The 6 Best AI Speech Generators 2025

For example, you can have texts read to you while you’re in the car or on the train or add audio to your blog articles or social media posts and turn them into podcasts or videos.

To save even more time, you can combine an AI speech generator with an AI text generator or AI video generator.

Some tools even allow voice cloning, which means you can clone your own voice.

In this article, we present the five best AI speech generators, which we have objectively evaluated and compared for you based on criteria such as the number and quality of voices, audio quality, price and range of functions.

Four of the five AI speech generators offer free basic versions allowing you to test the tools or even implement smaller projects extensively.

Comparison of AI Speech Generators in 2025

Place	tool	German language quality	German voices	German premium voices	Voice Cloning	Voice Changer	free version	Price (net, per month)
1	Fliki	very good	28	37	from Premium, also German		5 min. (month)	from $21
2	ElevenLabs	very good	31				10,000 characters (month)	from $5
3	Murf.ai	very good	4	3	(upon request)		10 minutes (total)	from $19
4	PlayHT	good	34		(English only)		5,000 words	from $29
5	Speechify	good	19				10 minutes	from $24
6	LOVO	mediocre	19					from $24

6 Best AI Speech Generators in Detail

Below, you will find all AI speech generators in detail. With speaking examples, screenshots and a comprehensive evaluation of the operation, speech quality and range of functions:

Fliki

Fliki is the AI ​​speech generator that I currently use the most and that performed best in the test. And there are many reasons for that.

Firstly, Fliki offers the largest selection of German voices of all language tools. There are 66 German voices in total:

Secondly, Fliki offers the best quality German voices. The standard German voices are comparable in quality to Murf.ai and play.ht (and also partially overlap; the Amala of Fliki.ai is the same Amala as that of play.ht).

However, unlike the other AI voice generators, Fliki also offers 39 premium German voices, which are significantly better quality than the standard voices.

The only provider that also offers German premium voices is Murf.ai. However, here, you can only choose from 4 AI voices.

Thirdly, Fliki is the only tool, besides ElevenLabs, that allows clone a German voice quickly and easily. All you need is a premium package:

Other AI speech generators also offer voice cloning, but usually only on request (which is very expensive!) or in English.

Fliki also offers a free version that allows you to create 5 minutes of audio per month and extensively test the tool.

Unfortunately, the premium voices (called “Ultra realistic voices” by Fliki) are only available with the premium plan starting at $66 per month. However, this includes voice cloning and offers very good value for money with 10 hours of audio and video generation per month.

ElevenLabs

ElevenLabs is one of the best and most popular text-to-speech tools currently available and impressed us with its wide range of features and the quality of its AI voices, so we see it in second place.

With ElevenLabs, you can not only convert text to speech using ready-made AI voices but also clone your own voice, which no other solution offers besides Fliki.

We have already talked about the high quality of the voices. They can be used for various applications, such as voice-overs in YouTube videos or for creating artificial voices for virtual assistants.

They sound (mostly) natural and can often only be distinguished from human voices if you listen closely.

ElevenLabs’ interface is also intuitive and user-friendly. You can either use one of the pre-built AI voices or upload and clone your own voice:

Voice cloning is a particular highlight of ElevenLabs. You can upload a recording of your own voice and the software will create an artificial voice that sounds very similar to yours.

This process is simple. The quality of the result will, of course, depend on the quality of the original recording. The clearer and crisper your recording, the better the result.

ElevenLabs offers different pricing packages:

There is a  free version that allows you to use up to 10,000 characters per month and create up to three custom voices.

For just $5 per month, the  Starter package gives you  instant voice cloning and up to 30,000 characters per month. There are also more expensive packages with more features and a larger character limit, for example for larger companies.

Murf.ai

Murf.ai ranks third in our test as the best speech generator:

The German premium voices are of high quality and at least as good as those of Fliki, if not a bit better.

Where Murf.ai clearly loses out to Fliki is the choice of voices. While Fliki gives you 27 German standard voices and 37 premium voices, Murf.ai only offers a comparatively meager selection of 3 standard voices and 4 premium voices:

You can choose from 120+ voices in 20+ languages ​​for voice generation. As with all AI voice generators, the best and most voices are in English.

Murf.ai ‘s unique selling point is the “AI Voice Changer”, which allows you to transform a poor quality recording into a professionally recorded one. Background noise, stuttering or filler words such as “um” are removed.

Murf.ai also scores points for its user interface and wide range of setting options. It offers a few more customization options than Fliki, for example you can adjust the pitch and pause length for each speech block (the latter only works for the entire audio file in Fliki).

