How to make an explainer video with AI

An explainer video used to mean weeks of work: a copywriter on the script, a voice actor in a booth, an animator in After Effects, and a producer wiring it all together. AI tools have collapsed most of that into a single afternoon, and the result is good enough for marketing pages, product walkthroughs, onboarding, and internal training.

This guide covers the full workflow of making an explainer video with AI - writing the script, generating the voiceover, picking between AI avatars and screen recordings, animating the visuals, and stitching it all into a finished video. It also covers the tradeoffs between the main categories of AI explainer video tools so you can pick the right one for your topic.

What counts as an AI explainer video

The term covers a few different formats that all use AI somewhere in the pipeline:

• AI avatar explainers - A photorealistic or stylized AI presenter talks to camera while slides or B-roll play behind them. Tools: Synthesia, HeyGen, D-ID.
• AI animated explainers - Stock footage, motion graphics, and AI voiceover stitched together from a text prompt. Tools: Pictory, Invideo AI, Steve.ai.
• AI screen-recorded explainers - A real screen recording with AI-generated voiceover, animated cursor, and auto-zoom. Tools: Tight Studio, Loom AI, Screen Studio.
• AI text-to-video generators - Fully synthetic video generated from a text prompt. Tools: Sora, Runway Gen-3, Veo.

Each one is good at a different kind of content. The avatar tools sell well for corporate training. The animated tools work for high-level concept explainers. Screen-recorded explainers are the standard for product demos and software tutorials. Pure text-to-video is impressive but still inconsistent for instructional content.

Step 1 - Write the script with AI

The script is the foundation. Visuals are easier to fix than a confusing message.

Open ChatGPT, Claude, or Gemini and give it the topic, audience, and target length. A prompt that works well:

Write a 60-second explainer video script for [product or topic] aimed at [audience]. Use a friendly, second-person voice. Hook the viewer in the first sentence. Cover [3 key points]. End with one clear call to action. Format with one sentence per line so I can paste it into a teleprompter.

Read the draft out loud. If a sentence is hard to say, rewrite it. Cut anything you would not say to a coworker. Most AI drafts run 30% too long - trim until every line earns its place.

For longer explainers (2-5 minutes), structure the script in three parts: a hook (why should I care), the explanation (here is how it works), and a payoff (what to do next).

Step 2 - Generate the voiceover with AI

This is where the time savings show up most. AI voices are now indistinguishable from real narration for short-form explainer content, and you can regenerate a line in seconds when you change the script.

Three tools dominate this space:

• ElevenLabs - The most natural-sounding AI voice on the market. Multiple voices, fine control over stability and style, voice cloning available on paid plans. Free tier covers most short explainer videos.
• OpenAI TTS - Simple API with six default voices. Slightly less expressive than ElevenLabs but cheaper at scale.
• PlayHT - Strong for non-English languages. Good library of pre-built voices.

Paste your script in, pick a voice, and download the audio as MP3 or WAV. For an explainer video, pick one voice and stick with it - swapping mid-video sounds amateurish.

If your screen recorder has AI voiceover built in (see Step 4), you can skip this step entirely.

Step 3 - Pick the visual format

This is the biggest decision. The right format depends on what you are explaining.

AI avatar explainers work when the content is conceptual and the human element matters - HR training, compliance, leadership messages, sales pitches. Synthesia and HeyGen both let you pick a stock presenter or clone yourself from a short video. You paste your script, pick a background, and the avatar lip-syncs the narration. Limitations: avatars still look slightly uncanny, gestures are limited, and any product you mention has to live in a slide behind the avatar.

AI animated explainers work when you are explaining a concept that does not have a real product to film. Pictory and Invideo AI take a script, pull matching stock footage from Getty/Pexels, lay your AI voiceover over it, and add basic motion graphics. Output looks like a competent corporate video. Limitations: every video on these platforms ends up looking similar, and the stock footage rarely matches your topic exactly.

AI screen-recorded explainers work when you have a product, app, website, or workflow to show. You record your screen normally, generate the voiceover with AI, and let the tool add zoom, cursor effects, and captions automatically. This is the dominant format for SaaS marketing, software tutorials, and product onboarding because it shows the real thing instead of a stock-footage approximation.

