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Mistral Small 4 (via Mistral API)

Translation with Mistral's open-weight Small 4 model on Mistral's EU-hosted La Plateforme API, priced from token rates.

Of the token-priced options here, Mistral's API is the cheapest that processes data in the EU by default, at a derived $0.23 per 1M characters. That is a small fraction of DeepL or SYSTRAN, but cost follows tokens rather than characters, so non-Latin target languages and non-English sources can use noticeably more than the modelled figure. The Batch API is discounted further, and the vendor is Paris-based Mistral AI with a DPA available.

Headquarters
🇫🇷 France
Parent jurisdiction
🇫🇷 France
EU self-serve plan
Available; check eligible plans and regions
GDPR DPA
Yes
Billing
payg
Open source
No
Website
mistral.ai
Source last checked
2026-10-06
Pricing evidence
Modeled rates

Pricing

Published rates converted using workload assumptions. Read the notes. Token-to-character conversion assumes English source, short prompts and European-language output. Quality and retries are not priced. How to read these estimates.

1M additional characters
$0.2325
Allowances, plan limits & calculation details

Rates are shown at their recorded precision. A zero means no charge in this calculation; the vendor may charge for things we leave out. See the notes for usage assumptions and currency conversions.

Base fee / month
$0
Included characters / month (millions)
0
1M additional characters
$0.2325

Derived from token prices: $0.15 per 1M input tokens, $0.60 per 1M output tokens. 0.35 x $0.15 + 0.30 x $0.60 = $0.0525 + $0.18 = $0.23 per 1M characters. Assumptions (shared by all LLM-derived rows): English source at ~4 characters per token, so 1M characters = 250k source tokens; a ~200-token prompt per 2,000-character chunk adds 500 x 200 = 100k tokens, giving 350k input tokens per 1M characters; output for European target languages ~1.2x the source = 300k tokens. Cost per 1M characters = 0.35 x input price + 0.30 x output price (per 1M tokens). Non-Latin target languages (CJK, Arabic, Hindi) and non-English sources can use noticeably more tokens. Mistral's Batch API is discounted further. Weights are Apache 2.0, so the model can also be self-hosted. Mistral AI, Paris; EU hosting by default, DPA available.

Managed alternatives

At 50M characters / month. Adjust usage and requirements.

Mistral Small 4 (via Mistral API): $140/yr estimated.

The price difference leaves out migration costs, operating costs and any features you’d need to replace.

Self-hosted options

Operating cost is not estimated. These options are not counted as savings against managed services.

Other machine translation comparisons

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