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AWS NLP API for entities, sentiment, PII and custom classification
Updated
Amazon Comprehend is a managed natural language processing service on AWS. It extracts entities, key phrases, sentiment and PII from text, and supports custom classification and entity models.
You call the Comprehend API with text, in real time or in asynchronous batches, and receive structured JSON results. Usage is billed per unit of 100 characters with a 3-unit minimum per request. For custom models you pay for training time, monthly model management and inference.
Comprehend is used by developers and data teams on AWS that need NLP in applications for support analysis, compliance review and content moderation.
Entity recognition, sentiment and Detect PII cost $0.0001 per unit of 100 characters. Event detection costs $0.003 per unit. Custom model training is $3 per hour and model management is $0.50 per month. The free tier gives 50,000 units per API per month for 12 months.
Alternatives include Google Cloud Natural Language, which offers similar entity and sentiment APIs, Azure AI Language, which adds conversational language understanding, and spaCy, which is an open-source NLP library.
Pricing Model
USAGE BASED
Starting Price
$0/mo
Free Options
Free version
| Feature | Standard APIs | Custom models | Custom |
|---|---|---|---|
| Per 100-character unit | , | , | |
| Entity, sentiment and Detect PII | , | , | |
| 3-unit minimum per request | , | , | |
| Training at $3 per hour | , | , | |
| Model management $0.50 per month | , | , | |
| Inference $0.0005 per unit | , | , | |
| Free tier: 50,000 units per API per month for 12 months | , | , |
Other
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API Types
SDK Availability
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Developer Features
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Compliance Standards
SOC 2 Type II
EnterpriseISO 27001
EnterpriseGDPR Compliant
GlobalHIPAA
HealthcarePCI DSS
FinanceCCPA
PrivacyFedRAMP
GovernmentCSA STAR
CloudDeployment & Data
Data Residency Options
Verify with vendor for your specific region requirements.
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