Synthesys Review 2025: Features, Performance and Alternatives
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7/10 Synthesys: Text to Video with Human Avatars
Summary: Synthesys is a platform to create AI images, AI voiceovers, and AI video generation tools with human avatars. Avatars need polishing, and the video editor needs improvements. This review will help you understand the platform's ins and outs and help you decide if it meets your needs. Pricing: From $20/month. Free trial with no credit card. |
Creating professional-quality videos can be costly and time-consuming. It requires expensive equipment, skilled talent, and countless hours of production and editing.
If you are tired of those issues, Synthesys may be a good alternative. This AI-based creation platform features AI human avatars, AI voices, and text-to-video functionality to streamline the video creation process, but does it deliver on its promises?
In this review, I will examine Synthesys’s features, performance, and pricing in depth, providing practical insights to help you decide whether it’s the right solution for your video production needs.
What are Synthesy's benefits?
- Eliminate the need for human actors: Synthesys provides realistic AI human avatars that eliminate the need to cast, hire, and manage actors, saving you significant time and resources while ensuring you find the perfect representation for your target audience.
- Zero equipment investment: The platform handles all technical aspects of video production in the cloud, so you don´t have to worry about purchasing, maintaining, or learning to use expensive filming equipment.
- Dramatic cost reduction: By eliminating actors, equipment, locations, and production crews, Synthesys delivers professional-quality videos at a fraction of traditional production costs.
- Consistent performance quality: Unlike human actors whose performances may vary, AI avatars deliver the same high-quality results every time, ensuring your message is conveyed precisely as intended across all your content.
- Rapid production timeline: You can create complete videos in minutes rather than days or weeks, allowing you to respond quickly to market opportunities or content needs without lengthy production schedules.
- Personalization at scale: Generate highly customized videos for different audience segments or even individual recipients by creating custom digital avatars and tailoring messages specifically for them.
- Accessibility for non-technical users: The intuitive interface requires no specialized video production knowledge, making professional video creation accessible to marketers, educators, and content creators of all skill levels.
- Multilingual capabilities: With support for 140+ languages, you can easily create localized versions of your videos without additional recording sessions or translation costs.
- AI-powered creative assets: The platform allows you to generate custom images and visual elements directly, reducing your dependence on external resources or stock media libraries.
Of course, Synthesys doesn´t replace professional video suites like Camtasia, Filmora, DaVinci Resolve, or similar ones because these have complex editing and effects capabilities. Still, it is a good complement to have in your video toolbox.
Furthermore, while Synthesys offers many advantages, there are also some issues to consider when we compare AI video makers to traditional video creation:
- Limited Creativity: AI can generate impressive visuals and voiceovers, but it may lack the creativity and emotional depth that human artists and actors can bring to a project.
- Deepfakes and Misinformation: AI-generated content can be used to create misleading or harmful content, raising ethical concerns about its use and regulation.
- Subscription Fees: While Synthesys can reduce labor costs, it often requires a subscription fee or per-minute usage charges.
Who is Synthesys for?
Course Creators and Educators
If you need to create engaging video courses, Synthesys is ideal for creating course videos with human-like AI avatars. These avatars make it easier to deliver educational content effectively without the need for expensive production teams.
Marketers and Advertisers
Synthesys is a good option for marketers because it can create professional-quality video ads, sales letters, and promotional content. Its AI avatars and voiceovers help capture attention, drive conversions, and personalize campaigns for different audience segments.
