The most accurate translator for Chinese

What the studies say about Chinese

The strongest answer here is narrower than "this translator is the most accurate for Chinese." The studies below tested Chinese medical instructions, not store pages, app menus or every kind of writing you might need translated.

Kong et al., in BMJ Quality & Safety 2025, found that 95% of Chinese sentences translated by ChatGPT-4 were accurate, compared with 90% for Google Translate. When they looked at whole instruction sets, 24% of ChatGPT-4 sets had at least one error, compared with 56% for Google Translate.

That distinction matters. A sentence-level score and the share of complete sets containing an error answer different questions, and you'll want to keep both in view when you're comparing those results.

Earlier results give you another reference point. Khoong et al., in JAMA Internal Medicine 2019, found that Google Translate got 81% of Chinese discharge-instruction sentences right; 8% could have caused harm. Taira et al. 2021 reported 81.7% accuracy for Chinese.

These aren't interchangeable scores. Keep the study and its date attached to each result rather than treating them as a single ranking.

ChatGPT vs Google Translate for Chinese

If you're choosing based on the Kong et al. study, ChatGPT-4 came out ahead of Google Translate for Chinese medical instructions. It had both the higher sentence accuracy and the lower share of instruction sets containing an error.

But does that settle your choice for a store or an app? Not by itself. The research doesn't compare product descriptions, checkout text or app strings, and it doesn't establish a winner for translation into and out of Chinese across all those uses.

Also, keep the model name attached: the result is for ChatGPT-4, not an unspecified version of ChatGPT.

For your own comparison, give both tools the same source text and have the Chinese checked. Keep that separate from the published scores rather than calling your preferred output proof of overall accuracy.

Chinese translators: Baidu, Youdao, Tencent and Alibaba

Baidu Translate, at fanyi.baidu.com, says it supports translation between 200+ languages across nearly 40,000 translation directions. That tells you about its coverage, not how accurately it'll translate your particular Chinese text.

For API costs, here's the listed pricing as of November 2026:

• Youdao charges 48 CNY per million characters for common language pairs. Professional Chinese-English translation costs 60 CNY per million; other pairs cost 100 CNY. There's a 50 CNY trial credit.
• Tencent Machine Translation charges 58 CNY per million characters up to 100 million, then 50 CNY.
• Alibaba Cloud Machine Translation includes 1,000,000 free characters per month, then charges $0.000033 per character ($33 per million).

Which should you test? Start with the pair you need and the price that applies to it. Youdao's listed rate, for example, isn't the same across all pairs.

There isn't a Chinese accuracy comparison for these services in the research cited here. Their language coverage and prices belong in your decision, but neither gives you an accuracy score.

DeepL for Simplified and Traditional Chinese

DeepL added Traditional Chinese in July 2024; Simplified Chinese was already supported. If you're localizing for China and Taiwan, check the target script you've selected rather than leaving the request at "Chinese."

Support isn't an accuracy ranking.

The studies above don't establish whether DeepL is more accurate than ChatGPT-4, Google Translate or the Chinese services listed here. You can include DeepL in your own test, but there's no supported basis here for calling it the most accurate Chinese translator.

Picking a tool for your use

For medical instructions, start with the study results and keep their scope in mind. For a store, site or app, compare translations of your own text in the script you need, then look at API cost and how the service handles your strings.

Google Cloud Translation costs $20 per million characters after 500,000 free a month.

If you're working with markup, Translinga, made by Bitgate, is a translation API for Shopify stores, WordPress sites and apps. It removes Liquid tags, HTML and placeholders before translation, checks replies tag by tag, and retries strings with missing tags. It uses the same language codes as the DeepL and Google Translate APIs and supports several target languages in a request.

Its Fast tier costs $2.50 per million characters; Quality costs $5.00. Spaces count, once per target language. Prepaid credit starts at $5 and never expires; the first $1 is free (about 400,000 characters on Fast). It's in early access: use Get early access on translinga.com to request a key, with no card needed.