Murf.ai has a good free plan that allows you to create 10 minutes of audio per month and has access to all voices. That’s enough to test the tool extensively.

If you decide to use Murf.ai, I would recommend the Pro plan, which is only $7 per month more expensive than the Basic plan at $26. However, you get twice the generation time and access to the premium voices and the AI ​​Voice Changer.

PlayHT

PlayHT is a well-known and popular AI speech generator and achieved a good fourth place in our test.

It offers a huge selection of 900+ voices in 142 languages. 145 are available in English and with many different accents.

Of all AI speech generators, it offers the most modern and stylish user interface and has voice cloning included in all plans:

Unfortunately, one major drawback is:

Although PlayHT offers a large selection of 34 German AI voices, these are only standard voices. The new premium voices (called “Ultra Realistic Voices” by PlayHT) are currently only available in English.

In addition, the German voices can only be used in the old legacy interface, which is a bit outdated and has fewer functions.

Voice Cloning is also currently only available in English, which is a shame.

What speaks for PlayHT is the pricing. Even with the personal plan for $7.20 per month, you can convert 120,000 words into speech per year, you have access to all voices, and you can create five voice clones (Fliki only offers one voice clone in the premium plan for $66).

PlayHT is a good choice if German voice quality is not super important to you or if you only want to do voice-overs or voice cloning in English.

Speechify

Speechify is a comprehensive tool with various text-to-speech functions:

The main function of Speechify is to read books or documents in many different file formats. There are also apps for Android, iOS and Mac. Speechify also offers a large library of audiobooks.

Unfortunately, the “reading function” is not very useful in German. There are eleven German AI voices, seven of which are completely useless. The remaining four voices are okay, but nothing more.

However, this article is not about the reading feature but about the Speechify AI Voice Studio. In addition to creating AI voice-overs, it can do voice cloning, generate subtitles, and include an AI video generator.

The user interface is intuitive and modern. In addition to basic settings, the audio editor offers many advanced options, such as emphasis on individual words, pitch and pause settings:

What Speechify unfortunately cannot convince in are the German AI voices:

Speechify includes the same 19 standard German voices found on PlayHT, LOVO and Fliki. However, PlayHT has 15 additional voices and Fliki has 9 additional standard voices and 37 premium voices.

All in all, Speechify ranks fourth because the German voice quality and interface are a little better than LOVO, the last-place AI voice generator.

LOVO

LOVO can keep up with other AI voice tools in many ways:

It has a modern and user-friendly interface and offers a good selection of speakers, including 19 German ones. The voice quality of the English voices is very good.

Nevertheless, LOVO has to settle for last place in our test because the quality of the German voices is lacking. Firstly, like PlayHT, LOVO does not offer any premium German voices.

In addition, LOVO is the only AI voice generator tested that does not offer a free plan but only a 14-day trial and has a slightly worse price-performance ratio than the other tools.

The basic plan, which costs $19 per month, only gives you 2 hours of voice generation time. At Fliki, you only pay $6 monthly for the basic plan, which also includes 2 hours.

Premium vs. Standard Voices

Many providers differentiate between premium voices (also called “Pro” or “Ultra realistic”) and standard voices for AI voices.

I would always recommend a provider and plan that includes premium voices, such as Fliki Premium or Murf.ai Pro. These sound noticeably more natural, offer better emphasis, sound less monotonous and robotic, and have a higher recording quality.

This is because they were trained with more and higher quality audio material than the standard voices.

Of course, even premium voices cannot quite match human voiceover artists, especially when it comes to fiction or texts with a high proportion of dialogue. But AI voice generation is getting better and better and will replace more and more voiceover artists in the medium to long term.

FAQ

Here, I have compiled answers to frequently asked questions about AI speech generators:

Which AI speech generators offer an API?

AI speech generators that offer an API include:

• Fliki
• Murf.ai
• PlayHT
• LOVO
• Speechify

Why do AI-generated voices sometimes sound monotonous or robotic?

There are three reasons why AI-generated voices sound monotonous or robotic:

• The AI ​​model used is not good
• Too little training data was used
• The quality of the training data is not good

What are SSML tags?

SSML tags are special markers that you can use in your text to influence the speech output. With SSML tags you can, for example, adjust the pronunciation, emphasis, speed or volume of the voice.

SSML tags are a standardized way to refine and personalize text-to-speech. Various text-to-speech providers support them, but not all tags are available or work the same across all providers. You should always check the documentation provided by each provider before using SSML tags.