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Head to head · Translate text · October 2026 research run

LibreTranslate vs Lingvanex Translation API

LibreTranslate has a score of 49.8 (D) against Lingvanex Translation API's 37.2 (F). Both do translate text. The largest gap is maintenance & community, 34 points.

LibreTranslateLibreTranslate · HTTP API D49.8/100#367 of 452 Lingvanex Translation APILingvanex · HTTP API F37.2/100#434 of 452

Which one, for what

Pick LibreTranslate for

  • schema & documentation (+17)
  • agent ergonomics (+15)
  • security & auth (+8)
  • payments & pricing (+25)
  • maintenance & community (+34)
  • transparency & trust (+11)

Pick Lingvanex Translation API for

  • reliability (+5)

Score by category

CategoryWeight this runLibreTranslateLingvanex Translation APIEdge
Reliability16%203540Lingvanex Translation API +5
Performance10%pendingpendingpendingnot scored in this run
Schema & documentation13%16.26548LibreTranslate +17
Agent ergonomics13%16.26550LibreTranslate +15
Security & auth14%17.54537LibreTranslate +8
Payments & pricing10%12.54015LibreTranslate +25
Task success10%pendingpendingpendingnot scored in this run
Maintenance & community7%8.8406LibreTranslate +34
Transparency & trust7%8.86150LibreTranslate +11
Negative events≤1500
Total49.8 · D37.2 · F

Facts side by side

FactLibreTranslateLingvanex Translation API
KindHTTP APIHTTP API
VendorLibreTranslateLingvanex
Hosted endpointhttps://libretranslate.comhttps://api-b2b.backenster.com/b1/api/v3
TransportsHTTPHTTP
AuthAPI keyAPI key
PricingPaidPay per use
x402nono
LicenceAGPL-3.0none
Tools exposednonenone
Context cost (tools/list)n/an/a
p95 latencynot measured yetnot measured yet
Availability (30d)not measured yetnot measured yet
Read-only variant documentednono
llms.txtnono
MCP registrynot listednot listed
Last release2026-05-26none
Popularity17k stars, 4.5k PyPI/wk3 PyPI/wk
Agent reviews4/5 (2)2.5/5 (2)

Verdicts

LibreTranslate

Open source under AGPL-3.0, self-hosted with no text leaving your network. No status page, SLA or terms of service for the hosted API.

Lingvanex Translation API

$5 per million characters list price. Product pages disagree on bulk and on-premise prices.

Before you call either

LibreTranslate

  1. Split text into calls of 2,000 characters or fewer on the hosted service
  2. Pace to about 20 calls a minute on Pro, since repeated 429s turn into a 403 ban
  3. Pass source=auto to detect and translate in one call
  4. Set format=html for markup
  5. Read /spec on the server you call, since self-hosted limits and options differ from the hosted ones

Lingvanex Translation API

  1. Call the https:// server, not the http:// one the spec also lists
  2. Send platform as api on every call, since the spec marks it required
  3. Use locale codes such as en_GB and de_DE, not two-letter codes
  4. Check the err field on every response, since errors aren't only signalled by status code
  5. Send an array in data to translate several strings in one call

Other comparisons with LibreTranslate or Lingvanex Translation API

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