Businesses Expanding Globally
Synthesys supports over 140 languages, making it an excellent choice for businesses looking to localize their content. With it, you can easily create multilingual videos to reach global audiences without additional translation or recording costs.
Podcast Creators
Synthesys' voice cloning and text-to-speech features are perfect for podcast creators. It can help streamline production and ensure consistent audio quality.
Small Businesses and Entrepreneurs
If you have limited technical expertise or a tight budget, Synthesys provides an intuitive interface and affordable plans. It allows businesses to create professional videos without hiring a production team or investing in expensive equipment.
Social Media Managers
Synthesys is excellent for creating quick, eye-catching videos for social media platforms. Its AI-generated avatars and voiceovers help produce stand-out content even with limited resources.
Synthesys main features
This platform offers three main products.
- AI Voices: To create voiceovers with quality voice actors from text-to-speech input. A wide range of accents and languages are available to find the perfect tone and emotion.
- AI Humans: This feature allows you to create videos with real-life actors. You type in a text and choose an avatar, then the system generates a video in minutes.
- Synthesys Lab: Here, you can generate AI images and AI videos, take photos, and create images and videos from text in Canva.
Let´s check the main features in detail
Languages and voices
- Audio render: From 2 minutes in the Free Plan to unlimited in the Business Plan.
- Voice Adjust: Adjust tone, pitch, and pauses for better audio output.
- Multi-voice functionality: Allows different voices to be used in the same audio file.
- Voice cloning: Clone your voice for highly customizable podcasts or videos.
- Speech to Speech: Convert words spoken by a person into another person´s voice.
- Languages: 140+ with 700+ voices.
- Translation: Translate your voiceover into another language.
- Speech to Speech: Change the voice of an existing file with another one.
- Multilingual voice cloning: You can clone and use your voice in your podcasts or videos.
- Text-to-Speech API: This is used to connect your apps to Synthesys.
- AI Voices GPT: This feature generates and clones high-quality voiceovers in 17 languages.
Avatars
- Stock avatars: 80+ diverse avatars. This ensures you can find the perfect actor that fits your target audience.
- Instant avatar: Create a digital twin using your phone's cell camera.
- Studio avatar: This is a high-quality option for creating avatars.
Video Editor and Media
- Video length: 2 minutes in the Free Plan to unlimited in the Business Plan.
- Templates: 24+ templates.
- Video quality: 1080p
- Transitions: 6 transitions available.
- Video from PDF
- AI Video translator: 31+ languages available for instant video or audio translation.
- AI Talking photos: Turn a picture into a dynamic speaking portrait.
- Music: 4 tracks.
AI Tools
- Image to video: Create a short video from an image.
- AI images and videos: Create an AI image or video from a text prompt.
- Face swapping: You can upload a photo to swap faces within an existing video.
- Synthesys X: Replicate any image using a Chrome extension.
- Synthesys Video Translate: Translate any existing video in 29 languages.
- AI Phone Call: A full suite of tools to handle inbound and outbound phone calls.
Collaboration and publishing
The only mention of collaboration I could find is in Enterprise Plans, where the webpage states that you can have up to five simultaneous logins. However, there are no options for team management or live collaboration. Thus, if you have an agency or need to share your video before publishing, you will have to go for other tools.
Security and Privacy
Synthesys discloses a privacy policy but does not mention security, incidents, or server management. There are no mentions of Single Sign On or SOC2 compliance.
Integrations
Synthesys integrates only with Canva, and you cannot streamline this platform into your current workflow if you are using other software.
If you need to scale text-to-speech voices, a proprietary API is available.
Synthesys Pricing and Value for the Money

