Cloud-Based AI Video Editing Tools for Automated B-Roll Creation

Modern AI video editors can take your voiceover and raw footage and automatically create a polished Dynamic Video. These tools use AI to trim the audio, cutting out silences and even filler or redundant content, and then add relevant B-roll visuals (video clips, images) to match the narration. For example, some platforms transcribe your MP3 voiceover and let you toggle options like “remove filler words” or “remove silences” to clean up the audiosteve.ai. They then use the cleaned script to insert cutaway shots or images at the right moments. Below we list the top cloud-based AI video editing platforms that support Google Drive workflows and fully automated editing from voiceover to final MP4 output.

Pictory AI

Features: Transcribe and edit videos by editing text, automatically remove silences or filler words, and generate a video from a script or long video. It uses AI to identify key points and can match visuals to your script, pulling from a large stock library. It also auto-generates subtitles and can summarize long content into highlights (useful for trimming low-value sections)logicballs.com.
Google Drive Integration: Yes – you can connect Pictory to import videos from Google Drivekb.pictory.ai. It also offers Zapier integration and an API for workflow automation.
Limitations: Primarily geared toward turning scripts or articles into slideshow-style videos with stock footage. The auto-trimming is mostly for silences and filler words, not deep semantic shortening (you may need to manually delete any truly redundant sentences via the transcript editor). Stock visuals are generic; you may need to fine-tune scene selections for perfect context.
Pricing: Free trial available (limited videos). Paid plans start around $19–$23/month for 30 videos (Starter) and ~$49–$59/month for higher tierssoftwareoasis.com. Higher plans increase the number of videos and length allowed.
Output: MP4 downloads in HD 1080p (up to 4K on enterprise plans). Supports various aspect ratios (16:9, 9:16, 1:1) for different platformssoftwareoasis.com.
AI Editing Style/Focus: Corporate and social media videos – Pictory excels at turning blog posts, webinars, or talking-head videos into engaging clips with captions. The style is often a clean slideshow or straightforward informational video, suitable for YouTube explainers, marketing, or training content (less about flashy effects, more about clarity). Free trial: Yes (no credit card required).

Steve AI (by Animaker)

Features: An “Audio to Video” converter – you upload an MP3 voiceover and it auto-generates a video. Steve AI will transcribe the audio, remove pauses or filler words, and then auto-generate visuals to match the narrationsteve.aisteve.ai. It offers multiple video styles: you can create live-action videos with stock footage, or choose animated scenes and characters, or even “GenAI” visuals. It also adds animated text captions and transitions automatically. You have a library of templates to choose a look and feel. You retain editing control – after auto-creation, you can swap images, adjust timing, etc., to fine-tune the resultsteve.ai.
Google Drive Integration: No direct Drive sync. You upload assets via the web interface (so you might manually grab files from Drive). However, it’s fully cloud-based and part of Animaker’s online suite, so your projects are stored online.
Limitations: 5-minute audio length limit per upload (for now)steve.ai. The auto-visual selection is decent but may sometimes be off-target – you might need to replace some visuals if the AI’s choice isn’t perfect. On lower plans, the media library is limited; the best stock clips are in higher tiers.
Pricing: Offers a free plan (with watermark). Paid plans start at about $20/month (annual billing) for basic featuressoftwareoasis.com. Higher tiers ( ~$40–60/month) unlock longer video durations, bigger stock libraries, and 4K exports. Free trial: Yes (you can test with watermarked exports).
Output: MP4 in various resolutions. Up to 4K output is supported on premium planssteve.ai. Also can export in vertical or square formats for social media.
AI Editing Style/Focus: Versatile (cartoon or live-action) – Steve AI is unique in offering fun animated videos from voiceovers (great for explainer videos, marketing, or educational cartoons), as well as standard stock-footage videos. The AI pacing can suit a promotional or tutorial style (e.g., moderate pacing, smooth transitions). It’s less about flashy TikTok cuts and more about creating a complete narrative video (e.g. a YouTube video or promo) with minimal manual work.

