Four independent AI models. Zero bias. One clear winner.
In a blind evaluation, Grok, Gemini, DeepSeek, and ChatGPT-4o unanimously selected BookTranslate.ai as the best Chinese translation - without knowing which system produced which result.
Four anonymized translations. Four leading LLMs - DeepSeek, ChatGPT-4o, Gemini, and Grok - evaluated them blindly. Every model ranked BookTranslate.ai #1, without exception or prior knowledge.
In a blind benchmark against DeepL, Amazon, and Google Translate, four top AI evaluators unanimously ranked BookTranslate.ai #1.
Rank
Translation
Ranked as Best By
🥇 1
BookTranslate.ai
DeepSeek, ChatGPT-4o, Gemini, Grok
2
DeepL
-
3
Amazon Translate
-
4
Google Translate
-
Unbiased AI Judgments
What the Evaluators Said
Translation Mapping:
1: DeepL 2: Amazon Translate 3: Google Translate 4: BookTranslate.ai
We used these numbers consistently for all evaluations to keep the comparison blind and unbiased.
DeepSeek v3
Why It Matters
BookTranslate.ai isn’t a gimmick. It’s a new standard for machine translation - delivering accuracy, nuance, and voice that leading tools missed.
In our blind evaluation, BookTranslate.ai was rated higher than translations from DeepL, Amazon Translate, and Google Translate in terms of tone, structure, and faithfulness to the original.
The test is fair and objective. All translations are evaluated under identical conditions by high-level AI language models - systems uniquely qualified to assess tone, fluency, and fidelity without bias.
This process is fully transparent. Anyone can reproduce the experiment: generate translations for any language, anonymize them, and have top AI models score the results.
Don’t take our word for it. Upload your text and see how our recursive multi-pass system preserves clarity, tone, and structure - start to finish.
Our evaluation process is fully transparent and designed for independent verification. Here’s how you can run your own test - or audit ours:
Use Grok 3, GPT-4o, DeepSeek V3, and Gemini 2.5 Pro as independent evaluators. Claude does not allow longer prompts, which is a requirement for this evaluation. Tip: For Gemini, use aistudio.google.com to avoid message truncation.
Select a text to translate and generate translations using DeepL, Google Translate, Amazon Translate, and BookTranslate.ai.
Download our objective evaluation system prompt below, paste the four translations into the prompt, and pass it to the LLMs for evaluation.
We selected Chinese as a difficult test case for machine translation from Latin-based languages - but you’re welcome to try any language pair.
All evaluations were conducted independently using publicly accessible AI systems. Rankings reflect the outcome of our specific benchmark and may vary under different conditions or text selections.
BookTranslate.ai