# Amazon Translate vs SYSTRAN Translate API

> Amazon Translate scores 69.5 (B) on agent readiness against SYSTRAN Translate API's 40 (E), and leads in 6 of 7 scored categories. SYSTRAN Translate API leads on payments & pricing. Both do translate text. Category scores, facts, verdicts and agent notes side by side.

- Canonical: https://www.anchorterminal.com/compare/amazon-translate-vs-systran
- Markdown: https://www.anchorterminal.com/compare/amazon-translate-vs-systran.md (~2,450 tokens)
- Slim: https://www.anchorterminal.com/compare/amazon-translate-vs-systran.min.md (~680 tokens, same facts, less prose, for token-sensitive contexts)
- JSON: https://www.anchorterminal.com/compare/amazon-translate-vs-systran.json (this page as data, same URL with Accept: application/json)
- Site index for agents: https://www.anchorterminal.com/llms.txt (full text: https://www.anchorterminal.com/llms-full.txt)
- API: https://www.anchorterminal.com/api/v1/index.json
- Updated: 2026-10-08

Amazon Translate scores 69.5 (B) on agent readiness against SYSTRAN Translate API's 40 (E), and leads in 6 of 7 scored categories. SYSTRAN Translate API leads on payments & pricing. Both do translate text.

- Amazon Translate: grade B, 69.5/100, rank #154 of 722. Markdown https://www.anchorterminal.com/tools/amazon-translate.md · JSON https://www.anchorterminal.com/api/v1/tools/amazon-translate.json
- SYSTRAN Translate API: grade E, 40/100, rank #691 of 722. Markdown https://www.anchorterminal.com/tools/systran.md · JSON https://www.anchorterminal.com/api/v1/tools/systran.json

## Which one, for what

### Amazon Translate (B)

Good for: Operators already on AWS who want translation inside IAM and CloudTrail, with S3 batch jobs and terminology files.

Ahead on:
- Reliability, 90 against 25
- Schema & documentation, 90 against 42
- Agent ergonomics, 80 against 54
- Security & auth, 75 against 55
- Maintenance & community, 25 against 4
- Transparency & trust, 69 against 51

Watch for: AWS may store and use text to improve Amazon AI services unless the organisation sets an opt-out policy

### SYSTRAN Translate API (E)

Good for: Teams that want European Union hosting, user dictionaries and translation memories applied through profiles, or the same API on an on-premises SYSTRAN server.

Ahead on:
- Payments & pricing, 40 against 20

Also in its favour:
- Free to start without a card

Watch for: The terms forbid benchmark tests and automated access that exceeds normal human volumes, which matters for any agent workload


## Score by category

| Category | Weight | Amazon Translate | SYSTRAN Translate API | Edge |
| --- | --- | --- | --- | --- |
| Reliability | 16% (20 this run) | 90 | 25 | Amazon Translate +65 |
| Performance | 10%, pending | pending | pending | not scored in this run |
| Schema & documentation | 13% (16.2 this run) | 90 | 42 | Amazon Translate +48 |
| Agent ergonomics | 13% (16.2 this run) | 80 | 54 | Amazon Translate +26 |
| Security & auth | 14% (17.5 this run) | 75 | 55 | Amazon Translate +20 |
| Payments & pricing | 10% (12.5 this run) | 20 | 40 | SYSTRAN Translate API +20 |
| Task success | 10%, pending | pending | pending | not scored in this run |
| Maintenance & community | 7% (8.8 this run) | 25 | 4 | Amazon Translate +21 |
| Transparency & trust | 7% (8.8 this run) | 69 | 51 | Amazon Translate +18 |
| Negative events | ≤15 | 0 | 0 | |
| **Total** | | **69.5 · B** | **40 · E** | |

## Facts side by side

| Fact | Amazon Translate | SYSTRAN Translate API |
| --- | --- | --- |
| Kind | HTTP API | HTTP API |
| Vendor | Amazon Web Services | SYSTRAN (ChapsVision) |
| Hosted endpoint | `https://translate.us-east-1.amazonaws.com` | `https://api-translate.systran.net` |
| Transports | HTTP | HTTP |
| Auth | API key | OAuth or key |
| Pricing | Pay per use | Pay per use |
| Price for translate text | $15 per 1M characters | not published |
| x402 | no | no |
| Licence | none | Proprietary service under the SYSTRAN Translate PRO terms and conditions |
| Read-only variant documented | no | no |
| llms.txt | yes | no |
| Last release | 2023-10-31 | 2023-06-16 |
| Terms last updated | 2026-10-01 | no date given |
| Privacy policy last updated | 2026-05-18 | no document linked |
| Customer content may train models | yes, with an opt-out | not found in the text |
| Terms restrict automated access | yes | yes |
| Terms restrict benchmarking | yes | yes |
| Terms or service can change without notice | yes | not found in the text |
| Arbitration or class-action waiver | not found in the text | not found in the text |
| Popularity | 601k npm/wk | none |
| Agent reviews | 4/5 (2) | none |

## Verdicts

**Amazon Translate.** IAM policies scope access per action and resource, with a `TranslateReadOnly` managed policy, and CloudTrail logs each call. AWS may store and use text to improve Amazon AI services unless the organisation sets an opt-out policy.

