# Amazon Polly vs. Deepgram Aura

The best way to compare Amazon Polly vs. Deepgram Aura: audio samples, features, plans, pricing, and more.

# Live Demo

Non-Fiction  
Fiction  
News  
Blog  
Conversation

0/250

**Voice**  
Sierra  
Autumn  
Melody  
Hannah  
Emily  
Ivy  
Kaitlyn  
Luna  
Willow  
Lauren  
Sierra  
Noah  
Jasper  
Caleb  
Ronan  
Ethan  
Daniel  
Zane  
Rowan

**Language**  
🇺🇸 US English  
🇬🇧 UK English  
🇨🇳 Mandarin Chinese  
🇮🇳 Hindi  
🇪🇸 Spanish  
🇧🇷 Portuguese  
🇯🇵 Japanese  
🇫🇷 French  
🇮🇹 Italian

**Format**  
Standard  
MP3  
Phone Call  
PCM µ-law

**Speed**  
1.0

**Pitch**

**Bitrate**  
192k  
128k  
96k  
64k  
48k  
32k  
16k

_Synthesize_

**Speed**  
0 s

**Filesize**  
0 kb

## [Amazon Polly](https://aws.amazon.com/polly/)

Text-to-speech service to transform text into natural-sounding speech using deep learning technologies.

## [Deepgram Aura](https://deepgram.com/product/text-to-speech)

Responsive, natural-sounding text-to-speech to power voicebots and conversational AI applications.

### Voice Quality

#### Amazon Polly Samples

Mean Opinion Score  
Fiction  
3.00  
Non-Fiction  
2.51  
Conversation  
2.63

#### Deepgram Aura Samples

Mean Opinion Score  
Fiction  
N/A  
Non-Fiction  
N/A  
Conversation  
N/A

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.

### Features

#### Amazon Polly Features

- Voice Cloning
- Multi-lingual
- Per-word Timestamps
- Pitch Control
- Speed Control
- Phone Formats (e.g. pcm_mulaw)

#### Deepgram Aura Features

- Voice Cloning
- Multi-lingual
- Per-word Timestamps
- Pitch Control
- Speed Control
- Phone Formats (e.g. pcm_mulaw)

### Pricing & Plans

#### Amazon Polly Pricing

- Free  
  $0/mo  
  1M characters (for first 12 months only)
- Pay As You Go  
  $16 per  
  1M characters

#### Deepgram Aura Pricing

- Pay As You Go  
  $15 per  
  1M characters
- Growth  
  $4k-10k/year  
  Pre-paid credits for entire year  
  Cost: $13.50 per 1M chars

# Looking for a better alternative to Amazon Polly & Deepgram Aura?

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