With Amazon Comprehend, you only pay for what you use. You are charged based on the amount of text processed on a monthly basis. Amazon Comprehend provides natural language processing, topic modeling, and Custom Classification capabilities, enabling a broad range of applications that can analyze text.
- Natural Language Processing: Amazon Comprehend requests for Entity Recognition, Sentiment Analysis, Syntax Analysis, Key Phrase Extraction, and Language Detection are measured in units of 100 characters, with a 3 unit (300 character) minimum charge per request.
- Topic Modeling: Topic Modeling identifies relevant terms or topics from a collection of documents stored in Amazon S3. It will identify the most common topics in the collection and organize them in groups and then map which documents belong to which topic. You are charged based on the total size of documents processed per job. The first 100 MB is charged a flat rate. Above 100 MB, you are charged per MB.
- Custom Comprehend: The Custom Classification and Entities APIs can train a custom NLP model to categorize text and extract custom entities. Inference requests are measured in units of 100 characters, with a 3 unit (300 character) minimum charge per request. You are charged $3 per hour for model training (billed by the second) and $0.50 per month for custom model management.
| Price Per Unit | |||
|---|---|---|---|
| Feature | Up to 10M units | From 10M - 50 units | Over 50M units |
| Key Phrase Extraction | $0.0001 | $0.00005 | $0.000025 |
| Sentiment Analysis | $0.0001 | $0.00005 | $0.000025 |
| Entity Recognition | $0.0001 | $0.00005 | $0.000025 |
| Language Detection | $0.0001 | $0.00005 | $0.000025 |
| Syntax Analysis | $0.00005 | $0.000025 | $0.0000125 |
NLP requests are measured in units of 100 characters, with a 3 unit (300 character) minimum charge per request.
Inference requests are measured in units of 100 characters, with a 3 unit (300 character) minimum charge per request.
For the first 100MB
For every MB above 100MB
You are charged based on the total size of documents processed per topic modeling job. The first 100 MB is charged a flat rate. Above 100 MB, you are charged per MB.
For each of the 7 APIs (Key Phrase Extraction, Sentiment Analysis, Entity Recognition, Language Detection, Syntax Analysis, Custom Entities, and Custom Classification) per month, for the first 12 months after signup.
For the Custom Classification and Custom Entities APIs, there is no free tier for model training and custom model management.
Per month, for the first 12 months after signup.
The Amazon Comprehend free tier is available to both new and existing AWS customers for 12 months following your AWS sign-up date.
Amazon Comprehend Medical Pricing
With Amazon Comprehend Medical, you pay only for what you use. You are charged based on the amount of text processed on a monthly basis. Amazon Comprehend Medical provides two APIs: Medical Named Entity and Relationship Extraction (NERe) and Protected Health Information Data Extraction and Identification (PHId).
The Medical NERe API extracts entities, entity relationships, entity traits, and PHI. If customers want to only identify PHI for data protection, they can request the PHId API. All API requests are measured in units of 100 characters, with one unit (100 characters) minimum charge per request.
| Feature | Price per unit |
|---|---|
| Medical Named Entity and Relationship Extraction (NERe) API | $0.01 |
| Medical Protected Health Information Data Extraction and Identification (PHId) API | $0.0014 |
Amazon Comprehend Medical Free Tier
Amazon Comprehend Medical offers a free tier covering 25k units of text (2.5M characters) for the first three months when you start using the service for both the Medical Named Entity and Relationship Extraction (NERe) API and the Protected Health Information Data Extraction and Identification (PHId) API.
Amazon Comprehend pricing examples
Example 1 - Analyzing Customer Comments
Total charge calculation:
Size of each request = 550 characters
Number of units per request = 6
Total Units: 10,000 (requests) x 6 (units per request) = 60,000
Price per unit = $0.0001
Total cost = [No. of units] x [Cost per unit] = 60,000 x $0.0001 = $6.00
Example 2 - Categorizing Documents by Topics
Total charge calculation:
Total megabytes processed = 240
Megabytes billed at a flat rate of $1 = 100
Megabytes billed at $0.004/MB = 140 [240-100]
Total cost of the job = $1.00 + [140 x $0.004] = $1.00 + $0.56 = $1.56
Example 3 - Classifying Customer Feedback using the Custom Classification API
Total charge calculation:
Size of each request = 3,000 characters
Number of units per request = 30 units [3,000 characters ÷ 100 character per unit]
Price per unit = $0.0005
Total cost for units = $0.015 [30 units x $0.0005]
Total hours for model training = 1 hour
Price per hour = $3
Total cost for model training = $3 [1 hour x $3]
Number of months for model management = 1 month
Price per month = $0.50
Total cost for model managment = $0.50 [1 month x $0.50]
Total cost = $3.515 [$0.015 + $3 + $0.50]
Example 4 - Extracting Medical Entities from Clinical Documents
Total charge calculation:
Size of each request = 2,550 characters
Number of units per request = 26 units [2,550 characters ÷ 100 character per unit]
Total Units: 1,000 (requests) x 26 (units per request) = 26,000
Price per unit = $0.01
Total cost = [No. of units] x [Cost per unit] = 26,000 x $0.01 = $260.00
Example 5 - Analyzing Customer Comments using the Custom Entities API
Total charge calculation:
Size of each request = 5,500,000 characters
Number of units per request = 55,000 units [5,500,000 characters ÷ 100 character per unit]
Price per unit = $0.0005
Total cost for units = $27.5 [55,000 units x $0.0005]
Total hours for model training = 1.5 hours
Price per hour = $4.5
Total cost for model training = $3 [1.5 hours x $3]
Number of months for model management = 1 month
Price per month = $0.50
Total cost for model managment = $0.50 [1 month x $0.50]
Total cost = $37 [$27.5 + $4.5 + $0.50]
Learn more about Amazon Comprehend features