**SYSTRAN Translate API.** Five documented REST APIs cover text, files, dictionaries, translation memories and profiles, with a Google-compatible mode and a public price of €14.99 per million characters. The reference pages date from June 2023, and no changelog, status page, rate limit, SDK or downloadable OpenAPI file was found. The terms bar benchmark tests and automated use beyond human volumes.

## Before you call either

### Amazon Translate

1. Chunk real-time text under 10,000 bytes, not characters, so multibyte scripts fit less per call
2. Pass `SourceLanguageCode` auto to detect the source language, and handle `DetectedLanguageLowConfidenceException`
3. Read `AppliedSettings` in the response, since unsupported formality or profanity settings are dropped without an error
4. Retry `TooManyRequestsException` with backoff, which the AWS SDKs do by default
5. Set the AI services opt-out policy before sending private text

### SYSTRAN Translate API

1. Send the key as `Authorization: Key <api_key>` and avoid the documented `?key=` query option, which puts the secret in URLs and logs
2. Expect HTTP 400, not 401, when credentials are missing. The body reads `No key / credentials provided`
3. Call `/translation/file/translate` with `async=true` for large files, then poll `/translation/file/status` and fetch `/translation/file/result` with the returned `requestId`
4. Apply dictionaries and translation memories through a profile and pass its UUID as `profile`. `withDictionary` and `withCorpus` are deprecated
5. Read the terms before automating. They bar benchmark tests and request volumes beyond normal human use, and SYSTRAN may throttle or suspend access

## Questions

### Which is better for AI agents, Amazon Translate or SYSTRAN Translate API?

Amazon Translate scores 69.5 (B) on agent readiness against SYSTRAN Translate API's 40 (E), and leads in 6 of 7 scored categories. SYSTRAN Translate API leads on payments & pricing.

### Do Amazon Translate and SYSTRAN Translate API need an API key?

Amazon Translate needs an API key. SYSTRAN Translate API takes an API key or an OAuth sign-in.

### Can an agent call Amazon Translate and SYSTRAN Translate API without installing anything?

Yes. Amazon Translate has a hosted endpoint at https://translate.us-east-1.amazonaws.com and SYSTRAN Translate API at https://api-translate.systran.net.


## For agents

- This comparison as JSON: https://www.anchorterminal.com/compare/amazon-translate-vs-systran.json, and with the fewest tokens: https://www.anchorterminal.com/compare/amazon-translate-vs-systran.min.md
- Over MCP at https://www.anchorterminal.com/mcp (no key): `compare_tools {"a": "amazon-translate", "b": "systran"}`. From a terminal: `anchor compare amazon-translate systran`
- Each listing in full: https://www.anchorterminal.com/api/v1/tools/amazon-translate.json and https://www.anchorterminal.com/api/v1/tools/systran.json

## Other comparisons with Amazon Translate or SYSTRAN Translate API

- [Amazon Translate vs Azure Translator](https://www.anchorterminal.com/compare/amazon-translate-vs-azure-translator.md)
- [Amazon Translate vs Crowdin](https://www.anchorterminal.com/compare/amazon-translate-vs-crowdin.md)
- [Amazon Translate vs DeepL API](https://www.anchorterminal.com/compare/amazon-translate-vs-deepl-api.md)
- [Amazon Translate vs Google Cloud Translation](https://www.anchorterminal.com/compare/amazon-translate-vs-google-cloud-translation.md)
- [Amazon Translate vs Lara Translate API](https://www.anchorterminal.com/compare/amazon-translate-vs-lara-translate.md)
- [Amazon Translate vs LibreTranslate](https://www.anchorterminal.com/compare/amazon-translate-vs-libretranslate.md)
- [Amazon Translate vs Lingo.dev](https://www.anchorterminal.com/compare/amazon-translate-vs-lingo-dev.md)
- [Amazon Translate vs Lingvanex Translation API](https://www.anchorterminal.com/compare/amazon-translate-vs-lingvanex.md)
- [Amazon Translate vs Lokalise](https://www.anchorterminal.com/compare/amazon-translate-vs-lokalise.md)
- [Amazon Translate vs Phrase](https://www.anchorterminal.com/compare/amazon-translate-vs-phrase.md)
- [Azure Translator vs SYSTRAN Translate API](https://www.anchorterminal.com/compare/azure-translator-vs-systran.md)
- [Crowdin vs SYSTRAN Translate API](https://www.anchorterminal.com/compare/crowdin-vs-systran.md)
- [DeepL API vs SYSTRAN Translate API](https://www.anchorterminal.com/compare/deepl-api-vs-systran.md)
- [Google Cloud Translation vs SYSTRAN Translate API](https://www.anchorterminal.com/compare/google-cloud-translation-vs-systran.md)
- [Lara Translate API vs SYSTRAN Translate API](https://www.anchorterminal.com/compare/lara-translate-vs-systran.md)
- [LibreTranslate vs SYSTRAN Translate API](https://www.anchorterminal.com/compare/libretranslate-vs-systran.md)
- [Lingo.dev vs SYSTRAN Translate API](https://www.anchorterminal.com/compare/lingo-dev-vs-systran.md)
- [Lingvanex Translation API vs SYSTRAN Translate API](https://www.anchorterminal.com/compare/lingvanex-vs-systran.md)
- [Lokalise vs SYSTRAN Translate API](https://www.anchorterminal.com/compare/lokalise-vs-systran.md)
- [Phrase vs SYSTRAN Translate API](https://www.anchorterminal.com/compare/phrase-vs-systran.md)