Which languages a book can be written in
54 languages are on PenWriter’s table. Some a model writes very well and some roughly, and PenWriter says which before you spend a month’s credits. Amazon KDP has its own, shorter list, and the lists do not match.
How well, by language
General reputation, not a test of your copy.
The groups below are how well language models usually write each language. They are not a test of the model your copy of PenWriter is connected to, so read the first chapter closely whatever the group. Where an entry was tried on that model, it says so.
Very well (11)
Models write these about as well as they write anything.
- English (US)
- English (UK)
- Spanish (Español)
- Spanish (Mexico) — Español (México)
- French (Français)
- German (Deutsch)
- Italian (Italiano)
- Portuguese (Brazil) — Português (Brasil)
- Russian (Русский)
- Japanese (日本語)
- Chinese (Simplified) — 简体中文
Well (22)
Written well, with some slips to catch.
- French (Canada) — Français (Canada)
- Portuguese (Portugal) — Português (Portugal)
- Dutch (Nederlands)
- Swedish (Svenska)
- Danish (Dansk)
- Norwegian (Bokmål) — Norsk bokmål
- Finnish (Suomi)
- Polish (Polski)
- Czech (Čeština)
- Romanian (Română)
- Greek (Ελληνικά)
- Bulgarian (Български)
- Ukrainian (Українська)
- Turkish (Türkçe)
- Catalan (Català)
- Hebrew (עברית)
- Arabic (العربية)
- Vietnamese (Tiếng Việt)
- Indonesian (Bahasa Indonesia)
- Malay (Bahasa Melayu)
- Korean (한국어)
- Chinese (Traditional) — 繁體中文
Readably (14)
Readable, with more slips. Plan to read closely and edit.
- Hungarian (Magyar)
- Afrikaans
- Persian (فارسی)
- Urdu (اردو)
- Tamil (தமிழ்)
- Telugu (తెలుగు)
- Marathi (मराठी)
- Gujarati (ગુજરાતી)
- Punjabi (ਪੰਜਾਬੀ)
- Malayalam (മലയാളം)
- Kannada (ಕನ್ನಡ)
- Nepali (नेपाली)
- Filipino
- Swahili (Kiswahili)
Roughly (7)
Rough first drafts. Expect to edit a good deal, and read everything.
- Hindi (हिन्दी)
- Bengali (বাংলা)
- Sinhala (සිංහල)
- Thai (ไทย)
- Amharic (አማርኛ)
- Khmer (ខ្មែរ)
- Burmese (မြန်မာ)
- Hindi. On the model PenWriter is connected to, Hindi came out with invented words in a first trial. Treat the draft as a rough first pass and expect to edit a good deal of it.
- Bengali. On the model PenWriter is connected to, Bengali came out with words that do not exist in a first trial. Treat the draft as a rough first pass and expect to edit a good deal of it.
- Sinhala. Models are noticeably weaker in Sinhala. Treat the draft as a rough first pass and expect to edit a good deal of it.
- Thai. On the model PenWriter is connected to, Thai came out poorly in a first trial. Treat the draft as a rough first pass and expect to edit a good deal of it. Thai has no spaces between words, so a word is counted as about five characters.
- Amharic. Models are noticeably weaker in Amharic. Treat the draft as a rough first pass and expect to edit a good deal of it.
- Khmer. Models are noticeably weaker in Khmer. Treat the draft as a rough first pass. Khmer has no spaces between words, so PenWriter's word counts are approximate.
- Burmese. Models are noticeably weaker in Burmese. Treat the draft as a rough first pass. Burmese has no spaces between words, so PenWriter's word counts are approximate.
What Amazon KDP lists
Read 15 October 2026.
KDP lists 47 languages for books. A language PenWriter can write in may not be one of them: Russian and Swahili are examples. A book in such a language can still be written and its files built, but KDP will not publish it, and PenWriter tells you on the publish page before you spend a week formatting.
Some languages KDP takes only as a Word file, and some only in print. PenWriter builds the Word file where it is needed and says when a language has no Kindle edition.
From KDP’s page Book Supported Languages (opens Amazon’s page in a new tab), as PenWriter’s rules read it. Amazon changes its list; check the page when it matters.
The screens
Not the same question.