Amazon Polly vs OpenAI Text-to-Speech

Amazon Polly9.3Visit OpenAI Text-to-Speech9.0Visit

Higher score Amazon Polly #2 in Voice Ai Tools 9.3/10 Paid ✓ 2 of 4 features Visit Amazon Polly

vs

OpenAI Text-to-Speech #5 in Voice Ai Tools 9.0/10 Paid ✓ 3 of 4 features Visit OpenAI

• Amazon Polly fits best

  Production TTS via a mature cloud API

• OpenAI Text-to-Speech fits best

  Developers building speech features through an API

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Side by side

Feature	Amazon Polly 9.3/10 Visit ↗	OpenAI Text-to-Speech 9.0/10 Visit ↗
At a glance
Editor score	9.3	9.0
Ranking	#2 in Voice Ai Tools	#5 in Voice Ai Tools
Best for	Production TTS via a mature cloud API	Developers building speech features through an API
Pricing model	Paid	Paid
Starting price	$4/unit/mo	$15/unit usage-based
Free plan	Not checked yet	Not checked yet
Free trial	—	—
Deployment	Cloud	Cloud
Support	Phone, Live chat, Tickets, Community, Docs · 24/7	Docs
Built for	Solo, Small business, Mid-market, Enterprise	Small business, Mid-market, Enterprise
Features Amazon Polly 2/4 · OpenAI Text-to-Speech 3/4
Voice cloning	✓	✓
Real-time generation	Not checked yet	Not checked yet
API access	✓	✓
Commercial use	Not checked yet	✓ (best)
Specs
Languages supported	Not checked yet	Not checked yet
Included minutes	Not checked yet	Not checked yet
Output formats	Not checked yet	Not checked yet
Our review
Pros	Four voice engines spanning standard, neural, long-form, and generative output Real-time streaming, asynchronous synthesis, SSML, lexicons, and speech marks 42 languages, regional accents, multiple formats, and 24/7 support	Streaming generation and speech speed control Built-in voices and multiple audio output formats Multilingual speech with approved custom voices for eligible customers
Cons	Usage is billed per million characters across paid voice engines Engine prices and included request types differ by plan Cloud deployment centers work on APIs, console, CLI, or SDKs	Requires programmatic access through the Audio API Usage-based pricing starts at $15 per 1M characters Custom voices are limited to eligible customers
Our verdict	Amazon Polly is a cloud text-to-speech service for turning plain text or SSML into audio streams and files. It serves solo developers, small teams, mid-market organizations, and enterprises building IVR systems, chatbots, e-learning,… Read the review →	OpenAI Text-to-Speech turns text into spoken audio through the Audio API, making it a fit for developers adding voice to applications, narration, or accessibility features. It is aimed at teams comfortable working through an API rather… Read the review →

Strengths and trade-offs

• Amazon Polly — where it wins

  • Four voice engines spanning standard, neural, long-form, and generative output
  • Real-time streaming, asynchronous synthesis, SSML, lexicons, and speech marks
  • 42 languages, regional accents, multiple formats, and 24/7 support

  Where it doesn't

  • Usage is billed per million characters across paid voice engines
  • Engine prices and included request types differ by plan
  • Cloud deployment centers work on APIs, console, CLI, or SDKs

• OpenAI Text-to-Speech — where it wins

  • Streaming generation and speech speed control
  • Built-in voices and multiple audio output formats
  • Multilingual speech with approved custom voices for eligible customers

  Where it doesn't

  • Requires programmatic access through the Audio API
  • Usage-based pricing starts at $15 per 1M characters
  • Custom voices are limited to eligible customers

• Amazon Polly9.3/10 · Paid

  A production-focused cloud TTS API with four engines, streaming, SSML, and multilingual output.

  Visit Amazon PollyFull verdict →
• OpenAI Text-to-Speech9.0/10 · Paid

  A developer-focused Audio API for multilingual speech, streaming, and voice controls.

  Visit OpenAIFull verdict →