Wisecut

Features: An AI editor that turns long talking videos into concise clips. Wisecut’s main strengths are automatic silence removal and jump-cut editing – it detects dead air and cuts itwisecut.ai. Uniquely, it also does “AI highlight detection”, meaning it analyzes the speech to pick the most engaging parts and can snip out repetitive or low-value segmentslogicballs.com. It auto-zooms and punches in/out to make jump cuts look natural, and it adds subtitles and background music automatically. Essentially, it can take a rough recording and output a tighter, more engaging edit.
Google Drive Integration: Yes – Wisecut supports importing and storing projects via Google Drive, and even offers an API for integrationlogicballs.com. This makes it easy to automate (e.g., a new video file in Drive could trigger Wisecut via Zapier).
Limitations: Wisecut is focused on editing an existing video of a talking person; it does not automatically add unrelated B-roll clips on its own. The output style is usually the same footage just cut shorter (with jump cuts, subtitles, and music). So if you need a full B-roll montage video (voiceover with separate visuals), Wisecut alone isn’t enough – you’d use it for trimming the voice track and main footage, then overlay B-roll in another tool. Also, it’s geared toward short-form content (e.g. turning a 30-minute talk into a 5-minute highlight).
Pricing: Free tier available (watermarked, limited length). Pro plans were around $10–$15/month (exact pricing may vary; Wisecut’s site suggests a Pro tier with advanced featureslogicballs.com). Free trial: Yes, you can try basic features free.
Output: MP4 video, up to 1080p HD in free/standard plans; higher resolutions may be available with premium. It produces standard landscape videos (you can manually set aspect ratios for different platforms).
AI Editing Style/Focus: Vlog and interview highlight style – Wisecut produces fast jump-cut edits similar to YouTube vloggers or podcast highlight reels. The editing is fast-paced (silences gone, music ducking under speech) to keep viewers engaged. It’s ideal for talking-head content, podcasts, vlogs, or webinars where you want an automated tight edit with subtitles – but it doesn’t create flashy overlay graphics or stock cutaways by itself.

BIGVU

Features: BIGVU is an all-in-one video maker geared toward presenters. It includes a teleprompter app and an online editor. With the AI B-roll feature (available in their web studio), BIGVU will analyze your script or voiceover and automatically insert relevant cutaway images or footage at appropriate pointsbigvu.tvbigvu.tv. It uses a built-in stock library (royalty-free media from Pixabay) and also allows you to upload your own clips to use as B-rollbigvu.tv. Other features: auto-captions, background music, title graphics, and even AI voice-over or avatar generation if needed. It’s cloud-based (login via browser) and also has mobile apps for recording.
Google Drive Integration: Indirect. BIGVU doesn’t natively sync with Google Drive, but you can import your own assets by uploading through the web interface. (Your projects live on BIGVU’s cloud). For workflow automation, BIGVU can integrate with social media (one-tap sharing) but doesn’t have Zapier support for Drive as of now.
Limitations: The automated B-roll is primarily based on script text. This works best if you have a script prepared (BIGVU is popular for teleprompter users reading a script). If you only have an MP3, you may need to upload it and get it transcribed to use the B-roll tool. Also, the B-roll selection from Pixabay is generic – context matching is based on keywords, so sometimes the image chosen might be tangential. You have the option to swap or remove any B-roll the AI addsbigvu.tv. Lower-tier plans limit the video length (e.g. ~9 minutes on Starter) and might only export up to 720p.
Pricing: Free plan available (videos up to 9 min with BIGVU watermark)aihungry.comaihungry.com. Starter plan is ~$18/month (removes watermark, HD1080p up to 9min)aihungry.com. AI Pro plan $39/month extends length (59 min) and 4K qualityaihungry.com. Team plans for multiple users ($33/user). Free trial: Yes (the free tier can be used to test features, and there’s a 7-day trial of premium in some cases).
Output: MP4 downloads or direct share to YouTube/Facebook. Supports 16:9, with options to convert to square or vertical in the composer. Quality up to 4K on higher plansaihungry.com.
AI Editing Style/Focus: Presenter and educational videos – BIGVU is tailored for business, news, or instructional content where someone is speaking to camera with a script. The AI B-roll overlays give it a presentation style (think a newscaster with images appearing next to them, or a slideshow with voiceover). It’s good for corporate videos, real estate tours, how-to explainers, etc., where a polished but not overly cinematic style is needed.

