Connect with us

Video Generators

Synthesys Review: The Best AI Video Generator? (July 2024)

Updated on

Unite.AI is committed to rigorous editorial standards. We may receive compensation when you click on links to products we review. Please view our affiliate disclosure.

Synthesys review.

Videos have become an essential element in marketing, generating 1200% more shares than text content.

Nevertheless, producing videos may be more time-consuming and expensive than one might think, especially when considering the expenses associated with renting a studio, getting the right lighting, purchasing high-end equipment, hiring a spokesperson, and more. This becomes even more challenging when you want to produce videos at scale.

Thankfully, with AI video generators like Synthesys, you can generate captivating videos simply by typing the text.

But that's not all Synthesys is capable of: it also has some new and powerful features, like the AI Voice and Image generator, which I will test personally. After that, we'll discuss the pros and cons of using Synthesys, pricing options, and alternatives.

By the end of this comprehensive Synthesys review, we'll explore why it is considered one of the top AI video generators on the market and determine if it is worth the investment.

What is Synthesys?

Synthesys homepage.

Synthesys is an AI-powered video generator with advanced technology to produce realistic and natural-sounding voiceovers using real human voices. Simply type the text, and Synthesys will use its Text-to-Speech (TTS) technology to transform it into high-quality voiceovers.

This powerful tool has an extensive library of over 300 voices in 140 languages. You can customize the voice exactly to your liking by selecting the emotion, such as cheerful, angry, or sad, and adjusting the pitch, emphasis, and pauses.

Using Synthesys' Text-to-Video (TTV) technology, choose from more than 80 avatars to lip-sync what you type. There are also over 50 templates to match your branding and make visual customizations by adding subtitles, images, text, shapes, and more.

In addition to its impressive voice generation capabilities, Synthesys offers an AI Image generator that uses algorithms to generate realistic images based on text inputs. This feature allows you to bring your ideas to life by creating visual representations of your concepts without the need for graphic design skills or expensive software.

Synthesys is great for creating all types of video content, including sales videos, How-To guides, social media posts, TV commercials, podcasts, and more. If you want to save time and money or are too shy to get on camera, Synthesys is the perfect solution.

Let's take a closer look at the main features offered by Synthesys and test them first-hand.

Synthesys Key Features

Here are the latest features of Synthesys which I have personally tested and used:

  • AI Voice Generator
  • AI Video Generator
  • AI Image Generator

AI Voice Generator

Using the AI voice generator in Synthesys.

Step into the future of voice generation with Synthesys' AI Voice Generator! It has a sleek and user-friendly interface with an impressive collection of over 300 voices in 140 languages.

No need to worry about robotic and monotonous voices: Synthesys offers a wide range of synthetic human voices that can convey many emotions ranging from fiery anger to heartwarming cheer and heart-wrenching sadness. Tweak the settings easily by adjusting the Rate, Pitch, Emphasis, and Pauses to create the perfect tone for your project.

There are no limits to your creativity, as Synthesys allows you to unleash your imagination with unlimited text input. The Multi-Voice functionality also lets you create conversational voiceovers using different voices for various sentences within a single audio file.

As you can see, I selected two voice actors in the same audio file to start having a conversation with each other:

Using the Multi-Voice functionality and having two AI voice actors talk to each other using Synthesys.

Synthesys makes everything easily accessible and organized when working on multiple projects by saving everything to My Studio. Plus, you can quickly and easily download the voiceovers and embed them seamlessly into any website.

If that's not enough, Synthesys' AI-powered assistant (the speech bubble in the bottom right corner) is a ChatGPT-like conversational AI chatbot equipped with the latest answers from Google. It generates hyper-relevant, factual, and up-to-date content, meaning you can produce unique and captivating copy for both AI voices and humans across 24 languages.

I asked the Synthesys AI Writer a question and, in seconds, had an answer that I can now use as copy:

Asking the Synthesys AI chatbot a question and getting an answer.

From my experience, everything within Synthesys' AI Voice Generator is seamless. The interface is clean and user-friendly, it's very flexible, and you can access countless voice actors ranging in age, gender, ethnicity, nationality, language, mood, etc.

When playing back the copy I had written, everything sounded authentic and flowed seamlessly, as if an actual human had said those words. It's the perfect solution for saving time and money on hiring voice actors or doing voiceovers yourself, and this is just one example of how AI business tools are transforming the way we approach tasks that used to require a human touch.

