Comparison

Amazon Polly vs Bark

On the evidence we track, Amazon Polly leads this comparison with a composite score of 74/100. Scores are only directly comparable because these tools share a category; the full breakdown and every source is below.

Machine formatsMarkdownJSONGraphQLMarkdown is open. JSON and GraphQL need a free key.
★Amazon Polly74
Bark41
Score
vioscaleAI score
Amazon Polly74 / 100medium · 73%
Bark41 / 100low · 25%
Pricing
Free tier
Amazon Polly✓
Bark✓
Model
Amazon Pollyfreemium
Price level
Amazon Pollylow
Barkfree
Starting price
Amazon Polly$4
Bark–
Transparent
Amazon Polly✓
Bark–
Integrations
Count
Amazon Polly3
Bark–
Security
Disclosure policy
Amazon Polly✓
Bark–
Fedramp
Amazon Polly✓
Bark–
Gdpr
Amazon Polly✓
Bark–
Hipaa
Amazon Polly✓
Bark–
Iso27001
Amazon Polly✓
Bark–
Pci
Amazon Polly✓
Bark–
Scorecard
Amazon Polly–
Bark2.6
Soc2
Amazon Polly✓
Bark–
Reliability
Status page
Amazon Polly✓
Bark–
Adoption
Dependent repos
Amazon Polly–
Bark8
Github stars
Amazon Polly–
Bark39,268
Activity
Commits last 30d
Amazon Polly–
Bark0
License
Spdx
Amazon Polly–
BarkMIT
Language
Primary
Amazon Polly–
Market
Availability
Bark–
Content
Faq
Amazon Polly7 items

Capabilities

Feature-by-feature on the axes that matter for text to speech. “-” means undocumented, not absent.

Capabilities
Voice cloning
Amazon Polly-
Bark✗
Zero shot cloning
Amazon Polly-
Bark-
Streaming synthesis
Amazon Polly✓
Bark-
Ssml support
Amazon Polly✓
Bark-
Emotion style control
Amazon Polly-
Bark✓
On device offline
Amazon Polly✗
Bark-
Open source
Amazon Polly✗
Bark✓
Watermarking provenance
Amazon Polly-
Bark-
Cloning consent verification
Amazon Polly-
Bark-

What each one is

The product in its own terms, so the numbers below have context.

Amazon Polly

Leader

A cloud-based text-to-speech service that transforms written text into spoken audio using neural AI models. Supports multiple languages and voices with customization through markup language tags and pronunciation rules.

Independently observed

Bark

A generative text-to-audio model that produces multilingual speech, music, sound effects, and nonverbal vocalizations from text prompts. The model can attempt to match the emotional tone and prosody of selected voice presets.

Independently observed

Pricing

List pricing as published by each vendor, with the date we read it. Always verify at the source before you buy.

Amazon Polly

Leader
Usage-basedFree tier

From $4.00 per 1M characters (Standard Voices). Four voice type tiers with different pricing. Free tier includes millions of monthly characters depending on voice type.

  • Standard VoicesFree
    • Standard text-to-speech voices
    • SSML support
    • Custom pronunciation lexicons
  • Neural VoicesFree
    • High-quality neural voices
    • Newscaster speaking style
    • SSML support
    • Speech Marks metadata
  • Long-Form VoicesFree
    • Long-form optimized voices
    • Extended synthesis support
    • SSML support
  • Generative VoicesFree
    • Generative voice synthesis
    • Advanced voice quality
    • Bidirectional streaming API
as of verify ↗

Bark

Open source
as of verify ↗

Platform & deployment

Where each product runs and how it can be hosted. A dash means undocumented, not unsupported.

Platforms
Web
Amazon Polly✓
Bark✗
CLI
Amazon Polly✓
Bark✓
Deployment
Cloud / SaaS
Amazon Polly✓
Bark✗
Self-hosted
Amazon Polly✗
Bark✓

Integrations

What each product connects to. Counts come from the vendor's own integration directory where one exists.

Amazon Polly

Leader
5 total
  • Amazon Connect
  • Amazon Chime SDK
  • AWS Chime SDK
  • Alexa Skills
  • Amazon Chime
Independently observed

Bark

Not documented yet.

Still deciding?

Amazon Polly or Bark: which one depends on you

A composite score cannot know your constraints. Describe them and both get re-weighted against what you actually need, with the evidence behind every position.

Free to run, no account needed to start. How the evaluation works

Comparison generated from independently-sourced facts. Every value links to its source and retrieval date. See the method.