Submagic

Features: Submagic is an AI video editor aimed at short-form content (TikTok, Reels, Shorts). It can auto-generate captions (with stylish effects), trim videos to find the best segments, and – importantly – has a “Magic B-Roll” feature that inserts relevant stock footage or images over your video with one clicksubmagic.cosubmagic.co. It transcribes your speech and uses AI to pick B-roll that matches what you’re saying, saving you the time of searching for clips. You can even control how much B-roll is added (e.g., 20% of the time vs 50%) bigvu.tv. The B-roll library includes free stock (generic footage) and premium stock via Storyblocks for higher-tier users sendshort.ai. Submagic also adds other engaging elements: emojis, GIFs, sound effects, and transition effects automatically to give your video a dynamic social-media-friendly looksubmagic.cosendshort.ai.
Google Drive Integration: Not built-in, but Submagic supports Zapier, which means you can create an automation (for example, when you add a video or audio file to a Drive folder, Zapier could send it to Submagic for processing). Many agencies use it in workflows with other apps. Direct upload from local or cloud storage is via the web app interface.
Limitations: Designed for videos up to a few minutes (depending on plan, e.g. Starter plan limits 2 min clipssendshort.ai). It’s geared towards augmenting an existing main video (usually of you speaking) – so it assumes you have an A-roll video track; it will overlay B-roll on top. If you only have a voiceover and no main footage at all, Submagic might still generate a video by treating the voice as primary, but it truly shines when you have a talking-head video to enhance. Also, automated context matching is not perfect; you might occasionally get an odd stock clip if the script had uncommon phrases. On the lowest plan, you can’t use custom templates and video length is very shortsendshort.ai.
Pricing: Free trial with watermark is available. Paid plans: Starter ~$20/month (up to ~20 videos/month, 2 min each) sendshort.ai; Growth ~$50/month (5 min videos, premium stock, unlimited count)sendshort.ai; Business ~$150/month (longer 30 min videos, for agencies)sendshort.ai. Discounts apply for annual billing.
Output: MP4 downloads, optimized for vertical 9:16 format (since it’s for TikTok/Reels, though you can create landscape as well). Up to 4K export on higher plans (Growth and above support 4K) sendshort.ai. Comes with hardcoded subtitles and all the added overlays in the final render.
AI Editing Style/Focus: Social media “viral” style – fast cuts, big bold captions, emojis popping up – Submagic’s edits are flashy and designed to keep viewers from scrolling away. It’s focused on engagement: expect zoom cuts, meme GIFs, and punchy B-roll that emphasizes points (e.g., talking about “fire results” might trigger a stock clip of flames 🔥). This tool is ideal for creators making energetic videos, like vlogs, listicles, or promotional clips, where a lot of visual variety is needed in a short span.

Kapwing

Features: Kapwing is a popular online video editor that has added strong AI capabilities. It offers an AI Video Generator where you can simply input a topic or script and it will generate a complete video with voiceover, matching B-roll images/videos, subtitles, and musickapwing.comkapwing.com. It can even use an AI “Persona” avatar to present on camera if desired, though you can disable that for just voice-over. For your use-case, Kapwing can import your own voiceover MP3: you would upload the audio into a project, use auto-transcription, and then apply its “Smart B-roll” tool, which scans the transcript and finds relevant visuals to overlay kapwing.com. It also has tools to automatically remove silences or enhance audio. Beyond AI, Kapwing provides a full editing studio in the browser (so you can manually refine what the AI does).
Google Drive Integration: Kapwing supports importing files via URL, so if your Google Drive file is shareable via link, you can paste that to import. It also has a direct Google Drive import plugin for some browsers (and you can export finished videos to Drive manually). For automation, Kapwing doesn’t natively have Zapier integration as of writing, but you can use its API or third-party scripts to connect Drive if needed.
Limitations: Transcription-based visuals – the AI chooses stock clips by keywords, which means it’s not reading comprehension at a human level. So, while it usually finds on-topic footage, sometimes the match might feel generic. You should review the timeline to ensure each B-roll clip truly fits the narration. Kapwing’s fully automated mode (from just a text prompt) is limited to videos under 5 minutes currently kapwing.com – for longer content, you’d do a bit more manual step-by-step (which the tool’s interface makes easy). Free users have some limits (watermark and 3 hours of export per month limit).
Pricing: Free plan with core editing features (exports are limited to 7 minutes each and 3 hours per month, and include a small watermark on longer videos). Pro plan is $24/month (or $16/mo billed annually)speechify.com – this gives unlimited length exports, no watermark, 1080p quality, and Workspace collaboration. There’s also a Business plan ($50+/month) for teams with brand kit, higher limits, and priority processing kapwing.combigvu.tv. Free trial: You can use the free plan to test AI features (most are available to free users, just with aforementioned limitations).
Output: MP4 in up to 1080p HD on Pro. (4K is not yet widely supported on Kapwing – it caps at 1080p for exports). Supports all aspect ratios and will output in the format you design (wide, vertical, etc.). Also supports direct publishing to YouTube or social accounts.
AI Editing Style/Focus: Flexible and adaptive – Kapwing’s AI can produce a range of styles, from a fast-paced TikTok (with auto-subtitles and jump cuts) to a corporate explainer with stock footage and a voiceover. It has style templates (e.g., professional, casual, etc.) to influence the tone of the AI-generated script and visualskapwing.com. Overall, it’s a general-purpose editor: the AI assists in content assembly, but you have full manual control to achieve the style you want. This makes Kapwing suitable for many contexts – marketing videos, educational content, social media clips – with the final quality depending on how much you refine the AI’s first cut.

