Czech Data Services for AI
Align and automate communications and functions with Czech-speaking audiences using high-quality Czech language data for AI training by Andovar.

1,000+ Hours of
AI-ready Czech Voice Data
1 million mono & bilingual
AI-ready Czech Text Segments for NLP
Leading annotation
Technology & annotators
Czech SMEs
for all major industries
Czech Language Data
Czech (Čeština) is spoken by over 10 million people, primarily in the Czech Republic. A West Slavic language closely related to Slovak, Czech features a highly inflected grammar system, seven cases, vowel length distinctions, consonant clusters, and the use of diacritics that significantly affect meaning. Czech also includes formal and informal registers and regional varieties such as Bohemian, Moravian, and Silesian.
These linguistic features influence NLP, ASR, and MT systems, especially in morphological parsing, tokenization, lemmatization, and speech recognition. High-quality Czech datasets ensure more accurate conversational AI, sentiment analysis, content moderation, and speech-enabled applications.
Data Solution
Crowdsourced Czech data for speech, text and video

Czech Voice Data
Harness the power of Czech voice data to enhance your AI systems
We collect Czech voice datasets across regions and demographics to support ASR, TTS, and conversational AI. Recordings include scripted prompts, spontaneous dialogues, command-and-control data, and bilingual Czech–English speech.
Voice Data Specifications
Hours
1,000+ hours
Device
Mobile, Laptop, Professional Studio
Sample Rate
8 – 88 kHz
Recording Environment
Studio, home, office, outdoor, multi-background noise
Use Cases
ASR, Chatbot training, Language modelling, TTS

Czech Transcription
Transform Czech audio and video content into text with precision
We transcribe Czech audio from interviews, support calls, TV and radio content, legal recordings, corporate media, and social platforms. Native linguists ensure correct diacritics, spelling, formatting, and register. Optional Czech–English translation is available.

Czech Data Annotation
Enhance your AI models with expertly annotated data
We annotate Czech text, speech, images, and videos for NLP, machine learning, and computer vision models. Annotators are trained in Czech morphology, case endings, slang, and domain-specific terminology.

Czech Text Data
Leverage our extensive Czech text datasets for your AI projects
We supply Czech corpora from news, finance, e-commerce, legal documents, healthcare, entertainment, government publications, and social media.

Custom Czech Data Projects
Tailor your Czech data needs with our custom projects
We develop custom Czech datasets including OCR for printed and handwritten Czech, terminology sets, call center dialogues, legal and financial corpora, and multilingual Czech–English or Czech–Slovak resources, all compliant with GDPR.
Text Data
- News
- Books
- Academic texts
- Blogs
- Reviews
- Medical and legal documents
Visual and Multimedia Data
- Captions
- Subtitles
- Image and video annotations
Domain-Specific Data
- Legal
- Finance
- Manufacturing
- Healthcare
- Government
Conversational Data
- Interviews
- Spontaneous speech
- Dialogues
- Chat logs
Structured and Semi-Structured Data
- Tables
- Spreadsheets
- Forms
- Databases
Miscellaneous Documents
- Receipts
- Emails
- Invoices
- Itineraries
Cultural and Creative Content
- Lyrics
- Jokes
- Folklore
- Recipes
User-Generated Content
- Comments
- Reviews
- Q&A
- Forums
Language and Linguistic Data
- Morphology
- Dialectal corpora
- Pronunciation datasets
Interactive & Instructional Content
- Tutorials
- FAQs
- App scripts
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