kitio.aiAdded Nov 5, 2026
Amazon Comprehend
FreemiumAWS natural language API for entities, sentiment and classification
What is Amazon Comprehend?
Amazon Comprehend is an AWS service that uses machine learning to pull insights from unstructured text, such as entities, key phrases, sentiment, language and topics. Developers call it through an API to analyze customer feedback, documents and support tickets at scale.
Pretrained APIs cover common tasks, and custom classification and custom entity recognition let you train models on your own labeled examples and serve them from managed endpoints. Topic modeling jobs group large document sets by theme.
Pricing is per unit of 100 characters for standard requests, with separate charges for custom model training, endpoint inference units and model storage. A 12-month free tier covers 50,000 units of text per API each month, and a separate Comprehend Medical service handles clinical text.
Features
- Entity and key phrase extraction
- Sentiment analysis
- Custom classification
- Custom entity recognition
- Topic modeling
Tags
Releases
+ Submit new release- Listed
Amazon Comprehend was added to the directory.
Organization
Amazon Web Services
🇺🇸 United States
Listed by kitio.ai · unverified owner
Pricing
- Pricing model
- Freemium
- Paid options from
- Not listed
Amazon Comprehend plans
Free Tier
Free
- 50K units of text per API monthly
- First 12 months only
Standard APIs
$0.0001 / unit (100 characters)
- Entities, sentiment, key phrases
- Volume discounts at scale
Custom models
$3 / training hour
- Endpoint inference billed per second
- Monthly model storage fee
Prices in USD, checked Nov 5, 2026. Plans change often, so confirm on the Amazon Comprehend site.Official pricing
Sponsored
Your AI tool here
A Featured launch puts your tool in this spot and on the home page for a week.
Top Amazon Comprehend alternatives
View allData & analytics
IBM text analytics API for entities, sentiment, emotion and categories
Data & analytics
AWS OCR service that extracts text, forms and tables from documents
Data & analytics
On-premise NLP library for sentiment, entities and text categorization
Data & analytics
Language analytics API that measures psychology from text
Compare Amazon Comprehend
If you liked Amazon Comprehend
- TextRazorNew
NLP API for entity extraction, topic tagging and classification
FreemiumData & analyticsMade in United Kingdom Microsoft cloud API for sentiment, entities, PII and text summaries
FreemiumModels & APIsMade in United StatesAWS computer vision API for images and video analysis
FreemiumImageMade in United StatesPre-trained API for entities, sentiment and text classification
FreemiumModels & APIsMade in United States- TisaneNew
NLP API for content moderation, abuse detection and entity extraction
Freemium · $99/moModels & APIs
Pros and cons
Pros
- No ML expertise needed for basic APIs
- Custom models on your own labels
- Scales with other AWS services
Cons
- Free tier lasts only 12 months
- Custom models have no free tier
- Costs can be hard to estimate
Prompts & results
No prompts yet. Add your own prompt and output to help others use this tool.
Share a prompt
Reviews
Q&A
What is Amazon Comprehend?
Amazon Comprehend is an AWS service that uses machine learning to pull insights from unstructured text, such as entities, key phrases, sentiment, language and topics. Developers call it through an API to analyze customer feedback, documents and support tickets at scale.
Does Amazon Comprehend have a free tier?
Yes. For 12 months from your first request it covers 50,000 units of text (5 million characters) per API per month, though custom models are excluded.
How much does Amazon Comprehend cost?
Amazon Comprehend is freemium.
Is there a free version of Amazon Comprehend?
Yes. Amazon Comprehend has a free plan, and paid plans add more usage and features.
What are the main features of Amazon Comprehend?
Entity and key phrase extraction, Sentiment analysis, Custom classification, Custom entity recognition, Topic modeling.
Who makes Amazon Comprehend?
Amazon Comprehend is made by Amazon Web Services.
What are the best alternatives to Amazon Comprehend?
Popular alternatives include IBM Watson Natural Language Understanding, Amazon Textract, Lexalytics Salience.