Amazon Polly

✓ Docs-verified · Sep 3, 2026◌ Not audio-tested△ What we could not verify

Published September 3, 2026 · This page indexes everything this site has verified about Amazon Polly and links to where each finding is set out in full. It is not a review — the review is. No listening test has been run, so nothing here says how Amazon Polly sounds.

Amazon Polly is AWS’s pay-as-you-go text-to-speech service, framed by this site as infrastructure rather than a product: four engines selected by a single API parameter, with no editor, no self-serve voice cloning and no subscription.

The finding that matters most: Amazon Polly pairs the joint-lowest documented list price in the site’s coverage ($4.00 per 1 million characters) with output ownership stated in a numbered contract clause — Service Terms 50.2, "The output that you generate using AI Services is Your Content" — but Service Terms 50.3 makes your submitted text usable for improving AWS models by default on free and paid tiers alike, with an opt-out only an AWS Organizations administrator can set, and AWS’s product page, FAQ and Service Terms give three conflicting accounts of that data handling.

Everything below is drawn from pages on this site, each of which carries its own sources and check dates (how we verify).

On this page

What it costs

Billing is per character with no subscription, no seats, no minimum and no volume discount published on the pricing page: Standard $4.00, Neural $16.00, Generative $30 and Long-Form $100.00 per 1 million characters, all read from AWS’s pricing page on September 1, 2026. A separate "AWS GovCloud (US) Pricing Details" section on the same page lists Standard at $4.80 and Neural TTS at $19.20 with no Long-Form or Generative price at all, so quoting the four commercial rates to a government buyer understates their cost by 20%. The free tier is 5 million Standard characters a month, plus 1 million Neural, 500,000 Long-Form and 100,000 Generative each qualified "for the first 12 months"; caching and replay carry no additional charge by AWS’s own statement; and on pricing comparison (rates read September 1, 2026) Polly’s $4.00 Standard rate is joint-lowest among the ten providers tracked, tied with Google Cloud Standard, while its own Long-Form engine at $100.00 is twenty-five times that.

Every rate above is set against every other provider’s, normalized to one unit, in our pricing comparison.

Where Amazon Polly’s own material disagrees with itself

These are contradictions inside the vendor’s published documentation, not disagreements between us and the vendor. We report both readings rather than choosing one, and each links to the page where we set it out in full. We have published 12 in total; the 10 with the most bearing on a decision are below, and the rest sit in the pages linked underneath.

AWS states the duration of the Standard free tier two different ways. The pricing page attaches "for the first 12 months" explicitly to the Neural, Long-Form and Generative allowances but not to the Standard one, while the Polly FAQ describes the whole arrangement as time-limited: "Upon sign-up, new Amazon Polly customers can synthesize millions of characters for free each month for the first 12 months." The site publishes both readings and reconciles neither, advising the twelve-month reading as the safe assumption for budgeting. Where we published this.
AWS’s newer credit-based free tier is not reconciled with Polly’s character allowances. The pricing page and FAQ both state that from July 15, 2025 new AWS customers receive up to $200 in Free Tier credits, while the AWS Free Tier Terms provide that Free Plan accounts expire six months from account opening or once credits are exhausted, whichever comes first. How that six-month scheme interacts with Polly’s twelve-month allowances is not reconciled on any page the site read. Where we published this.
AWS gives three different accounts of whether your text is used to improve its models. Service Terms 50.3 provides that AWS may use and store content processed by its AI Services and names Amazon Polly with no tier qualifier, in the same sentence where other products are qualified by tier. The Polly product page states the opposite in plain language — "Amazon Polly does not retain the content of your text submissions" — and the FAQ frames it as consent-based: "You always retain ownership of your content and we will only use your content with your consent." The site declines to reconcile them and records that the Service Terms are the operative document in a dispute. Where we published this.
The Polly FAQ describes the training opt-out mechanism two different ways in two different answers on the same page. Where we published this.
Four official AWS pages give four different sets of valid sample rates for MP3 and OGG output. The SynthesizeSpeech reference lists 8000, 16000, 22050, 24000, 44100 and 48000; other pages differ. The site records the disagreement rather than picking a set. Where we published this.
The Turkish voice Filiz is labelled Male on the standard-voices page and Female on AWS’s master voice list. Where we published this.
On the long-form voices page, the prose names "Daniel, Gregory, and Ruth" while the table immediately beneath it lists Danielle, Gregory, Ruth and Patrick. The site’s advice is to read the voice list endpoint rather than the prose when scripting voice selection. Where we published this.
AWS’s stated standard-voice inventory does not match its own tables. The standard-voices page claims "40 female and 20 male standard voices in 29 language and language variants", but the same page enumerates fewer than sixty named standard voices, and the site could not reconcile the count. Where we published this.
AWS writes the Generative engine rate two ways in its own pricing material — "$30" in the prose and "$30.00" in its own examples table. The site reproduces both rather than choosing one. Where we published this.
AWS’s contract and its marketing point in opposite directions on safety-adjacent deployments. Service Terms 50.6 states the AI Services "are not intended for use in, or in association with, the operation of any hazardous environments or critical systems that may lead to serious bodily injury or death", while the Polly marketing FAQ promotes the service for public-announcement and notification use cases. The site notes the contract is the document that governs. Where we published this.

