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Translation · head to head

Amazon Translate vs Unbabel

Amazon Translate logo

Amazon Translate

Translation

AWS machine translation API priced at $15 per million characters, with a 2 million character monthly free tier for the first 12 months

From
Free
Rated
-
Full reviewWebsite
Unbabel logo

Unbabel

Translation

Human-in-the-loop translation combining machine translation with human post-editing, priced per word rather than per character

From
On request
Rated
-
Full reviewWebsite

The short version

  • Only Amazon Translate has a free tier, so it costs nothing to try first.
  • Each has a real cost: Amazon Translate the generous 2 million character monthly free tier applies only for a customer’s first 12 months on AWS, so translation costs step up materially in year two with no change in usage.; Unbabel the attractive low per-word rate requires a minimum annual commitment reported around $120,000, which prices out most small and mid-sized businesses.
  • They diverge on capability: Amazon Translate covers Text translation API, Unbabel covers Machine translation with human post-editing.
  • Prices and features above were last checked on 1 September 2026.

Where they differ

Only the attributes on which Amazon Translate and Unbabel actually diverge.

Attributes where Amazon Translate and Unbabel differ
AttributeAmazon TranslateUnbabel
Starting priceFreeOn request
Pricing modelPer million charactersquote
Free tierYesNo

Identical on both: platforms (Web), user rating (Not yet rated), category (Translation).

What each one covers

Drawn from each product's published feature list. An absence here means we hold no record of it - not that the product lacks it.

Only in Amazon Translate

  • Text translation API
  • Document translation
  • Active Custom Translation
  • Real-time document translation
  • Formality control
  • AWS-native integration

Only in Unbabel

  • Machine translation with human post-editing
  • Multiple quality tiers
  • Customer support integration
  • Translation quality scoring
  • Human translator network
  • Enterprise reporting

What people use each for

The jobs each tool is most often brought in to do.

Amazon Translate

  • An AWS-native development team wanting translation billed through the same console as the rest of their infrastructurenot Unbabel
  • A new AWS customer running a translation-heavy pilot project inside the generous first-year 2 million character monthly free tiernot Unbabel
  • A team building a translation pipeline directly integrated with S3 and Lambda for document processingnot Unbabel
  • A business wanting formality-adjusted output for specific language pairs in customer-facing contentnot Unbabel

Unbabel

  • A multilingual customer support operation needing translated tickets accurate enough to send directly to customersnot Amazon Translate
  • An enterprise with predictable, high-volume support translation needs able to justify a six-figure annual commitmentnot Amazon Translate
  • A company wanting different quality tiers (raw MT versus human post-edited) depending on the sensitivity of the contentnot Amazon Translate
  • A business integrating translation directly into an existing helpdesk platform rather than building a custom pipelinenot Amazon Translate

Where each one falls short

Documented limitations, not opinions. Every one is a constraint you would hit in normal use.

Amazon Translate

  • The generous 2 million character monthly free tier applies only for a customer’s first 12 months on AWS, so translation costs step up materially in year two with no change in usage.
  • There is no consumer-facing app or website, so it is unusable for casual personal translation the way Google Translate or Microsoft Translator are.
  • Document translation of Office files costs double the standard per-character rate, which is easy to underestimate when budgeting a document-heavy project.
  • Active Custom Translation, the tool for improving output with domain-specific data, costs four times the standard rate at $60 per million characters.
  • As with all major MT APIs, output for low-resource languages and specialised terminology often still needs human review, so it does not substitute for a human translation service on customer-facing or legally sensitive content.

Unbabel

  • The attractive low per-word rate requires a minimum annual commitment reported around $120,000, which prices out most small and mid-sized businesses.
  • It should not be compared directly to per-character machine translation APIs, since the pricing unit, inclusion of human review and use case are all different, and doing so understates the real cost.
  • Turnaround time is inherently slower than pure machine translation, since human post-editors are part of the pipeline, which matters for real-time chat use cases.
  • Public pricing detail is limited outside the enterprise tier, so smaller buyers get little transparency into what they would actually pay before a sales conversation.
  • Quality and turnaround depend partly on the availability of the human post-editor network for a given language pair, which can vary for less common languages.

Pricing, plan by plan

Amazon Translate

Free
  • Standard text translation$15/month
    • $15 per million characters
    • 2 million characters per month free for the first 12 months on AWS
  • Document translation (Office files)$30/month
    • $30 per million characters, double the standard rate
  • Real-time document translation$15/month
    • Text and HTML documents, no free tier
  • Active Custom Translation$60/month
    • $60 per million characters
    • 500,000 characters per month free for the first 2 months

Unbabel

On request
  • Unbabel Enterprise$undefined/year
    • Per-word pricing reported from around $0.00015/word at top volume
    • Minimum annual commitment reported around $120,000
    • Rate depends on volume, language pairs, turnaround and quality tier

Which should you pick?

Choose Amazon Translate if

  • You need text translation api.
  • You want to start without paying.
  • You also want document translation.
Amazon Translate review

Choose Unbabel if

  • You need machine translation with human post-editing.
  • You also want multiple quality tiers.
Unbabel review

Questions people ask

Is Amazon Translate or Unbabel better?
Neither clearly leads. Amazon Translate starts at Free and Unbabel at On request, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Amazon Translate or Unbabel?
Amazon Translate has a free tier; the other does not. Paid plans start at Free for Amazon Translate and On request for Unbabel.
Does Amazon Translate or Unbabel run on more platforms?
Both run on Web, so platform support will not decide this one for you.
Can I use Amazon Translate for free?
Yes. Amazon Translate has a free tier, so you can try it without paying. Unbabel starts at On request.
What is Amazon Translate best used for?
Amazon Translate is most often used for an aws-native development team wanting translation billed through the same console as the rest of their infrastructure, a new aws customer running a translation-heavy pilot project inside the generous first-year 2 million character monthly free tier, a team building a translation pipeline directly integrated with s3 and lambda for document processing, a business wanting formality-adjusted output for specific language pairs in customer-facing content. Of those, an aws-native development team wanting translation billed through the same console as the rest of their infrastructure and a new aws customer running a translation-heavy pilot project inside the generous first-year 2 million character monthly free tier are not what Unbabel is typically brought in for.
What can Amazon Translate do that Unbabel cannot?
Amazon Translate covers Text translation API, Document translation, Active Custom Translation, Real-time document translation. Unbabel covers Machine translation with human post-editing, Multiple quality tiers, Customer support integration, Translation quality scoring.

Answered from the vendors’ own pages

Amazon Translate: How generous is the free tier really?

2 million characters per month, the largest of the three major cloud APIs, but only for the first 12 months after which standard per-character pricing applies to everything.

Unbabel: Is Unbabel comparable to Google Translate’s API on price?

No, they are different products: Unbabel is a managed service billed per word with human post-editing included, while Google’s API is raw machine translation billed per character.

Amazon Translate: Is there a consumer app like Google Translate?

No, Amazon Translate is a developer API only, accessed through the AWS console and SDKs, with no separate public-facing app.

Unbabel: What is the minimum commitment?

Enterprise pricing has been reported as requiring a minimum annual commitment around $120,000, which is a meaningful barrier for smaller buyers.

Amazon Translate: How much does document translation cost compared to text?

Double the standard rate, at $30 per million characters for Office file formats.

Unbabel: Does Unbabel offer fully human translation?

Yes, alongside raw machine translation and MT-plus-post-edit tiers, priced differently by the level of human involvement.

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