AI text-to-video generators are mostly used for B-roll or social cuts as of mid-2026, not full explainer videos. Sora and Runway produce striking clips but cannot reliably hold a coherent scene for the 30-90 seconds an explainer needs.

Step 4 - Make an AI screen-recorded explainer video with Tight Studio

For most product, software, and tutorial topics, the screen-recorded format produces the best result with the least work. Here is the full flow.

1. Download Tight Studio and open the app
2. Pick a recording area - full screen, a specific window, or a custom region
3. Walk through the product or topic you want to explain, click through the UI naturally, then stop the recording
4. The recording opens in the built-in editor automatically
5. Open the AI voiceover panel and paste in your script
6. Pick a voice, generate the audio, and the editor lines it up with the timeline
7. The editor adds zoom animation on your clicks and cursor animation automatically - no manual keyframing
8. Trim dead air, add text annotations on key moments, and export

What AI does for you in Tight Studio

• AI voiceover - Generate narration from text, powered by ElevenLabs. Multiple voices, regenerate any line by editing the script
• Auto zoom on clicks - Smart zoom follows your cursor with motion blur and smooth panning, so viewers see the button you pressed without you having to point it out
• Animated cursor - The cursor is enlarged with click highlighting and optional click sounds, so it never gets lost in a busy UI
• Auto captions - Generate captions from the voiceover script for the 80% of viewers who watch on mute
• Multi-take recording - Record sections one at a time and combine them in the editor, so a mistake in step 4 does not mean restarting from step 1

The output is a polished explainer with auto-generated narration, animated visuals, and captions - the same shape as a hand-crafted Screen Studio or Camtasia export, with most of the editing work skipped.

Step 5 - Make an AI avatar explainer video with Synthesia or HeyGen

If you want a talking head and you do not want to record yourself, AI avatar tools are the fastest path.

1. Sign up for Synthesia or HeyGen and start a new video
2. Pick an AI avatar - stock presenters or your own cloned avatar on paid plans
3. Paste your script. The tool generates the voiceover and lip-syncs it to the avatar
4. Add slides or B-roll behind the avatar from the tool’s stock library
5. Adjust timing, pauses, and emphasis. Add background music if needed
6. Render and download the video

Synthesia is the category leader for corporate use and supports 140+ languages. HeyGen is better at expressive avatars and faster to iterate. Both produce output that works well for internal training and L&D, but viewers can usually tell the avatar is AI within a few seconds.

Step 6 - Make an AI animated explainer video with Pictory or Invideo AI

For high-level concept explainers without a product to film, animated tools assemble stock footage to your script.

1. Open Pictory or Invideo AI and start a new project
2. Paste your script or a prompt describing the video
3. The tool pulls stock clips, generates AI voiceover, and assembles a draft timeline
4. Review the auto-selected B-roll. Swap out clips that do not match your message
5. Add a brand intro, captions, and music
6. Export the video

These tools are fast - you can have a 90-second explainer in under 15 minutes. The downside is that the output looks generic and uses the same stock footage library as every other video built on the same platform.

Comparing AI explainer video tools

Tool	Format	Voiceover	Best for	Price
Tight Studio	Screen recording + AI	Built-in (ElevenLabs)	Product demos, tutorials, SaaS onboarding	Free tier / Paid
Synthesia	AI avatar	Built-in	Corporate training, multi-language video	Paid
HeyGen	AI avatar	Built-in	Personalized sales videos, social cuts	Free tier / Paid
Pictory	AI animated	Built-in	Repurposing blog posts into video	Paid
Invideo AI	AI animated	Built-in	Concept explainers from a text prompt	Free tier / Paid
Loom AI	Screen recording + AI	Built-in	Internal async messages with cleanup	Free tier / Paid
ElevenLabs + your editor	Voiceover only	Built-in	Any format, full editing control	Free tier / Paid
Runway Gen-3	Text-to-video	None	B-roll, social cuts, art direction	Paid

Tips for better AI explainer videos

A few things that separate a watchable AI explainer from one viewers click away from.

Start with the hook, not the intro. AI tools default to a “Hi, today we are going to talk about…” opener. Cut it. Your first sentence should state what the viewer gets if they keep watching.

