Text Annotation & NLP
Professional text annotation tools for NLP and natural language understanding. Create high-quality training data for language models with AI assistance.
Comprehensive NLP Annotation Tools
Everything you need for professional text annotation
Named Entity Recognition
Label entities like people, organizations, locations, dates with custom entity types and hierarchies.
Sentiment Analysis
Annotate sentiment, emotions, and tone with multi-dimensional scoring and aspect-based analysis.
Text Classification
Multi-label classification with custom taxonomies, hierarchies, and conditional rules.
Relation Extraction
Define and annotate relationships between entities with typed relations and attributes.
Coreference Resolution
Link mentions of the same entity across text with chain visualization and validation.
Dependency Parsing
Annotate syntactic structure and grammatical relationships for advanced NLP tasks.
AI-Assisted Annotation
Accelerate your NLP workflow with state-of-the-art language models
GPT-4 Pre-labeling
Leverage GPT-4 for intelligent pre-annotation of entities, classifications, and relations with human review.
Entity Suggestions
ML-powered entity suggestions based on context and historical annotations with confidence scores.
Smart Auto-complete
Context-aware auto-completion for faster annotation with custom dictionaries and pattern matching.
Powering NLP Applications
Trusted by leading companies for language AI
Chatbots & Virtual Assistants
Train intent classification, entity extraction, and dialogue systems for conversational AI.
95% intent accuracyDocument Processing
Extract structured data from contracts, invoices, medical records, and legal documents.
10M+ documents processedContent Moderation
Detect toxic content, hate speech, spam, and policy violations for safe communities.
Real-time detectionSearch & Information Retrieval
Build semantic search, question answering, and knowledge graph extraction systems.
50% better relevanceEnterprise-Grade Text Annotation
Built for multilingual NLP at scale. Handle everything from small datasets to billion-token corpora with enterprise features.
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