VEED.io

Features: VEED is another online editor that has embraced AI for video creation. It offers text-to-video generation (turn a prompt or blog post into a video with voiceover and B-roll), as well as an AI clip editor that can find highlights and even suggest titles. For your scenario, VEED’s AI Stock Video Generator will auto-curate stock footage or even create visuals with generative AI based on your scriptveed.io. You can upload your voiceover, get an automatic transcript, then use the AI “Auto B-roll” feature to fill in visuals on the timeline. VEED also has auto subtitle generation and can translate or dub videos with AI. Another neat feature is “AI Scene Detection” – it can detect topic changes or scenes in the transcript to split your video accordingly, which helps in inserting relevant B-roll per scene. Like Kapwing, VEED provides a full editing timeline for adjustments.
Google Drive Integration: VEED doesn’t directly sync with Drive, but you can import files via URL or browse your local Drive folder to upload. It saves projects in the cloud on its own servers. For automation, VEED has an API and some Zapier integration (you could potentially trigger a render via API, though this is a more advanced use-case).
Limitations: The generative visuals (using AI art for B-roll) are experimental – sometimes you get an abstract image that loosely fits the concept. The stock footage auto-curation is better for concrete topics. VEED’s free version has strict limits (watermark, 10 mins export length, 720p max). Also, some of the cutting-edge AI features (like their new “describe your video and auto-edit” tool) might still be in beta, so expect occasional quirks. As with others, always review the AI-edit because context matching can err (e.g., homonyms in your script could confuse it).
Pricing: Free plan (export up to 720p, watermark, 10 min length). Basic ~$18/mo (no watermark, 1080p, 25 min length), Pro ~$30/mo (4K, 2-hour length, brand kit), Business ~$59/mo (higher limits and collaboration)saasworthy.comspeechify.com. Free trial: VEED offers a free plan rather than a timed trial, so you can test features under the free limitations.
Output: MP4 or various common video formats. Up to 4K resolution on Pro plan. Can export in vertical, square, or any aspect ratio you set up. Also allows you to directly generate GIFs or smaller clips from your video if needed.
AI Editing Style/Focus: Contemporary content marketing – VEED’s AI is positioned to help marketers and content creators produce videos quickly. It tends toward a polished style with captions, stock footage, and smooth transitions. You can specify themes (e.g., “inspirational promo” vs “news report”) and it will adjust music and pacing accordingly. In general, expect a clean, modern editing style (less meme-like than Submagic, but still engaging). VEED is often used for product promos, social media ads, and repurposing long videos into short summaries. It also supports creative formats (like turning a text article into a video), making it a versatile choice.

