いくつかの例文を使ってAI Smart翻訳の翻訳精度と大手翻訳サービスの精度を比較します。

※文中の色が変わっている箇所にカーソルを合わせると、指摘理由や評価理由が表示されます。

例文

著作権の保護の歴史は非常に古く、15世紀中頃の印刷術の発明に始まるといわれ、ヨーロッパ諸国では18世紀から19世紀にかけて、著作権の保護に関する法律が作られました。
また、多くの国々が陸続きで接し合うヨーロッパでは、著作権は国を越えて保護しなければ意味がないため、19世紀後半から、ヨーロッパ各国の間で、二国間条約による相互保護が行われてきましたが、明治19年9月9日、10カ国がスイスのベルヌに集まり、いわゆる「ベルヌ条約（文学的及び美術的著作物の保護に関するベルヌ条約）」が作成されました。

Google翻訳

Copyright protection has a very long history, dating back to the invention of printing in the mid-15th century, and laws regarding copyright protection were enacted in European countries from the 18th to the 19th century.
Furthermore, in Europe, where many countries are connected by land, copyright is meaningless unless it is protected across borders, so mutual protection has been implemented between European countries through bilateral treaties since the late 19th century.
However, on September 9, 1888, ten countries gathered in Berne, Switzerland, and created the so-called Berne Convention (Berne Convention for the Protection of Literary and Artistic Works).

総評) 全体的に読みやすい文章であり、原文の意味を正確に捉えて翻訳できている。ただし、一部の表現が不自然で、専門用語の訳が適切でない。

DeepL

The history of copyright protection is very old, beginning with the invention of the art of printing in the mid-15th century, and laws concerning copyright protection were created in the 18th and 19th centuries in European countries.
In Europe, where many countries border each other on land, copyrights are meaningless unless they are protected across national boundaries, and since the latter half of the 19th century, mutual protection has been provided by bilateral treaties among European countries.
On September 9, 1887, ten countries met in Berne, Switzerland, and the so-called Berne Convention (Berne Convention for the Protection of Literary and Artistic Works) was drawn up.

総評) 原文の核心は伝えているが、不自然さ、単調さ、日付誤りなどの誤訳などが目立ち、洗練さに欠ける。

国産翻訳エンジンM社

Copyright protection has a very long history, beginning with the invention of printing in the mid- 15 century, and European countries enacted copyright protection laws between the 18 and 19 centuries.
In Europe, where many countries meet by land, copyright has no meaning without cross-country protection.
Since the latter half of the 19 century, European countries have protected each other by bilateral treaties. On September 9, 1886, 10 countries gathered in Berne, Switzerland, and the so-called Berne Convention for the Protection of Literary and Artistic Works was drawn up.

総評) 原文の核心は伝えているが、不自然さ、単調さ、誤訳などが目立ち、洗練さに欠ける。

国産翻訳エンジンY社

The history of copyright protection is very long, and it is said that it began with the invention of printing in the middle of the 15th century, and laws on copyright protection were created in the European countries from the 18th to the 19th century.
In addition, in Europe, where many countries come into contact with each other by land, copyright must be protected across countries, so since the latter half of the 19th century, bilateral treaties have been used to protect each other among European countries.
However, on September 9, 1901, 10 countries gathered in Berne, Switzerland, and the so-called Berne Convention (Berne Convention for the Protection of Literary and Artistic Works) was created.

総評) 原文の意味は伝えているが、表現の不自然さ、冗長さ、また、致命的な日付の誤訳などがあるためプロの翻訳としては物足りない。

AI Smart翻訳

The history of copyright protection is ancient, and it is believed to have originated with the advent of the printing press in the mid-15th century.
In Europe, copyright protection laws were enacted between the 18th and 19th centuries.
Given that numerous European countries are connected by land, copyright protection needed to be enforced beyond national boundaries to be effective. Consequently, from the latter half of the 19th century, bilateral treaties for reciprocal protection were negotiated among European nations. On September 9, 1886, delegates from 10 countries convened in Bern, Switzerland, to establish the 'Berne Convention for the Protection of Literary and Artistic Works'.

総評) 一部の表現が冗長な部分もあるが、原文の意味を正確に伝えつつ、読みやすい文章になっている。

採点基準

• ■50点以下： かろうじて意味は通じる
• ■60点〜： 多少違和感があるがとりあえず文章は読むことができる
• ■70点〜： ほとんど違和感がない
• ■80点〜： ほとんどネイティブの人間が書く文章に近い
• ■90点〜： プロの翻訳者レベル