AI Agent Translation / Localization Cost Calculator
Estimate monthly cost to translate or localize AI agent outputs across NMT and LLM providers, language complexity, human review tiers, glossaries, and content types.
Scenario presets
Translation workload
Estimates are directional. Last updated: 2026-07-08. See notes.
Cost per language / mo
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Cost per unit translated
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Cost per 1k words
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Total monthly cost
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Translation API / LLM cost / mo
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Human review cost / mo
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Glossary & project maintenance / mo
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Total words / month
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Review hours / month
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Period cost
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Provider comparison (same workload)
| Provider | Translation cost / mo | Review cost / mo | Total / mo |
|---|---|---|---|
| Run a calculation to see comparison. | |||
Verdict
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Frequently asked questions
When is an LLM cheaper than a traditional translation API?
LLM translation becomes cost-competitive for short, context-sensitive agent outputs and when you need style, tone, or terminology adaptation in one call. For high-volume generic text, NMT APIs like DeepL or Google Translate are usually cheaper per word.
How do you convert between characters and tokens?
The calculator uses a default of ~5.5 characters per word and ~4 characters per token for LLM routes. You can override the characters-per-word input if your content is shorter or longer than average.
What does human review cost include?
Post-editing, linguistic QA, terminology validation, and domain sign-off. Review minutes per 1,000 words vary by tier from light post-edit to certified/legal review.
Why factor in language complexity?
Character-based, morphologically rich, or low-resource languages generally need more LLM tokens and longer human review cycles. The complexity multiplier adjusts both translation quality assumptions and review overhead.
Does this include document formatting or DTP?
No. The estimate covers translation, review, glossary management, and project maintenance. Formatting, engineering, and desktop publishing should be estimated separately.
Translation and localization cost estimates are directional. Provider rates change by volume tier, language pair, and contract. Replace defaults with your actual quotes for a precise forecast.