Contact Us
Sign In

Microsoft Azure AI Speech vs. Resemble.AI

The best way to compare Microsoft Azure AI Speech vs. Resemble.AI: audio samples, features, plans, pricing, and more.

Get Started for Free

Live Demo

Try our text-to-speech API. Click a button to generate random text:

0 kb
Text to speech API - Microsoft Azure AI Speech

Microsoft Azure AI Speech

Enables your applications, tools, or devices to convert text into human-like synthesized speech.
Text to speech API - Resemble.AI


AI voice generator with voice cloning for text to speech.

Voice Quality

Mean Opinion Score
Mean Opinion Score
Mean Opinion Score (MOS) is a numerical measure that represents the perceived quality of audio samples, commonly used in evaluating text-to-speech systems. The score ranges from 1 to 5, with 1 indicating poor quality and 5 signifying excellent quality. These scores are derived from comprehensive, professionally-conducted evaluations, and are anonymized to ensure unbiased results.


Voice Cloning
Per-word Timestamps
Pitch Control
Speed Control
Phone Formats (e.g. pcm_mulaw)
Voice Cloning
Per-word Timestamps
Pitch Control
Speed Control
Phone Formats (e.g. pcm_mulaw)
  • Both Microsoft Azure AI Speech and Resemble.AI offer voice cloning and multi-lingual support, highlighting their versatility in creating human-like speech from text across various languages.
  • Microsoft Azure AI Speech provides a more comprehensive set of features, including pitch and speed control, and support for phone formats, which could offer more flexibility and customization for developers and content creators.
  • In contrast, Resemble.AI lacks these additional controls and format support, potentially limiting its use in applications requiring detailed audio customization.

Pricing & Plans

5 hours of audio (~225K chars)
Pay As You Go
1M characters
Pay as you go
~$480 per 1M characters
80,000 seconds (~1M chars)
Extra: $0.002 per second
  • In a comparison of text-to-speech services based on pricing, Microsoft Azure AI Speech emerges as the more cost-effective option for both low and moderate to high usage levels.
  • Its free tier is particularly appealing for low usage, while its Pay As You Go plan offers significant savings for higher usage compared to Resemble.AI's plans.
  • Overall, Microsoft Azure AI Speech provides better value across different usage scenarios.

Customer Reviews

4.2 out of 5
Average of 88 ratings from leading review sites.
Customers appreciate Azure Text to Speech API for its ease of use, high-quality audio output, and seamless integration with other services. They find it particularly beneficial for accessibility and enhancing user experience across various applications. However, concerns about the cost and limited customization options are frequently mentioned. The API's multilingual support and continuous updates are praised, but some users desire improvements in voice naturalness and additional language options.
Ease of use
Audio quality
Multilingual support
Naturalness of voice
3.6 out of 5
Average of 12 ratings from leading review sites.
Customers appreciate Resemble.AI for its time-saving capabilities, voice cloning accuracy, and the ability to add emotions and tones to AI-generated speech. It is particularly valued for content creation and localization features. However, criticisms include its pay-as-you-go pricing model, limited language options without premium plans, and occasional technical glitches like voice pitch issues and electronic noises. Some users also find the user interface could be improved and the AI voices need to sound more natural.
Voice cloning accuracy
Content creation
User interface
Naturalness of AI voices
Pricing model
Language options
Technical performance


  • When comparing Microsoft Azure AI Speech and Resemble.AI for text-to-speech services, Microsoft Azure AI Speech stands out for its superior voice quality, more comprehensive feature set, and cost-effectiveness across various usage levels.
  • While both platforms offer voice cloning and multi-lingual support, Azure's additional controls for pitch, speed, and support for different phone formats provide a more versatile and customizable experience.
  • Overall, Microsoft Azure AI Speech offers better value and flexibility, making it a more attractive option for developers and content creators looking for high-quality, affordable text-to-speech solutions.

Looking for a better alternative to Microsoft Azure AI Speech & Resemble.AI?

Try Unreal Speech! You get 250,000 free characters every month.

Get Started for Free
Sign In