writes scripts and hooks, generates complete short-form videos, and auto-publishes them for you. - [What kind of videos can I create?](https://www.shortfast.com/faq/what-videos-can-i-create): Product demos, explainers, tutorials, testimonials, before/after transformations, listicles, trending takes and more, in faceless or AI UGC style. - [Which platforms are supported?](https://www.shortfast.com/faq/platforms-supported): ShortFast auto-posts to TikTok, Instagram Reels and YouTube Shorts, optimizing aspect ratio, captions and hashtags for each platform. ## Optional - [Privacy policy](https://www.shortfast.com/privacy) - [Terms of service](https://www.shortfast.com/terms) - [Full site text](https://www.shortfast.com/llms-full.txt): every page above, in one plain-text file.