Synthesys provides various pricing plans to meet diverse user needs, from individuals to businesses. Below is a detailed overview of plans with helpful recommendations to assist you in selecting the most suitable option.
Pricing Plans Overview
- Free Plan ($0/month)
- Credits: 120 one-time credits (non-renewable).
- Features: Limited access to AI voices, AI humans, and AI images.
- Render Speed: Low priority.
- Video Quality: HD (720p).
- Avatars: 5 basic avatars.
- Images: 10 AI-generated images.
Use Case: Best for testing the platform or creating a few introductory videos.
- Personal Plan ($20/month or $243/year)
- Credits: 900 credits/month.
- Features:
- Access to all AI services (voices, humans, images).
- 1 instant avatar and one multilingual voice cloning.
- Basic priority rendering.
- Full HD (1080p) video quality.
- License: Personal use only.
Use Case: Ideal for individual creators or hobbyists who need moderate video production capabilities.
- Creator Plan ($41/month or $495/year)
- Credits: 2,400 credits/month.
- Features:
- Access to all AI services.
- 5 instant avatars and five multilingual voice cloning.
- Medium priority rendering.
- Full HD (1080p) video quality.
- Commercial license.
Use Case: Perfect for small teams, YouTubers, or freelancers who need higher credit limits and commercial usage rights.
- Business Unlimited Plan ($69/month or $831/year)
- Credits: Unlimited (with a limit of 1,500 credits/month for V3 avatars).
- Features:
- Access to all AI services.
- 10 instant avatars, 10 multilingual voice cloning, and one custom avatar.
- Turbo priority rendering.
- Full HD (1080p) and 4K video quality for V3 avatars.
- Commercial license.
Use Case: Best for businesses, agencies, or professionals who require unlimited video production and advanced features like custom avatars.
Which Plan Should You Choose?
- For Beginners or Casual Users: Start with the Free Plan to explore the platform’s capabilities. If you need more credits or features, upgrade to the Personal Plan.
- For Content Creators and Freelancers, the Creator Plan is the best choice. It offers a good balance of credits, features, and commercial licensing at an affordable price.
- For Businesses and Agencies: The Business Unlimited Plan is ideal for high-volume users who need unlimited credits, advanced features like custom avatars, and turbo rendering speeds.
How the Synthesys Credit System Works
Synthesys uses a unified credit system across all its AI services, including AI voices, AI humans, and AI images. This system allows you to allocate credits based on your specific needs, whether generating videos, creating voiceovers, or producing AI-generated images. Here's a detailed explanation of how it works:
What Are Credits?
Credits are the currency used within Synthesys to access its features. Each action you perform on the platform (e.g., generating a video, creating an image, or producing a voiceover) consumes a certain number of credits. The number of credits required depends on the type and duration of the content being created.
How Credits Are Consumed
- AI Voices:
- 1 credit = 1 second of audio generation.
- Example: A 60-second voiceover will consume 60 credits.
- AI Humans (Video Generation):
- 1 credit = 1 second of video generation for standard avatars (V1 and V2).
- For V3 avatars (more advanced and realistic), 1 second of video generation consumes four credits.
- Example: A 30-second video with a V1 avatar will consume 30 credits, while the same video with a V3 avatar will consume 120 credits.
- AI Images:
- 1 credit = 1 AI-generated image.
- Example: Generating 10 images will consume 10 credits.
- Video Translation:
- Translating videos into other languages also consumes credits, based on the length of the video.
Credit Allocation by Plan
- Free Plan: 120 one-time credits (non-renewable).
- Personal Plan: 900 credits per month.
- Creator Plan: 2,400 credits per month.
- Business Unlimited Plan: Unlimited monthly credits (with a cap of 1,500 credits/month for V3 avatars).
Key Features of the Credit System
- Unified Usage: Credits can be used interchangeably across all services (voices, videos, and images), giving users flexibility.
- Monthly Renewal: Credits are replenished every month for paid plans. Unused credits do not roll over to the next month.
- Fair Use Policy: Synthesys enforces a fair use policy to ensure that credits are used responsibly and within reasonable limits.
Synthesys Pricing Plans Comparison Table
PLAN | PROS | CONS |
Free Plan | Great for testing the platform. It includes 120 one-time credits. | Low rendering priority- No commercial license. |
Personal Plan | Affordable at $20/month- Access to all AI services (voices, humans, images).- Includes one instant avatar and one multilingual voice cloning. | - Limited to 900 credits/month, which may not be enough for frequent users.- Personal license only (no commercial use).- No custom avatars or advanced features. |
Creator Plan | - 2,400 credits/month, suitable for small teams or frequent creators.- Includes 5 instant avatars and 5 multilingual voice cloning.- Commercial license included, making it ideal for freelancers and professionals. | - Medium rendering priority, slower than Business Unlimited.- No custom avatars.- It may still feel limited for high-volume users. |
Business Unlimited Plan | - Unlimited credits for ultimate flexibility (except 1,500/month for V3 avatars).- Includes 10 instant avatars, 10 multilingual voice cloning, and 1 custom avatar.- Turbo rendering priority for faster video production. | - Higher price point at $69/month, which may not suit casual users.- V3 avatar credit cap may limit advanced users- No team collaboration or management features for agencies. |
Synthesys reviews and support
I found Synthesys score on G2 to be 4./5 from 11 reviews. Although there are few reviews, this is a good score from the user side.
Regarding support, there is a chat window at the bottom right that provides pre-made answers and the option to ask a specific question. In the upper window, a legend says, "We usually respond in a few hours," so don´t expect a quick response here.
Furthermore, the dashboard provides access to many video tutorials. The comprehensive knowledge base covers every aspect of the platforms, making it a helpful resource for getting the most out of it.

