Question: Is there a translation tool that can handle long texts, like up to 15k characters, in a single translation?

One of the top tools is O.Translator, an AI-powered document translation service that works with more than 60 languages. It can translate documents up to 20,000 words for $1, so it's good for those on a budget. It also offers private encrypted storage, real-time collaborative translation and an API for direct integration.

Another good option is DeepL, which has more advanced AI translation abilities for English, Spanish, French and other languages. It's good for getting translations that sound natural and are accurate, and it's good for documents, websites and professional use. DeepL offers a free plan with some limits and a paid subscription for more features.

If you're looking for high-quality translations of Asian novels, Omni is a specialized tool that can handle up to 15,000 characters of text per translation. It uses custom-trained language models and offers a range of plans, including a free Starter plan with limited use and a Pro plan with more features. That makes it a good option for authors and publishers who need translations that are accurate and detailed.