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July 29, 2025 - 8 minutes

AI video generator tools: The future of visual storytelling is here

AI video tools are transforming how developers, designers, and marketers create dynamic, professional video content with just a script and a few clicks.

Ironhack

Changing The Future of Tech Education

Articles by Ironhack

Artificial Intelligence

Digital Marketing

AI is no longer just writing blog posts or generating still images. It’s now producing full-on video content. Whether you’re launching a product, telling a story, or designing a UX demo, AI video generator tools can help you go from script to screen faster than ever before.

The world of AI-powered video creation is expanding at an impressive pace. In 2023, the global AI video generator market was valued at approximately $554.9 million, and it’s on track to soar to nearly $2 billion by 2030, growing at a robust compound annual growth rate (CAGR) of around 20 percent. Another projection shows the market climbing from $0.69 billion in 2024 to $0.85 billion in 2025, representing a 22.9 percent CAGR. For creators, this isn’t just hype, it reflects a major shift in how content is made. AI tools like Synthesia, Sora, and Runway ML are no longer experimental; they’re becoming mainstream tools in marketing, UX demo creation, and learning, making the fast-growing video creation space a prime area to develop competitive, future-ready skills.

In this post, we’ll dive into the fast-growing world of AI-powered video creation. We’ll explore cutting-edge platforms like VEO3, Sora by OpenAI, Runway ML, HeyGen, Lumen5, and Synthesia. More importantly, we’ll show you how to use them. No camera, no crew, no problem.

What is an AI video generator tool?

An AI video generator tool uses artificial intelligence to automate parts or even all of the video production process. Depending on the platform, it can:

  • Take a script and convert it into visuals

  • Animate avatars to deliver a message

  • Generate scenes based on simple text prompts

  • Edit and enhance existing footage with minimal input

  • Add subtitles, transitions, and music automatically

This evolution means faster production cycles, drastically reduced costs, and massive creative freedom for teams of all sizes. If you’ve ever thought, “I have an idea, but I don’t know how to bring it to life on screen,” AI just changed the game.

Why does it matter? Real use cases in real time

For students or any tech-curious professional, these tools open doors to more impactful communication without the need for production teams or editing expertise. Here’s how they’re already being used today:

  • Capstone projects: turn your Figma prototype or code walkthrough into a narrated video presentation

  • Client work: pitch web designs or marketing concepts with animated mockups

  • Social media: generate scroll-stopping video content to boost engagement on LinkedIn or Instagram

  • Training and onboarding: build tutorials in multiple languages using AI avatars and script-to-video tools

  • Startup demos: instead of building a costly explainer video, use a tool like Sora or Lumen5 to create one within hours

Canadian content creator Pallavi Singh used HeyGen to produce a professional-looking video resume. She prefaced her pitch with an AI avatar that delivered her script on interviewing confidently (no camera or crew needed) and generated the clip in under five minutes. Her LinkedIn post showcasing the video received strong engagement and positive feedback from recruiters and peers, highlighting the tool’s effectiveness in boosting visibility and credibility quite literally off-camera.

The leading AI video generator tools in 2025

Let’s take a look at the platforms making the most impact this year.

1. Sora by OpenAI

Sora lets you create short, cinematic videos from simple text prompts. Think “a drone shot of a beach at sunset” or “a robot walking through a city street.” Sora interprets your prompt and brings it to life with realism.

Key features:

  • Context-aware motion and lighting

  • High-quality video renderings

  • Potential integration with ChatGPT for script generation

Best for: visionary concepts, mood boards, app launch teasers, and design storytelling

2. VEO3 by Google

VEO3 builds on Google’s years of AI development, offering high-resolution videos with realistic people, actions, and environments. It’s aimed at enterprise and education but is expanding accessibility.

Key features:

  • Ultra-realistic avatars and scenes

  • Tight integration with Google Workspace

  • Context-driven script editing

Best for: branded videos, corporate storytelling, educational content

3. Runway ML

Runway has become a favorite in creative circles. It allows for background removal, motion tracking, video inpainting, and more without any traditional video editing software.

Key features:

  • Motion brush to animate static elements

  • Text-to-video editing and style transfer

  • Green screen effects without a green screen

Best for: creative editing, marketing videos, interactive portfolios

4. HeyGen

HeyGen lets you create professional videos using digital avatars. Choose from a range of presenters, select your language, upload your script, and generate. Custom avatars can match your team’s voice and tone.

Key features:

  • Realistic facial expressions and gestures

  • Over 300 voices in more than 40 languages

  • Easy avatar customization

Best for: product explainers, sales videos, onboarding tutorials, multilingual pitches

5. Lumen5

Lumen5 is perfect for transforming blog content into videos. It’s optimized for speed and simplicity, turning bullet points or article paragraphs into animated scenes.