Captions.ai

Features: Captions started as a mobile app for auto-captioning talking videos, but it has evolved into a full AI-powered creative studio. It is ideal if you have a raw talking video or a voiceover. Captions.ai will transcribe the audio and automatically edit the video for you – this can include cutting out parts (it uses AI to find the most engaging bits), adding subtitles, B-roll, images, background music, and even sound effects without you doing any manual editingcaptions.aicaptions.ai. Essentially, you press an “AI Edit” button and it creates a refined video with jump cuts and overlays. It supports “Magic B-roll” similar to others – you can let it insert relevant images or video clips to cover your A-roll. It also has fun features like an AI hook generator (it might suggest a snappy intro clip), and an eye-contact corrector (if you had video of a person not looking at camera). Captions.ai works on mobile (iOS/Android apps) and desktop (there’s a web and a dedicated desktop app).
Google Drive Integration: No direct integration. However, since it’s available on mobile, you could have your Google Drive (or Google Photos) synced to your phone and import files that way. On desktop, you open files from your computer (so you’d need to download from Drive first). Projects can be cloud-synced in Captions’ own cloud if you log in with the same account on different devices.
Limitations: The fully automated editing currently shines with short talking clips (e.g. under 10 minutes); it’s tailored to creators making snappy social videos. If your voiceover is an hour-long podcast, Captions.ai can transcribe it, but the auto-editing to a short highlight reel might need your guidance (it does have an AI clip generator to pick highlights though). The B-roll and image generation in Captions are relatively new – sometimes the “custom B-roll” it adds might be a bit generic. Also, the app interface is very simplified; for longer projects, some users find they want more manual control than the mobile UI allows (though you can export to a traditional editor if needed).
Pricing: Captions.ai is free to use for many features (they want to attract users to the app). The Pro plan is $9.99/month (or ~$54.99 yearly) which gives unlimited AI projects, watermark removal, and faster processingapps.apple.com. They also have a higher “Max” plan around $24.99/month for power users (this might unlock even faster rendering or additional stock assets). Free trial: Yes, the free tier is quite usable for trial (videos will have a small watermark on free plan).
Output: MP4 video up to 1080p. (4K not yet in the app to my knowledge). On mobile you can share directly to social apps. Captions and graphics are burned in. It can do various aspect ratios; typically you’d choose 9:16 or 16:9 when starting a project.
AI Editing Style/Focus: “Talking video” for social media – The style is similar to Submagic and Jupitrr: you’ll see jump cuts at every sentence, dynamic captions (often word-by-word animations), and relevant emojis or images popping up to reinforce what’s saidcaptions.ai. It excels at making a single-person talking clip really engaging with minimal effort. The pacing is upbeat. Captions.ai is used a lot for TikToks, Instagram reels, or YouTube Shorts where a person speaks to camera and you want automatic cuts and subtitles in a trendy style. (If you need a slower, cinematic B-roll montage, this might not be the first choice; it’s optimized for fast, subtitled commentary videos.)

Each of these platforms can help you go from a voiceover + assets to a finished MP4 automatically. They differ clear – some are better for short-formulary social media content, others for longer informative videos – so your choice might depend on the style and length of video you need:

• For fully automated “talking head” social videos with flashy captions: consider Submagic or Captions.ai (both have free trials, with Submagic offering more web editing tools and Captions being very mobile-friendly).

• For turning a narrated script into a polished video with stock footage: Pictory and Steve AI are excellent. Pictory is great if you start from text or want a lot of stock B-roll, while Steve AI lets you choose animated or live-action styles and handles voiceover input directlysteve.aisteve.ai. Both have free trials.

• For trimming down long recordings (podcasts, webinars) and maybe later adding visuals: Wisecut (auto-cut and highlight) or Opus Clip (not listed above, but an honorable mention for auto-generating short highlights with B-roll – it even supports Google Drive links for input)opus.proopus.pro.

• For a teleprompter-style or presenter video: BIGVU is designed for that workflow and can save you a ton of editing time with its AI cutawaysbigvu.tv. There’s a free plan to try, and it’s very much plug-and-play for business videos.

• General-purpose online editing with AI assist: Kapwing and VEED are strong choices. Both support Google Drive import (via link) and have free tiers. They give a nice balance between automation and manual control.

All of these tools output standard MP4 files and support at least 1080p HD. Most offer a free trial or free tier, so you can experiment to see which AI editing style fits your project. With the right tool, you’ll be able to drop your voiceover and assets in a folder, and have the AI assemble a first cut of your B-roll video within minutes – a huge time-saver for content creators.

Sources: The information above is compiled from official platform documentation and reviews: Pictory’s documentation on Drive integration kb.pictory.ai, a comparison of Pictory vs Steve AI pricing softwareoasis.com, Wisecut’s feature overview logicballs.comlogicballs.com, BIGVU’s AI B-roll announcement bigvu.tv, Submagic’s product review (features & pricing) sendshort.ai, Kapwing’s AI generator description kapwing.com, VEED’s feature pageveed.io, and Captions AI’s website and reviews captions.aiapps.apple.com. These illustrate the tools’ capabilities in automated voice trimming and visual storytelling with AI.