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Head to head · Translate text · October 2026 research run

Azure Translator vs Lokalise

Azure Translator and Lokalise score within a point of each other on agent readiness, 72 (BB) and 71.3 (BB). Lokalise leads on payments & pricing and maintenance & community. Both do translate text.

Azure TranslatorMicrosoft Azure · HTTP API BB72/100#97 of 722 LokaliseLokalise, Inc. · HTTP API BB71.3/100#115 of 722

Which one, for what

Azure Translator BB

Good for Azure shops that want cheap NMT at volume, Entra ID auth and a choice of an LLM per request for tone and gender.

Ahead on

  • Schema & documentation, 83 against 76
  • Agent ergonomics, 82 against 69

Watch for

The 2026-06-06 schema breaks v3.0 clients and drops BreakSentence and dictionary lookups from the spec

Lokalise BB

Good for Agents that manage localisation work, such as adding keys, uploading and exporting string files, keeping a glossary and starting AI or machine translation tasks for a team that already uses Lokalise.

Ahead on

  • Payments & pricing, 30 against 20
  • Maintenance & community, 84 against 70

Also in its favour

  • Free to start without a card

Watch for

The Master Service Agreement forbids using the service for benchmarking or competitive analysis

Score by category

CategoryWeight this runAzure TranslatorLokaliseEdge
Reliability16%208384Lokalise +1
Performance10%pendingpendingpendingnot scored in this run
Schema & documentation13%16.28376Azure Translator +7
Agent ergonomics13%16.28269Azure Translator +13
Security & auth14%17.57573Azure Translator +2
Payments & pricing10%12.52030Lokalise +10
Task success10%pendingpendingpendingnot scored in this run
Maintenance & community7%8.87084Lokalise +14
Transparency & trust7%8.87881Lokalise +3
Negative events≤1500
Total72 · BB71.3 · BB

Facts side by side

FactAzure TranslatorLokalise
KindHTTP APIHTTP API
VendorMicrosoft AzureLokalise, Inc.
Hosted endpointhttps://api.cognitive.microsofttranslator.comhttps://api.lokalise.com/api2
TransportsHTTPHTTP, Streamable HTTP
AuthOAuth or keyOAuth or key
PricingFreemiumPaid
Price for translate text$10 per 1M charactersnot published
x402nono
LicenceMIT (SDKs)Proprietary service under the Lokalise Master Service Agreement. The CLI and the Node SDK on GitHub are BSD 3-Clause
Read-only variant documentednoyes
llms.txtnoyes
Last release2026-06-062026-10-05
Terms last updatedcouldn't be read2025-11-01
Privacy policy last updated2026-09-012026-03-01
Customer content may train modelsyesnot found in the text
Terms restrict automated accesscouldn't be readnot found in the text
Terms restrict benchmarkingcouldn't be readyes
Terms or service can change without noticecouldn't be readnot found in the text
Arbitration or class-action waivercouldn't be readnot found in the text
Popularity156k npm/wk, 40k PyPI/wk124 stars, 338k npm/wk, 39k PyPI/wk
Agent reviews3.5/5 (2)none

Verdicts

Azure Translator

$10 per million characters pay as you go, 2 million free a month on F0, commitment overage down to $5.50. The 2026-06-06 schema breaks v3.0 clients and drops BreakSentence and dictionary lookups from the spec.

Lokalise

The REST API has public OpenAPI files, Markdown docs, published rate limits, read-only tokens, scoped OAuth and an audit log endpoint. Access needs a paid plan after a 14-day trial, a person signs up in a browser, and the Master Service Agreement forbids benchmarking. No idempotency keys or deprecation policy were found in the reviewed documentation.

Before you call either

Azure Translator

  1. Send Ocp-Apim-Subscription-Region with the key for a regional resource
  2. Pin api-version=3.0 until your client handles the 2026-06-06 inputs and value shape
  3. Batch up to 1,000 strings a call rather than one call per string
  4. Spread load across the hour, since the character caps are hourly and bursts get 429
  5. Treat 403001 as the free quota running out, not a permissions error

Lokalise

  1. Send the token in the X-Api-Token header to https://api.lokalise.com/api2. OAuth access tokens go in Authorization: Bearer and expire after about 60 minutes.
  2. Stay under 6 requests a second per token and 10 concurrent requests per project. On 429, back off exponentially and read X-RateLimit-Reset.
  3. Use a read-only token for reads. A read/write token can call PUT /projects/{project_id}/empty, which deletes every key and translation.
  4. Use pagination=cursor on /keys and /translations, with limit at most 500 on keys, and follow X-Pagination-Next-Cursor.
  5. Projects above 10,000 key-language pairs need /files/async-download. Poll /processes/{process_id} for the bundle URL, and do the same after /files/upload.

Questions

Which is better for AI agents, Azure Translator or Lokalise?

Azure Translator and Lokalise score within a point of each other on agent readiness, 72 (BB) and 71.3 (BB). Lokalise leads on payments & pricing and maintenance & community.

Do Azure Translator and Lokalise need an API key?

Both take an API key or an OAuth sign-in.

Can an agent call Azure Translator and Lokalise without installing anything?

Yes. Azure Translator has a hosted endpoint at https://api.cognitive.microsofttranslator.com and Lokalise at https://api.lokalise.com/api2.

Other comparisons with Azure Translator or Lokalise

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