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IBM Watson Natural Language Understanding

Freemium

AI-powered API that extracts entities, sentiment, keywords, and more from any text.

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4.6 Editor Rating
Vetted Score
4.6 / 5.0

Earns a high score for its robust multilingual capabilities, flexible API, and strong IBM security standards.

Key Features
Entity Extraction

Identifies people, organizations, locations, and other entities within text, supporting multiple languages.

Sentiment Analysis

Analyzes the emotional tone of content, providing positive, negative, or neutral scores.

Keyword & Concept Detection

Highlights key terms and underlying concepts to summarize document relevance.

Frequently Asked Questions

Yes, a free tier provides up to 30,000 NLU units per month with limited features.

Charges are based on the number of NLU units processed, starting at $0.003 per unit with volume discounts.

IBM offers data encryption in transit and at rest, and you can opt for data not to be stored after processing.
Specifications
Pricing Model Offers a free tier with limited API calls and paid usage plans starting at $0.003 per NLU unit.
Supported Platforms
Web (API)WindowsmacOSLinux