How to make a video with Synthesys
Once on the home dashboard, I go down to the AI Humans tab, and a new dashboard appears. From there, I can create a video from scratch or use any available templates. Let´s start with a pre-made template:

Let´s choose the red template. On the right, you can see that the system automatically adds four slides to the video.

To make things easier, I deleted the second scene and added some text to each scene. From the left dashboard, adding text, frames, shapes, and icons to the third scene is easy. In the upper left, a button lets you choose whether to show full-body avatars, circle view, or no avatars, as well as the aspect ratio.
The text input box has four controls: these allow the translation of the script, adding pauses, and changing pitch and speed. There are no phoneme controls to fine-tune word pronunciation.
There are only six transitions to play with. Let´s add the "Cross Disolve" transition to see how it works.

I saved the project before rendering the video. This process takes some time; the system updates the saved project in 40 seconds.
Now, the video is ready to render. I click the "Create Video" button at the top right. The system warns me about how many credits the render will take and offers the option to add captions and set the video name.

The video was ready 15 minutes later. This is too much time for a simple video of only 23 seconds. Although I am on the Free Plan, the time it took to render is ridiculously high.
Check it out:

Lip-syncing is good, and although the overall video quality is acceptable, the avatar is somehow frozen and does not look natural. Of course it can be improved, but the idea is to create a quick video to check how the tool works.
I can download the video, but there is no option to share it via URL or a social media link.
How to generate an AI image or video with Synthesys
Synthesys has an interesting AI image generator. Like similar tools, you must type detailed instructions in a text prompt, and the system returns an image in seconds. The system generates up to four images simultaneously to choose the best one that fits your needs.
Images aspect ratios can be square (1024x1024) horizontal (1536x640) or vertical (640x1536)
You can personalize the output by uploading a personal photo, and the AI will generate pictures with the same face. The "pose control" feature instructs the AI to create images by copying body poses and patterns.
Regarding AI video generation, videos can be square (768x768), Horizontal (1024x576), or vertical (576x1024). The tool offers the same options as images but adds face-swapping and lip-syncing.
Let´s try this tool for AI images. Once on the image generation dashboard, I type this prompt: "A young man driving a red vintage car in a mountain road with some trees. It is afternoon and the sky has some clouds." When I click the "Generate" button, the system comes up with these images

The overall result is outstanding. Synthesys takes AI image generation offering the option to upscale the images, edit them, create a video, or create variations.
How to generate an AI voiceover with Synthesys
This platform offers a wide range of accents and voices for voiceover generation.

I can preview how the voice sounds on the right side. I tried English and Spanish voices (the only languages I know), and all of them have excellent output with human-like quality.
So, let’s see how it works. I type in a short script, but it only accepts text of up to 300 characters, a significant disadvantage if you need to generate a voice from a longer paragraph.

