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Amazon Polly vs. OpenAI Text-to-Speech

The best way to compare Amazon Polly vs. OpenAI Text-to-Speech: audio samples, features, plans, pricing, and more.

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Live Demo

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

Non-Fiction
Fiction
News
Blog
Conversation
0/250
Voice
Format
Normal
Speed
Filesize
0 kb
Text to speech API - Amazon Polly

Amazon Polly

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

OpenAI Text-to-Speech

Convert text into lifelike spoken audio using one of the six built-in voices.

Voice Quality

Amazon Polly Samples

Mean Opinion Score
Fiction
3.00
Non-Fiction
2.51
Conversation
2.63

OpenAI Text-to-Speech 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)

OpenAI Text-to-Speech Features

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

Features - Conclusion

  • Amazon Polly offers a more feature-rich text-to-speech service compared to OpenAI Text-to-Speech, including capabilities such as voice cloning, per-word timestamps, pitch control, speed control, and support for phone formats.
  • OpenAI Text-to-Speech, on the other hand, has a more limited feature set, lacking in these advanced options.
  • This makes Amazon Polly a more versatile choice for users needing detailed customization and control over their text-to-speech outputs.

Pricing & Plans

Amazon Polly Pricing

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

OpenAI Text-to-Speech Pricing

Pay As You Go
$15per
1M characters
Optimized for speed
Pay As You Go (TTS HD)
$30per
1M characters
Optimized for quality

Pricing & Plans - Conclusion

  • Amazon Polly offers an attractive starting point for new users with its free tier for the first 12 months, making it ideal for those testing the waters or with minimal text-to-speech needs.
  • However, for long-term or high-volume users, OpenAI Text-to-Speech edges out as the more cost-effective option, lacking a free tier but maintaining a slightly lower ongoing cost.
  • Ultimately, the choice between the two services hinges on the user's specific needs and usage patterns, with Amazon Polly favoring initial use and OpenAI Text-to-Speech benefiting sustained, heavier use.

Compare Alternatives

Amazon Polly Alternatives

Amazon Polly vs. Unreal Speech
Amazon Polly vs. ElevenLabs
Amazon Polly vs. Play.ht
Amazon Polly vs. Google Cloud Text-to-Speech
Amazon Polly vs. Microsoft Azure AI Speech
Amazon Polly vs. Murf API
Amazon Polly vs. Neets.ai
Amazon Polly vs. IBM Watson
Amazon Polly vs. Resemble.AI
Amazon Polly vs. LOVO AI
Amazon Polly vs. Deepgram Aura

OpenAI Text-to-Speech Alternatives

OpenAI Text-to-Speech vs. Unreal Speech
OpenAI Text-to-Speech vs. ElevenLabs
OpenAI Text-to-Speech vs. Play.ht
OpenAI Text-to-Speech vs. Google Cloud Text-to-Speech
OpenAI Text-to-Speech vs. Microsoft Azure AI Speech
OpenAI Text-to-Speech vs. Murf API
OpenAI Text-to-Speech vs. Neets.ai
OpenAI Text-to-Speech vs. IBM Watson
OpenAI Text-to-Speech vs. Resemble.AI
OpenAI Text-to-Speech vs. LOVO AI
OpenAI Text-to-Speech vs. Deepgram Aura

Summary

  • In comparing Amazon Polly and OpenAI Text-to-Speech, Amazon Polly stands out with its richer feature set, including voice customization options and a free tier for new users, making it particularly appealing for those seeking detailed control and cost-effective entry points.
  • However, OpenAI Text-to-Speech offers a slightly more affordable long-term pricing model, despite its more limited features and lack of voice quality data.
  • Ultimately, the choice between the two depends on the user's priorities, whether they value advanced features and initial cost savings with Amazon Polly or prefer the slightly lower ongoing costs associated with OpenAI Text-to-Speech.

Looking for a better alternative to Amazon Polly & OpenAI Text-to-Speech?

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