Pick one voice and one format. Do not mix an AI avatar with a screen recording in the same video unless you are deliberately marking a transition. Viewers find the format switch jarring.

Slow the voice down 5-10%. Most AI voices default to a slightly rushed pace. A small slowdown reads as more confident and gives viewers a moment to follow what is on screen.

Add captions. Most explainer videos get watched on mute - in the office, on a phone in bed, on a train. Captions or on-screen text for key terms keeps viewers engaged when audio is off. AI tools can generate them from the script in one click.

Watch the playback on a phone. Most viewers are on mobile. UI text that looks fine on a 27-inch monitor often disappears at thumb size. Zoom in further than feels natural on a desktop.

Regenerate one line, not the whole video. AI voiceover tools let you regenerate single lines. If one sentence sounds off, fix it in the script and regenerate just that line - do not redo the whole audio.

Frequently asked questions

How do I make an explainer video with AI?

Write the script with ChatGPT or Claude, generate the voiceover with ElevenLabs or a built-in TTS, and pick a visual format that matches your topic. For product demos and software tutorials, record your screen and use a tool with AI voiceover and auto-zoom (Tight Studio, Loom). For corporate training, use an AI avatar tool (Synthesia, HeyGen). For concept explainers without a product, use an AI animated tool (Pictory, Invideo AI). Stitch the script, voiceover, and visuals together in the tool’s editor and export.

What is the best AI explainer video generator?

It depends on the format. For screen-recorded product demos, Tight Studio combines AI voiceover, auto-zoom, animated cursor, and captions in one app. For AI avatar videos, Synthesia leads on quality and language support. For animated explainers built from stock footage, Pictory and Invideo AI are the most established. There is no single tool that wins every category - pick based on whether your topic needs a real screen, an avatar, or stock footage.

Can I make an AI explainer video for free?

Yes, for short videos. ElevenLabs has a free tier for voiceover, ChatGPT and Claude both have free tiers for scripting, and several screen recorders (Tight Studio, Loom, ScreenPal) have free tiers. AI avatar tools like Synthesia and HeyGen are paid-only for usable output, though HeyGen has a limited free tier. Pictory and Invideo AI both offer free tiers with watermarks.

How long should an AI explainer video be?

Most explainer videos should land between 60 and 90 seconds for marketing and homepage use, and 2-5 minutes for product tutorials and onboarding. Anything over 5 minutes needs chapters and a strong reason for the extra runtime. AI tools make it easy to produce longer videos, but viewer attention has not changed - shorter is almost always better.

Do AI explainer videos look professional?

For most use cases, yes. AI voiceover from ElevenLabs is indistinguishable from human narration for short content. Screen recorders with AI voiceover and auto-zoom (Tight Studio, Screen Studio) produce output equivalent to a professionally edited demo. AI avatar tools are the most uneven - viewers can usually tell within a few seconds, which is fine for training videos but distracting for marketing. AI animated tools look competent but generic. The biggest factor is the script - a polished AI video with a weak script lands worse than a rough video with a clear message.

Can I clone my own voice for an AI explainer video?

Yes. ElevenLabs and HeyGen both offer voice cloning - you record 1-3 minutes of clean audio and the tool generates a model that can speak any script in your voice. The clone is good enough that most listeners cannot tell. Voice cloning is paid-only on both platforms. For one-off explainer videos a stock AI voice usually works fine; clones make more sense for ongoing series where consistency matters.

Should I use an AI avatar or screen recording for my explainer video?

Use an AI avatar when the content is conceptual, when human presence matters (training, sales, leadership), or when there is nothing visual to show. Use a screen recording when you have a real product, app, website, or workflow to demonstrate. For most SaaS marketing and product onboarding, screen recording wins because viewers want to see the actual product, not a presenter talking about it.

Can AI generate the whole explainer video, including the visuals?

Partly. AI animated tools (Pictory, Invideo AI) assemble stock footage to match your script, which is close to fully automated but uses pre-existing clips. Fully synthetic text-to-video tools (Sora, Runway Gen-3, Veo) can generate original video from a prompt, but as of mid-2026 they struggle to hold a coherent scene for a full explainer. The realistic answer today: AI handles the script, voiceover, captions, and assembly, while you provide the screen recording or pick the avatar.