I clicked the "Generate" button, but a pop-up appeared saying I didn't have enough credits. I still own 116 credits, so there may be some error here. After three attempts, I finally managed to generate my voiceover.
The generated voiceover is top quality, although the 300-character limit makes this tool too slow.
Synthesys Pros: What I like
- AI image generation: The quality of generated images is excellent, and the additional options add much value to this platform.
- Generous Free Plan: The Free Plan has many features you can use if you don´t need to create lots of monthly videos.
- Excellent voice quality: The quality of AI voices in Synthesys is excellent and it is difficult to tell they are not human.
Synthesys Cons: What needs improvement
- Team management: This feature must be added to make this app eligible for teams or agencies.
- Platform buggy at times: The platform freezes occasionally, and you have to go back and start again.
- Avatar quality: Although lip-syncing is good, avatars don´t look as natural as on other platforms.
- Integrations: This app is far behind its competitors because it integrates only with Canva. The lack of integrations needs improvement.
- Free royalty assets: There are only a few templates, stock images, music, and videos. You will definitely have to look for these items on other sites.
- No ChatGPT for scripts: There is no ChatGPT integration for writing scripts, a feature every competitor offers.
Three best Synthesys alternatives
The best way to determine whether this is a good fit for your needs is to sign up for a free Synthesys account and test it yourself.
Anyway, I am listing below the three best Synthesys options:
Synthesia
Synthesia is the leading tool in the AI video creation business. With 230+ top-quality avatars, 1-click translation, live collaboration, tons of templates and integrations, and a fully featured video editor, this platform lets you create professional-looking videos in minutes.
Synthesia pricing starts at $18/month for 120 minutes of video per month, but there is no free trial.
Read my Synthesia Review or go to the Synhtesia webpage.
HeyGen
HeyGen AI video maker is another solid option for video creation. A unique free plan lets you create up to three videos per month, each up to three minutes in length. But if you are keen to pay $24/month, you can create unlimited videos per month. (Yes, unlimited)
HeyGen features 700+ avatars, interactive avatars, URLs to video creation, workspaces, branding kits, and enterprise security and privacy.
Read my HeyGen review or go to the HeyGen webpage.
Elai.io
Elai is the best AI video creator for learning and course creators. Elai's interactive options are unique, and you can create videos featuring human avatars with quizzes, branching, links, clickable hotspots, and interactive timelines.
Add to this 300+ voices, voice cloning, 75+ languages, collaboration features, and real-time streaming avatars, and you have a solid AI video creator.
You can try Elai for free, and paid plans start at $23/month with 15 minutes of video per month.
Read my Elai review or go to the Elai webpage.
Synthesys alternatives comparison table
SYNTHESYS | SYNTESIA | HEYGEN | ELAI | |
STARTING PRICE PER MONTH | $20 | $18 | $24 | $23 |
FREE PLAN | YES | NO | YES | YES |
VIDEO TRANSLATION | Supports AI dubbing and translation | Supports AI dubbing and translation | Supports subtitles and translations | Supports subtitles and translations |
AVATARS | 50+ | Limited | 1400+ | 80+ |
AI VOICES | 700+ | 90+ | 100+ | 120+ |
LANGUAGES | 140+ | 120+ | 40+ | 65+ |
RESOLUTION | Up to 4K | HD | Up to 4K | HD |
TEAM MANAGEMENT | No | Yes | Yes | Yes |
CUSTOM AVATARS | Yes | Yes | Yes | Yes |
Synthesys Review: My Conclusion
After testing Synthesys, I ended up with mixed feelings. While it excels in certain areas, such as AI image generation and voice quality, the platform falls short in others. The avatar quality needs improvement, there are no collaboration options, and the video editor lacks features available in similar platforms' software.
For individual creators and small businesses looking to produce occasional AI videos without breaking the bank, Synthesys offers a compelling entry point with its generous Free Plan. The excellent voice quality and AI image-generation capabilities are definite highlights that add significant value.
While Synthesys has its strengths, it may not be the best fit for everyone. Teams and agencies might want to consider other options since it lacks collaboration features. For content creators who need to crank out videos frequently and in large volumes, the rendering times can be quite frustrating, and the limited templates might feel a bit constraining. Plus, the absence of third-party integrations beyond Canva could be a letdown for those who rely on a smooth and connected workflow.
Synthesys has built a solid foundation that could become more impressive with future updates despite these limitations. I recommend taking advantage of their free trial to test the platform yourself—it costs nothing to explore, and you might find it perfectly suits your specific needs, especially if you're just getting started with AI video creation. The technology is there; it just needs some polishing to deliver a truly exceptional user experience.

I’m the founder of Vidmetoo, a site dedicated to researching and reviewing AI video tools. I test platforms hands-on so creators, marketers, and educators can make informed decisions without wading through the hype.