AI Video Generator using AI Humans

The AI humans available on Synthesys.

Elevate your video creation with Synthesys' cutting-edge AI technology, where you can seamlessly merge the power of human-like avatars and artificial intelligence. With over 80 diverse avatar options, you can select the perfect AI human to represent your message authentically.

Start with the default template or choose from over 50 premium templates crafted by industry experts to match your branding.

The templates available on Synthesys.

You can also personalize your videos by effortlessly adding backgrounds, text, images, transitions, titles, shapes, and anything else you need to create a truly captivating video. Match your brand colors or add your company logo to keep branding consistent. You can find these personalization options on the left navigation bar.

The customization tools available on Synthesys for AI video generation.

To create a compelling narrative, you can add multiple scenes and transitions to one video. Plus, you can enhance accessibility and engagement with subtitles to ensure your message reaches the widest audience possible. Or take your AI video generation to the next level with the Advanced Video Editor, which allows you to refine every detail and ensures your videos achieve professional-quality results.

The AI Video Generator using AI Humans is fun and easy to use with a clean interface. The results are also impressive, delivering videos that appear authentic and engaging. Plus, you can translate videos in the script into over 30 languages and change the speed and pitch to your liking.

With Synthesys, you can embed AI humans onto any website!

AI Image Generator

Generating images using the Synthesys AI image generator.

Synthesys doesn't just bring AI to video creation but also image generation!

The Synthesys' AI Image Generator gives you access to infinite stock images and art. With it, you can produce endless variations and convert sketches into lifelike images. You can also elevate facial features with Face Enhancement.

When creating images with text using the Synthesys AI Image Generator, describe the image (you can also drag and drop an image to create variations or use the inpainting feature to restore missing elements). Next, select the size, resolution, artist inspiration, or style in the settings panel. Click “Visualise” to start generating.

After a few seconds, Synthesys will generate four high-resolution images based on your text prompt that you can download or create variations of!

Generating four images of a man riding a horse using the Synthesys AI image generator.

If the resolution isn't to your liking, you can upscale your pictures to impressive 2K and 4K quality. Besides generating images with text prompts, Synthesys removes image and video backgrounds and objects.

Overall, my experience with Synthesys' AI Image Generator was excellent, and I'm impressed with the results! The interface is clean and easy to navigate, and generating the images was a breeze.

Pros and Cons

  • High-quality AI-generated voices that sound natural and human-like.
  • Over 300 voices in 140 languages with subtitles.
  • Wide range of emotions and voice settings to customize the AI-generated voices according to your preference.
  • Conversational AI chatbot with real-time data from Google.
  • More than 80 human-like avatars to choose from.
  • Includes AI image generator.
  • The platform is user-friendly and easy to navigate.
  • Adjust voice tone, pitch, and speed with various customization options.
  • Match brand colors or add your company logo for increased brand recognition.
  • Customization options for generated videos can be limiting.
  • The AI technology used by Synthesys may have a learning curve, especially for those unfamiliar with similar video editing software.
  • Voices and avatars sound and look realistic, but you still may be able to tell that it is created with AI.
  • Videos can take some time to render.


Synthesys monthly pricing.
Synthesys monthly pricing
Synthesys annual pricing.
Synthesys annual pricing

Unfortunately, Synthesys does not come with a free trial. However, if you try any plans, keep your receipt, and you'll get a full refund after seven days if you are unsatisfied!

Note: Synthesys offers a commercial license with the software, allowing users to produce unlimited voice projects without worrying about copyright issues.

Audio Synthesys

Best for those only interested in AI voiceovers.

Price: $35/month or $27/month billed annually (save 20%).

  • Unlimited downloads of voice-overs.
  • Access to 38 voices performed by real humans.
  • Access to 140 languages and a total of 374 voices.
  • The platform is fully web-based.

Human Studio Synthesys

Best for those only interested in AI video generation using AI humans.

Price: $45/month or $36/month billed annually (save 20%).

  • Unlimited Videos.
  • 73 Humatars (including Extra Outfits).
  • Access to 140 Languages & 374 Voices.
  • Upload Your Voice.
  • Complete Video Customization.
  • Fully Web-Based.

Audio and Human Studio Synthesys

Best for those interested in AI voiceovers and AI video generation.

Price: $65/month or $52/month billed annually (save 20%).

  • Unlimited access to both the Video and Voice Over software.
  • All features included.


Best for large companies and agencies.

Price: Reach out to the Synthesys team for a custom plan!

