Amazon Comprehend is billed per use with no upfront fee for on-demand rates. Main rates in US East (N. Virginia): $2.00 per 1M Unit ($0.000002 per Unit for ContainsPiiEntities:ContainsPiiEntities); $0.003 per Unit ($0.003 per Unit for DetectEvents:DetectEvents); $0.50 per Unit (Processes Custom Classification model storage request in us-east-1). Prices from the AWS Price List published September 11, 2026.
On-demand rates in US East (N. Virginia), as AWS lists them in the Price List published September 11, 2026.
Source: AWS Price List file for Amazon Comprehend (version 20260911124625), read on November 14, 2026. Prices differ by Region and change without notice; check the AWS pricing page before you commit.
| Rate | Price (USD) | Billed |
|---|---|---|
| $0.000002 per Unit for ContainsPiiEntities:ContainsPiiEntities in US East (N. Virginia) | $2.00 | per 1M Unit |
| $0.000001 per Unit for ContainsPiiEntities:ContainsPiiEntities in US East (N. Virginia) | $1.00 | per 1M Unit |
| $0.0000005 per Unit for ContainsPiiEntities:ContainsPiiEntities in US East (N. Virginia) | $0.50 | per 1M Unit |
| $0.0000001 per Unit for ContainsPiiEntities:ContainsPiiEntities in US East (N. Virginia) | $0.10 | per 1M Unit |
| $0.003 per Unit for DetectEvents:DetectEvents in US East (N. Virginia) | $0.003 | per Unit |
| $0.0015 per Unit for DetectEvents:DetectEvents in US East (N. Virginia) | $0.0015 | per Unit |
| $0.00075 per Unit for DetectEvents:DetectEvents in US East (N. Virginia) | $750.00 | per 1M Unit |
| Processes Custom Classification model storage request in us-east-1 | $0.50 | per Unit |
| Processes Custom Classification model training request in us-east-1 | $0.000833 | per seconds |
| Processes Custom Classification text request in us-east-1 | $500.00 | per 1M Unit |
| $0.0005 per Unit for Endpoint-Time:DocClassification in US East (N. Virginia) | $500.00 | per 1M Unit |
| Processes Custom Entity model storage request in us-east-1 | $0.50 | per Unit |
| Processes Custom Entity model training request in us-east-1 | $0.000833 | per seconds |
| Processes Custom Entity text request in us-east-1 | $500.00 | per 1M Unit |
| $0.0005 per Unit for Endpoint-Time:DetectEntities in US East (N. Virginia) | $500.00 | per 1M Unit |
| Processes Language Detection text requests in us-east-1 - Over 50M | $25.00 | per 1M Unit |
| Processes Language Detection text requests in us-east-1 - Upto 10M | $100.00 | per 1M Unit |
| Processes Language Detection text requests in us-east-1 - Upto 50M | $50.00 | per 1M Unit |
| USD1.0E-4 per Unit for DetectPiiEntities:DetectPiiEntities in US East (N. Virginia) | $100.00 | per 1M Unit |
| USD5.0E-5 per Unit for DetectPiiEntities:DetectPiiEntities in US East (N. Virginia) | $50.00 | per 1M Unit |
| USD2.5E-5 per Unit for DetectPiiEntities:DetectPiiEntities in US East (N. Virginia) | $25.00 | per 1M Unit |
| USD5E-6 per Unit for DetectPiiEntities:DetectPiiEntities in US East (N. Virginia) | $5.00 | per 1M Unit |
| Processes Entity Analysis text requests in us-east-1 - Over 50M | $25.00 | per 1M Unit |
| Processes Entity Analysis text requests in us-east-1 - Upto 10M | $100.00 | per 1M Unit |
| Processes Entity Analysis text requests in us-east-1 - Upto 50M | $50.00 | per 1M Unit |
| Processes Key Phrase detection text requests in us-east-1 - Over 50M | $25.00 | per 1M Unit |
| Processes Key Phrase detection text requests in us-east-1 - Upto 10M | $100.00 | per 1M Unit |
| Processes Key Phrase detection text requests in us-east-1 - Upto 50M | $50.00 | per 1M Unit |
| USD1.0E-4 per Unit for DocClassification:PromptSafety in US East (N. Virginia) | $100.00 | per 1M Unit |
| USD5.0E-5 per Unit for DocClassification:PromptSafety in US East (N. Virginia) | $50.00 | per 1M Unit |
| USD2.5E-5 per Unit for DocClassification:PromptSafety in US East (N. Virginia) | $25.00 | per 1M Unit |
| USD5E-6 per Unit for DocClassification:PromptSafety in US East (N. Virginia) | $5.00 | per 1M Unit |
| USD 1.0E-4 per Unit for DetectTgtSentiment:DetectTgtSentiment in US East (N. Virginia) | $100.00 | per 1M Unit |
| USD 5.0E-5 per Unit for DetectTgtSentiment:DetectTgtSentiment in US East (N. Virginia) | $50.00 | per 1M Unit |
| USD 2.5E-5 per Unit for DetectTgtSentiment:DetectTgtSentiment in US East (N. Virginia) | $25.00 | per 1M Unit |
| Processes Sentiment Analysis text requests in us-east-1 - Over 50M | $25.00 | per 1M Unit |
| Processes Sentiment Analysis text requests in us-east-1 - Upto 10M | $100.00 | per 1M Unit |
| Processes Sentiment Analysis text requests in us-east-1 - Upto 50M | $50.00 | per 1M Unit |
| Processes Syntax Analysis text requests in us-east-1 - Over 50M | $12.50 | per 1M Unit |
| Processes Syntax Analysis text requests in us-east-1 - Upto 10M | $50.00 | per 1M Unit |
AWS Activate credits pay for eligible AWS services, and Amazon Comprehend usage is billed on your AWS invoice like any other service. Activate Founders gives $1,000 to start, up to $5,000; you apply for it yourself. AWS promotional credits do not pay Savings Plans or Reserved Instance upfront fees.
For a larger project on Comprehend, a vetted AWS partner can request funding only partners can file: MAP for a migration, POC to test something, incremental workload funding for new work. For startups that is usually $50K to $150K. Depends on the workload; AWS approves.
| Funding | Who files it | Amount | When it fits |
|---|---|---|---|
| Migration Acceleration Program (MAP) | Your matched AWS partner | $50K to $150K for startups. Depends on the workload; AWS approves. | You are not on AWS yet and want to migrate. |
| Proof of concept (POC) funding | Your matched AWS partner | $50K to $150K for startups. Depends on the workload; AWS approves. | You want to test something, whether or not you are on AWS today. |
| Incremental workload (IW) funding | Your matched AWS partner | $50K to $150K for startups. Depends on the workload; AWS approves. | You are already on AWS and are launching new work: a new AI feature, a new customer or a new contract. |
| AWS Activate Founders | Founder applies | $1,000 to start, up to $5,000 | Self-funded startups with no investor or accelerator behind them. |
| AWS Activate Portfolio | Founder applies | up to $200,000 | Startups backed by a VC firm, accelerator or angel investor that is an AWS Activate Provider. |
| AWS Credits for AI Startups | Invite only (AWS account manager) | $200,000 or more, by invitation | AI startups ready to scale after Activate Portfolio, invited by AWS. |
Enter how much you expect to use in a month. Uses the on-demand rates above (US East (N. Virginia), AWS Price List September 11, 2026). Tiered discounts, free tier allowances and taxes are not included.
A vetted AWS partner checks which AWS funding fits your workload: MAP, POC or incremental workload funding. We reply within 24 hours; your matched partner reaches out within 5 business days.