Synthesys Review (2023) AI text-to-speech With Human Voices

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Content reigns supreme in digital marketing. Among the myriad forms of content, videos are immensely potent, garnering shares 1200% more than text-based content. However, video production can be a daunting and costly task. Enter Synthesys, an Artificial Intelligence (AI) powered video generator that simplifies the process and offers a cost-effective solution to video creation.

This in-depth analysis of Synthesys will delve into its key features, benefits, pricing, and potential alternatives. By the end of this review, we aim to provide you with a comprehensive understanding of why Synthesys is considered a top-tier AI video generator and whether it’s a worthy investment for your business.

Synthesys Overview

Synthesys is an AI-fueled video generator equipped with advanced technology that creates realistic voiceovers with a human touch. The magic begins when you type in the text. Leveraging its Text-to-Speech technology, Synthesys converts text into high-quality voiceovers.

Synthesys boasts an impressive library of over 300 voices in 140 languages, allowing users to personalize the voice to their liking. Users can customize the voiceover per their requirements by selecting the emotion and adjusting the pitch, emphasis, and pauses.

Moreover, Synthesys’ Text-to-Video technology enables users to choose from more than 80 avatars to lip-sync the typed text. With over 50 templates available for customization, users can add subtitles, images, text, shapes, and more to match their branding.

The platform’s capabilities extend beyond voice generation. Synthesys also offers an AI Image generator that utilizes algorithms to create realistic images based on text inputs. It’s a robust tool for creating diverse video content, from sales videos and How-To guides to social media posts and podcasts.

Key Features

Let’s delve into the key features of Synthesys, all of which have been personally tested:

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

1. AI Voice Generator

AI voice generator

Synthesys’ AI Voice Generator is a leap into the future of voice generation. The generator features a user-friendly interface and over 300 voices in 140 languages.

Synthesys offers many synthetic human voices capable of conveying various emotions. Users can adjust the Rate, Pitch, Emphasis, and Pauses to create the perfect tone for their projects.

The AI Voice Generator also offers Multi-Voice functionality, enabling users to create conversational voiceovers using different voices within a single audio file.

Multi-Voice functionality

The AI Voice Generator also includes Synthesys’ AI-powered assistant, a ChatGPT-like conversational AI chatbot. It generates hyper-relevant and up-to-date content, allowing users to produce unique and engaging copy for both AI voices and humans across 24 languages.

AI chatbot

Synthesys’ AI Voice Generator is a game-changer, providing a user-friendly, flexible platform with many voice actors. The resulting voiceovers sound authentic, making it the perfect solution for saving time and money on hiring voice actors or doing voiceovers yourself.

2. AI Video Generator using AI Humans

AI humans

Synthesys’ AI Video Generator elevates video creation by merging human-like avatars and artificial intelligence. With over 80 diverse avatar options, users can select the perfect AI human to represent their brand authentically.


Users can personalize their videos by adding backgrounds, text, images, transitions, titles, shapes, and other elements. The customization options are available on the left navigation bar.

Customization tools

Synthesys also offers an Advanced Video Editor, which allows users to refine every detail of their videos, ensuring professional-quality results. The AI Video Generator is fun, easy to use, and delivers high-quality, authentic, and engaging videos.

3. AI Image Generator

AI Image Generator

The AI Image Generator by Synthesys offers a wide array of stock images and art. It allows users to produce endless variations and convert sketches into lifelike images, enhancing facial features with Face Enhancement.

AI Image Generator Test

Synthesys’ AI Image Generator provides a user-friendly interface, making image generation a breeze.

Pros & 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.
  • User-friendly and easy to navigate, the platform is easy to use.
  • Adjust voice tone, pitch, and speed with various customization options.
  • Match brand colors or add your company logo for increased brand recognition.
  • Knowledge base or contact support via email when you need help.
  • Prompt and helpful customer support.
  • It runs on your Internet browser.


  • 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.


Monthly Pricing Monthly Pricing

Annual Pricing Annual Pricing

Although Synthesys does not offer a free trial, it provides a full refund within seven days if users are unsatisfied. Synthesys also offers a commercial license with the software, allowing users to produce unlimited voice projects without worrying about copyright issues.

Audio Synthesys

Ideal 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

Ideal 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

Ideal 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.


Ideal for large companies and agencies.

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

Top 3 Synthesys Alternatives

If you’re interested in exploring other AI Video Generators similar to Synthesys, here are the top 3 alternatives:

1. Synthesia


Key features:

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

2. Deepbrain AI

Deepbrain AI

Key features:

  • Convert text to video in minutes.
  • Advanced AI avatars that look real.
  • Supports multiple languages.
  • Variety of video templates.
  • User-friendly online video editor.
  • Create a custom AI avatar that perfectly represents your brand.
  • Save up to 80% of your time and costs.

3. HeyGen


Key features:

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

Ideal User Base for Synthesys

Synthesys is a versatile tool suitable for a variety of users, including:

  • Marketers: Use Synthesys to create engaging video marketing campaigns in minutes.
  • Entrepreneurs: Enhance your brand image with high-quality AI avatars accurately representing your brand.
  • Educators: Create interactive and engaging E-learning content that captures students’ attention.
  • Content Creators: Generate captivating videos for social media platforms like YouTube and podcasts.
  • Sales Professionals: Communicate your products’ or services’ value through persuasive sales videos.
  • Small Business Owners: Save time and costs by leveraging Synthesys to create professional-quality videos without hiring expensive video production teams.


After a thorough analysis, it’s clear that Synthesys is a worthy investment. It offers a user-friendly platform, a wide range of features, and high-quality AI-generated videos and voiceovers.

Synthesys can be a game-changer for businesses, offering increased engagement and conversion rates. High-quality videos can be created cost-effectively with it, making it a worthwhile investment.

To find out if Synthesys is a fit for your business, read reviews, watch demos, and consider the value it could bring to your business.

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