Synthesia Review in 2025: Pricing, Features, & Alternatives
Synthesia is an AI voice generator that can turn any text into videos in multiple languages. However, the AI videos might lack realism and human emotions. Discover Speaktor, the better alternative.
Synthesia Overview
Synthesia is a well-known text-to-voice generator that can create AI videos in different languages and accents. Its easy-to-use interface allows you to generate professional videos with AI avatars that act just like real people. It also offers many editing tools that help you edit and create your own avatar, change the background, and improve the accent of the voiceover.
While the AI video generator tool does a decent job, its output may lack human touch and emotional connection. It supports many languages, but the quality and accuracy of the AI speech and lip-syncing may vary depending on the chosen language. That is where the need for a feature-rich Synthesia alternative comes into the picture.
Speaktor is a feature-rich AI text-to-speech and voice generator tool best known for creating natural-sounding and realistic voices in over 50 languages. It is much more affordable than Synthesia. For example, Speaktor's paid plans start at only $4.99 for 300 text-to-speech minutes per month, whereas Synthesia's starting plan costs $18 monthly for 120 minutes per year.
Hence, if you are looking for a Synthesia alternative that generates human-like voiceover outputs at a much more affordable price, you can consider going ahead with Speaktor. It also offers a 90-minute free trial so you can try how different voices sound before finding the best pick for your project!
Key Features of Synthesia
Synthesia is an AI voice generator that lets you create a video without hiring expensive voice actors or renting professional equipment. It offers many prominent features that make the overall video production process an absolute breeze, though they come in expensive paid plans, which can be a downside for people with tight budgets.
Voice Cloning
Synthesia lets you clone the voice to offer consistent AI audio across the content. It helps you maintain a cohesive brand identity with a familiar tone that speaks to your audience. However, if you want to replicate the voice with Synthesia, you will need 10 minutes of voice audio.
AI Narration
The AI narration feature of Synthesia ensures you never have to struggle with self-recording or spend hours searching for the right voice actor. All you need to do is paste or type the text, and Synthesia will start transforming written scripts into natural speech.
Voiceover Translation
Synthesia also offers an integrated video translation tool that lets you translate the output into 70+ languages. This makes Synthesia a great choice for businesses with a global audience. However, the quality of the output might vary depending on the translation language.
Pros of Synthesia
If you are planning to invest in the paid plan, it is essential to see where Synthesia excels compared to its competitors.
With an AI voice generator like Synthesia, you do not have to pay voice actors or invest in professional recording equipment.
It is simple to use, and you do not need video editing skills to use the AI voice generator.
You can choose from 400+ high-quality voices, though some of them might sound robotic.
Cons of Synthesia
While Synthesia offers many benefits and allows you to improve the speed of AI voice generation, it also has some downsides that cannot be ignored.
The AI avatars look artificially generated and might not be suitable for all project needs.
Synthesia offers a range of add-ons, and users must purchase them separately, which can increase the overall cost of using the platform.
Synthesia's AI human avatars are based on the likeness of real humans, which is why the company has a strict content moderation policy. Some users have said that Synthesia videos were denied in the healthcare field without any explanation.
Synthesia Pricing and Plans
Synthesia offers one free plan and three paid plans for its users, including Starter, Creator, and Enterprise. Let us explain what each of the plans includes and how much you would need to pay:
Free Plan - $0/month
If you are trying Synthesia for the first time, a free plan is available. It includes access to 9 AI avatars, 2 stock personal avatars, and 36 minutes of video generation per year. However, you may find the free plan pretty limited compared to Synthesia alternatives like Speaktor, which offers a 90-minute free trial.
Starter Plan - $18/month
The Starter plan is better suited for people with occasional AI audio generator needs. It offers access to many features such as avatar builder, AI video assistant, and personal avatars. On the starter plan, you will get 120 minutes of video generation per year, although it seems limited to professionals.
Creator Plan - $64/month
The Creator plan is designed for professionals and offers 360 minutes of video generation per year. It provides access to many features, such as custom fonts, CTA on the video page, branded video page, and avatar builder.
Enterprise Plan - Custom
If you are a small or large enterprise, Synthesia offers a custom Enterprise plan. It allows you to try 230+ AI avatars, unlimited personal avatars, and unlimited minutes of video generation. Users will also get priority support and one-click translations in the Enterprise plan.
Synthesia Reviews on G2
We also checked Synthesia reviews on G2 and Trustpilot to see what the users have to say about the AI video generator and its features. Here is a quick summary:
One user appreciated the editing features and animations of Synthesia:
We have used Synthesia to record slide decks using a personal avatar. Being able to edit my text and having access to easy-to-use animations and transitions all in one easy dashboard have been game-changers. I'm surprised at the small learning curve and very impressed by the quality of the personal avatar.
Brian H. (G2)
Another Synthesia user said that the AI text-to-speech tool has an easy-to-use interface backed by reliable customer support:
The editing features make it really intuitive for author-engaging videos. Synthesia tools make it easy to animate the layout of scenes with pinpoint accuracy in terms of script timing and specific behaviors. The customer support has been great. Whenever I had an issue, I got quick, helpful responses.
Jay W. (G2)
One of the Synthesia users pointed out that the output generated by the AI video generator sounds quite unnatural and creepy:
Like most AI software, Synthesia feels a bit artificial, and some co-workers find the avatars a bit "creepy" or uncanny at times. Rendering times are also a drawback—it can take 30 minutes to render a 15-minute video, and even small edits, like adding a comma, require a full re-render. Pronunciation is hit or miss, too.
Andriy T. (G2)
Another user pointed out flaws in many features of Synthesia, like robotic AI avatars and unnatural output:
The actual AI avatars often end up looking quite funky when generated, so I only rely on voiceovers for my videos. I think that could be improved. Also, the pronunciation and pausing that the avatars take can be unnatural; I've often found that it sounds like they are about to start another sentence but don't, and I assume my viewers also notice that.
Ally H. (G2)