Key features:

  • Drag-and-drop editing

  • Built-in stock video and music

  • Auto-highlighted key phrases

Best for: content marketing, newsletter videos, YouTube shorts

6. Synthesia

Synthesia is trusted by thousands of companies to generate professional videos with high-quality AI presenters. Think of it as the PowerPoint of video production.

Key features:

  • Over 140 AI avatars

  • Support for more than 120 languages

  • Easy LMS and CMS integration

Best for: corporate training, internal communication, course creation, onboarding modules

How you can use AI video tools today: real-world workflows

Here are four practical ways you can start using AI video generators right now:

UX/UI case study presentation:

Use Lumen5 to highlight each step of your design process, then add a Synthesia avatar to narrate the insights.

Use Lumen5 to turn your case study into a visual story. Start by breaking your design process into clear steps such as research, wireframing, prototyping, and testing. Upload screenshots from Figma, add notes or captions, and pair each stage with short text explanations. Once the visuals are ready, add a Synthesia avatar to narrate your process and explain the thinking behind your choices. This approach helps hiring managers quickly understand your value as a designer. You can embed the finished video on your portfolio website or attach it when applying for jobs.

Hackathon submission:

Use Runway ML to create short screen capture animations, then use HeyGen to deliver the project summary.

When submitting a hackathon project, clarity and presentation matter. Use Runway ML to capture short animations of your UI or code in action. The motion brush tool can highlight how users interact with your product without any complex editing. Once the visuals are prepared, write a short script that summarizes your concept and goals. Then, use HeyGen to generate a digital avatar to deliver your pitch. This method helps your project look polished and professional, especially when you're working under tight time constraints.

Startup demo video:

Generate an intro video with Sora, then use VEO3 or HeyGen for the founder pitch segment.

If you're introducing a new product or startup idea, begin with a video created using Sora. A simple prompt like "collaborative workspace with animated UI" can generate an engaging visual intro. Follow up with a founder pitch using VEO3 or HeyGen. Choose or customize an avatar, write a focused script, and highlight your product’s features or value proposition. You can also add testimonials or a quick call to action. This kind of video can help you stand out when presenting to investors, accelerators, or early users.

E-learning module:

Build out content in a slide format, then use Synthesia or Lumen5 to convert it into engaging video lessons.

To create educational content, start by outlining your lessons in slides using a tool like Google Slides or Notion. Then, import your structure into Synthesia or Lumen5. In Synthesia, you can use avatars to deliver scripted lessons in a clear and consistent format. This works well for onboarding, tutorials, or course overviews. Lumen5 allows you to build animated scenes using text, stock visuals, transitions, and background music. You can also add captions and voiceovers to improve accessibility. These tools help you create professional-quality learning videos without a studio or editing skills.

Getting started: tips for beginners

You don’t need prior video editing experience to use these tools effectively. Here’s how to dive in:

  1. Define your objective: is this for storytelling, pitching, or teaching?

  2. Start simple: try Lumen5 or HeyGen to get familiar with the workflow

  3. Write for video: keep sentences short and conversational. Break ideas into digestible points

  4. Use visual cues: include UI elements, icons, or screenshots that match your message

  5. Test your output: watch it on desktop and mobile to catch layout issues or timing gaps

  6. Reuse your content: turn a blog post into a script or slice a long video into shorts for TikTok or Instagram Reels

Bonus tip: tools like Synthesia let you update your video by editing just the script. There’s no need to re-record anything. That’s a big win for iteration.

Cautions, challenges and ethical considerations

With power comes responsibility. While AI video tools are revolutionary, it’s important to use them ethically:

  • Be transparent: let viewers know the video was AI-generated, especially in training or HR contexts

  • Avoid deepfake risks: don’t use real faces or voices without permission

  • Check for bias: some avatar libraries lack diversity. Push for inclusive representation

  • Know your rights: review the licensing terms to know who owns the final output

These tools are exciting, but they’re also shaping how we trust digital media. Stay informed and act responsibly.

The takeaway: democratizing visual storytelling

We’re entering an era where a solo creator can build content that rivals traditional studio work. With tools like Sora, Synthesia, and Runway ML, you can create marketing assets, training content, or design showcases in hours instead of weeks.

Whether you’re building your portfolio, launching a startup, or breaking into tech, AI video tools can be a force multiplier. They lower the barrier to entry for telling impactful stories and help you stand out in an increasingly visual world.

So grab your idea, write your script, and let AI take care of the heavy lifting.

The director’s chair is open. Are you ready to sit in it?

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