Supported Languages

Document Number	Revision Number	Revision Date
KN. GU.20.EN	Rev19	03.04.2026

The supported languages and corresponding services are listed below. If a new language is required, please reach out to Sestek.

Important Note

The languages listed below are supported only for AI Agents.

For languages supported by Speech Recognition, please visit this link.
For languages supported by Text-to-Speech, please visit this link.

Languages	Code	Demo	NLU	Text-norm	Sentence Embedding	NER	Survey	Confirmation Phrases	Template Flow	Sentiment Analysis	Summarization with LLM (online)	Utterance Generation (online)
Turkish	tr-TR	+	+	+	+	+	+	+	+	+	+	+
English	en-US	+	+	+	+	+	+	+	+	+	+	+
Arabic	ar-SA	+	+	+	+	+	+	+	+	+	+	+
Latvian	lv-LV	+	+	+	+	Basic	+	+	+	+	+	+
Russian	ru-RU	+	+	+	+	Basic	+	+	+	+	+	+
Spanish	es-ES	+	+	+	+	Basic	+	+	+	+	+	+
Urdu	ur-PK	+	+	+	+	Basic	+	+	+	+	+	+
French	fr-FR	+	+	+	+	Basic	+	+	+	+	+	+
Dutch	nl-NL	+	+	+	+	Basic	+	+	+	+	+	+
German	de-DE	+	+	+	+	Basic	+	+	+	+	+	+
Italian	it-IT	+	+	+	+	Basic	+	+	+	+	+	+
Azerbaijani	az-AZ	+	+	+	+	Basic	+	+	+	+	+	+
Malay	ms-MY	+	+	+	+	Basic	+	+	+	+	+	+
Tagalog	tl-PH	+	+	+	+	Basic	+	+	+	+	+	+
Thai	th-TH	+	+	+	+	Basic	+	+	+	+	+	+
Swahili	sw-KE	+	+	+	+	Basic	+	+	+	+	+	+

Our AI Agents product has some features that every language must involve. In addition to them, we provide other features for our clients that are available for most languages.

Must-have features:
• NLU
• Sentence Embedding
• Confirmation Phrases
• Named Entity Recognition (NER)
Note: NER being basic refers to being able to catch numbers, serial numbers and list type entities.

Nice-to-have features:
• Text-Normalization
• Prebuilt Survey
• Template Flow
• Sentiment Analysis
• Summarization
• Utterance Generation

Documentation Index

Supported Languages