Top 3 Synthesys Alternatives

If you're curious about other AI Video Generators similar to Synthesys, here are the top 3 Synthesys alternatives worth checking out:

  1. Synthesia
  2. Deepbrain AI
  3. HeyGen

1. Synthesia

Synthesia homepage.

Key features:

  • Transform text into engaging videos using AI avatars and voiceovers.
  • More than 140 diverse AI avatars.
  • Over 120 languages.
  • Automatic closed captions.
  • Clone your own voice.
  • Create your own AI avatar/digital twin!

Synthesia is an AI video generation platform very similar to Synthesys. It allows you to create professional-looking videos with more than 140 diverse AI-generated avatars speaking more than 120 languages.

With Synthesia, you can easily convert text into engaging videos. It comes with some special features, like the ability to clone your own voice and create an AI avatar!

2. Deepbrain AI

Deepbrain AI homepage.

Key features:

  • Create a video from text within 5 minutes.
  • Advanced AI avatars that look real.
  • Supports multiple languages.
  • A range of video templates to get started quickly.
  • User-friendly online video editor.
  • Create a custom AI avatar that perfectly represents your brand.
  • Save up to 80% of your time and costs.

Deepbrain AI offers a revolutionary video creation tool that transforms text into videos within 5 minutes. Its state-of-the-art AI avatars appear so realistic everyone will be fooled.

It also supports multiple languages and has diverse video templates for personalization. The user-friendly online video editor enables easy navigation and the creation of custom AI avatars tailored to represent your brand accurately, ultimately saving you up to 80% of time and costs.

Read our DeepBrain AI Review or visit DeepBrain AI.

3. HeyGen

HeyGen homepage.

Key features:

  • Convert text to video in minutes.
  • Choose from over 100 diverse and customizable realistic avatars.
  • Lip-sync with 300+ voices in over 40 languages.
  • No video editing skills are required.

HeyGen empowers users to transform text into captivating videos swiftly within minutes. With a vast selection of over 100 diverse and customizable realistic avatars, you can craft personalized characters to suit any occasion, whether that's How-To, marketing, E-learning, or training videos.

Enhance the storytelling experience by seamlessly lip-syncing with over 300 voices in more than 40 languages, adding authenticity to every video. Best of all, HeyGen requires no video editing skills, making it accessible to users of all levels while maintaining professional and impressive results.

Read our HeyGen Review or visit HeyGen.

Release News - HeyGen v3.0 with new TalkingPhoto Generation, URL to Video, Text 2 Image, and more!🎉

Who Should Use Synthesys?

Synthesys is a versatile tool suitable for sales videos, How-To guides, social media posts, advertising, podcasts, and more. This makes it an excellent investment for the following types of people:

  • Marketers: Use Synthesys to create engaging video marketing campaigns in minutes.
  • Entrepreneurs: Enhance your brand image with high-quality AI avatars that accurately represent your brand and resonate with your target audience.
  • Educators: Create interactive and engaging E-learning content that captures students' attention and facilitates effective learning.
  • Content Creators: Generate captivating videos for social media platforms like YouTube, podcasts and more to attract and engage a wider audience.
  • Sales Professionals: Create persuasive sales videos that effectively communicate the value of your products or services and boost conversion rates.
  • Small Business Owners: Save time and costs by leveraging Synthesys to create professional-quality videos without hiring expensive video production teams.

Synthesys Review: Worth the Investment?

After trying Synthesys for myself, I confidently say that Synthesys is worth the investment. The AI text-to-speech voice generator and AI video generator are impressive, offering over 80 diverse avatars saving you time and effort in creating high-quality videos.

Its user-friendly interface and wide range of features make it accessible to users of all levels, including those with no video editing skills. The ability to seamlessly lip-sync with over 300 voices in 140 languages using real human voices adds authenticity, which is crucial in today's global market.

Synthesys' wide range of features and realistic avatars make it accessible and engaging for users of all backgrounds. Whether you're a student, a content creator, a sales professional, or a small business owner, Synthesys can help you create compelling videos that capture your audience's attention and deliver your message effectively.

Consider the value it brings your business, like increased engagement and conversion rates. Read reviews like this and watch demos to determine if Synthesys is worth investing in. You might as well give it a shot or your money back!

Click Here to visit Synthesys

Janine Heinrichs is a Content Creator and Designer helping creatives streamline their workflow with the best design tools, resources, and inspiration. Find her at