DeepL, a leading global company in Language AI, today announced an expansion of its popular API offering with two powerful new features: DeepL’s next-generation language model and the DeepL API for Write.
The new model delivers more accurate and reliable translations, while the introduction of DeepL API for Write gives users access to the company’s advanced writing tools, including grammar checking, spelling corrections and more. Together, these updates give DeepL’s rapidly growing API customer base a broader suite of Language AI tools designed to improve communication, boost efficiency and reduce costs.
A step closer to seamless global communication
“Expanding DeepL’s API with next‑generation LLM-driven translations and advanced writing features is a major milestone for us as we continue our mission to break down language barriers for businesses worldwide, enabling faster growth in new markets,” says Sebastian Enderlein, CTO of DeepL.
A new level of integrated language processing
The API is one of DeepL’s most popular solutions due to its flexibility and ease of use — it has become a key tool for companies looking to improve the quality and efficiency of their language workflows through automation. With the DeepL API, businesses can integrate DeepL’s Language AI tools directly into internal and external applications such as email systems, e-commerce platforms and more.
Trusted by industry leaders
Major brands across various industries, including Deutsche Bahn, Weglot, Panasonic Connect, 24Translate and Alza, rely on the DeepL API for programmatic access to DeepL’s specialized Language AI technology.

New features and benefits in the API offering
With these latest updates, DeepL’s API now delivers the following enhanced features and benefits:
- Improved translation quality: Blind tests indicate the new DeepL model outperforms previous versions and key competitors, providing more natural and accurate translations across many language pairs.
- Access to DeepL Write via API: Provides real‑time, AI‑driven writing suggestions, improving business communication at every stage — from drafting emails and marketing copy to refining technical documentation.
Customer story: Alza’s success with DeepL API
“When my team and I prepared for international expansion […] we chose DeepL API, and it proved to be an excellent decision,” says Jakub Kalina, Head of Localization, Alza.
World-class language coverage and security
The DeepL API with the next‑generation language model is now available for 33 languages. DeepL API for Write supports several major business languages and meets strict security standards — data from API Pro accounts is not used to train models.
Want to try DeepL API?
For more information and to test DeepL’s API solution for your business, visit:
https://www.deepl.com/products/api