Dated and time-sensitive

Facts with a clock on them — model sunsets, policy revisions, market status. These are the entries most likely to be out of date first, which is why they carry their dates.

2026-09-01. First publication of the Amazon Polly review. Every price, licensing term, quota and feature statement on it was read from AWS’s own pricing page, developer guide, Customer Agreement and Service Terms on this date; no AWS account was created, no API call made and no audio generated. Source on this site.
2026-08-20. The AWS Service Terms — the document carrying clause 50.2 on output ownership and clause 50.3 on default data use — are cited as last updated August 20, 2026, read September 1, 2026. Source on this site.
2026-08-14. The AWS Customer Agreement, whose Section 12 definition of "Your Content" covers "any computational results that you or any End User derive" through the Services, is cited as last updated August 14, 2026. Source on this site.
2026-07-29. The site’s flagship ranking, checked August 11, 2026, cites the AWS Service Terms as dated July 29, 2026. The September 1, 2026 review cites the same document as last updated August 20, 2026, so the two pages carry different version dates for it. Source on this site.
2025-07-15. AWS’s pricing page and FAQ both state that "Starting July 15, 2025, new AWS customers will receive up to $200 in AWS Free Tier credits, which can be applied towards eligible AWS services, including Amazon Polly." The AWS Free Tier Terms add that Free Plan accounts expire six months from account opening or once Free Tier Credits are exhausted, whichever comes first, and that they "are provided for evaluation purposes and should not be used for processing sensitive data." Source on this site.
2026-09-01. No deprecation plan for the Standard (concatenative) engine was found on any AWS page read, including the full document-history table — no sunset date, legacy label or end-of-life notice. The site records this as absent from the pages read rather than as confirmed non-existent. Source on this site.
2026-09-01. AWS documents that its voices are not fixed over time: updates to the training data and the model "could result in slight variations to the way the voices sound", published on both the generative and long-form voices pages. The site flags this as a planning constraint for serialized audiobooks and multi-year IVR estates, and notes Amazon is the one vendor publishing the version-drift warning itself. Source on this site.
2026-09-01. Long-Form, the $100.00 per million engine, is documented in exactly one AWS region — "US East (N. Virginia): us-east-1 + Other regions not available" — which the site treats as disqualifying for buyers with EU or APAC data-residency requirements regardless of price. Source on this site.

Every page on this site about Amazon Polly

Full review. Amazon Polly Review 2026: Pricing, Engines and Ownership, Docs-Verified — the complete documentation-based assessment, with sources and dates against every claim.
Alternatives. Amazon Polly alternatives — organized by the reason you would leave, not as a ranked list.
Head to head. Amazon Polly vs Azure Speech, Amazon Polly vs Google Cloud.
In our buying guides. Best AI Voice Generators in 2026: 10 Providers Compared, Best AI Dubbing Software 2026: Only Four Vendors Actually Sell It, Best Free AI Voice Generators 2026: What “Free” Actually Buys You, Most Realistic AI Voices: What Every Vendor Charges for the Claim, Best Multilingual AI Voice Generators: Every Count, Recounted, Real-Time AI Voice: Why the Latency Numbers Cannot Be Compared, Best AI Voice Cloning Software 2026: Price, Access and Consent Compared.
In our comparisons of published data. AI Voice Generator Pricing Comparison: Every Rate Normalized, Best Text-to-Speech APIs: Limits, Transports and Auth Compared.
In our explainers. Can You Use AI Voices Commercially? What Ten Vendors Actually Say, How AI Voice Cloning Works: What Ten Vendors Require of You, How AI Voice Generators Work, According to the Vendors Themselves.
By what you are making. AI Voice for Audiobooks: Will Chapter 20 Match Chapter 1?, AI Voice for Business: What Survives a Procurement Review, AI Voice for eLearning: Courses Change, and the Audio Must Follow, AI Voice for Podcasts: Only Three Providers Do Two Speakers, AI Voice for YouTube: What You Must Disclose Before You Publish.

What we could not verify

Honesty about gaps beats a page that looks complete. Standing limits on everything above, as of September 3, 2026:

How Amazon Polly sounds. Our listening benchmark is designed but not running. Nothing on this page or on any page it links to ranks Amazon Polly on audio quality, naturalness or speed.
Anything Amazon Polly does not publish. Every page indexed here is built from the vendor’s own documentation. Where that documentation is silent, we record the silence rather than estimating around it.
Whether a documented feature works as documented. We read documentation; we did not create an account or make an API call.
Currency. Each linked page carries its own check date. This index inherits them and does not re-verify on load.

Change log

September 3, 2026 — First publication. Assembled from pages already published on this site; no new vendor claim was introduced by this page.

Published September 3, 2026 · This page shows no audio and reports no listening results, because our benchmark has not run. Corrections are recorded with their date on the corrections page. Independence note: this page contains no affiliate links, and no vendor paid for placement or influenced the order — see how we make money and our editorial policy.