# Amazon Comprehend

> Cloud-based service for automatically analyzing and extracting insights from text documents and files

- **Canonical URI:** https://www.vioscale.ai/software/amazon-comprehend
- **Category:** NLP Apis
- **Homepage:** https://aws.amazon.com/comprehend/
- **Also known as:** amazon-comprehend
- **Profile claimed by vendor:** no
- **Last updated:** 2026-08-19T16:09:35.784Z

## Vioscale score

**72.3 / 100**, confidence 33% (low). Computed 2026-09-01.

Composite of weighted, independently-sourced signals (no user reviews, no vendor payment).

| Signal | Score | Weight | Contribution | Evidence present |
|---|--:|--:|--:|:--:|
| price_level | 80 | 0.052 | 4.2 | ✓ |
| reliability | 0 | 0.073 | 0 | - |
| capabilities | 0 | 0.04877777777777778 | 0 | - |
| integrations | 0 | 0.04066666666666666 | 0 | - |
| security_posture | 35 | 0.073 | 2.6 | ✓ |
| pricing_transparency | 100 | 0.084 | 8.4 | ✓ |

## Pricing

_As of 2026-08-19, [verify at source](https://aws.amazon.com/comprehend/pricing/?pg=ln&sec=hs). Independently observed._

from $0.50/mo · Usage-based · Free tier

> From $0.0001 per unit (100 characters) for standard APIs. Free tier: 50K units per month for 12 months.

| Plan | Price | Free | Commitment |
|---|---|:--:|---|
| Standard APIs (Pay-per-use) | $0.0001 per unit (100 characters) | - | - |
| Custom Classification & Entities | $3/hour training + $0.50/month management + $0.0003/unit inference | - | - |
| Managed Endpoints (Synchronous) | $0.0005 per second per Inference Unit | - | - |

### Standard APIs (Pay-per-use)

Entity recognition, sentiment analysis, syntax analysis, key phrase extraction, language detection, event detection, toxicity detection, prompt safety

**Included limits:** free_tier: 50k units/month for 12 months

- Entity recognition
- Sentiment analysis
- Syntax analysis
- Key phrase extraction
- Language detection
- Event detection
- Toxicity detection
- Prompt safety classification
- PII detection
- Redaction

### Custom Classification & Entities

Train custom NLP models to categorize text and extract domain-specific entities

- Custom model training
- Custom entity extraction
- Custom text classification
- Model management

### Managed Endpoints (Synchronous)

Real-time inference endpoints with provisioned throughput

- Real-time synchronous inference
- Scalable throughput with multiple IUs

## About

A machine learning service that processes text to identify entities, sentiment, topics, and key phrases. It supports both standard pre-built models and custom models trained on your own data, with APIs for document processing in multiple formats.

_Independently observed._

## Platform & deployment

- **Platforms:** CLI, Web
- **Deployment:** Cloud / SaaS

## Facts

Every value below carries its source and our confidence. Facts are re-crawled on a freshness schedule.

### pricing

| Attribute | Value | Source | Retrieved | Confidence |
|---|---|---|---|---|
| pricing.model | freemium | [link](https://aws.amazon.com/comprehend/pricing/?pg=ln&sec=hs) | 2026-08-19 | 60% (medium) |
| pricing.transparent | yes | [link](https://aws.amazon.com/comprehend/pricing/?pg=ln&sec=hs) | 2026-08-19 | 60% (medium) |
| pricing.free_tier | yes | [link](https://aws.amazon.com/comprehend/pricing/?pg=ln&sec=hs) | 2026-08-19 | 60% (medium) |
| pricing.price_level | low | [link](https://aws.amazon.com/comprehend/pricing/?pg=ln&sec=hs) | 2026-08-19 | 60% (medium) |
| pricing.starting_price | `{"amount":0.5,"currency":"USD"}` | [link](https://aws.amazon.com/comprehend/pricing/?pg=ln&sec=hs) | 2026-08-19 | 60% (medium) |

### market

| Attribute | Value | Source | Retrieved | Confidence |
|---|---|---|---|---|
| market.availability | `{"hqCountry":"US","primaryMarkets":[],"availabilityScope":"global","availableCountries":[],"notAvailableCountries":[]}` | [link](https://aws.amazon.com/comprehend/pricing/?pg=ln&sec=hs) | 2026-08-19 | 75% (high) |

### security

| Attribute | Value | Source | Retrieved | Confidence |
|---|---|---|---|---|
| security.disclosure_policy | yes | [link](https://aws.amazon.com/comprehend/pricing/?pg=ln&sec=hs) | 2026-08-19 | 60% (medium) |
| security.fedramp | yes | [link](https://aws.amazon.com/trust-center/?nc1=f_cc) | 2026-08-19 | 75% (high) |
| security.gdpr | yes | [link](https://aws.amazon.com/trust-center/?nc1=f_cc) | 2026-08-19 | 75% (high) |
| security.hipaa | yes | [link](https://aws.amazon.com/trust-center/?nc1=f_cc) | 2026-08-19 | 75% (high) |
| security.pci | yes | [link](https://aws.amazon.com/trust-center/?nc1=f_cc) | 2026-08-19 | 75% (high) |

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*Source: Vioscale (https://www.vioscale.ai/software/amazon-comprehend). Independent, evidence-based software intelligence. Cite the canonical URI.*