# Pricing transcribed from the provider's own page — see provenance. Numbers are quoted, not derived.
generated: '2026-09-20'
method: searched
source: https://aws.amazon.com/comprehend/pricing/
sources:
- https://aws.amazon.com/comprehend/pricing/
provenance:
  tool: planning/api-economics/harvest_pricing.py
  run: 20260920T120546
  grounding: every price_text was found verbatim in the fetched page text
audience: developer-api
pricing_basis: per-call
delivery:
  delivery: managed
  method: page
  read: '2026-09-20'
published: true
note: Most per-unit price values on the page are unrendered template tokens ({priceOf!...}), so the tiered
  NLP/PII/toxicity table prices are not visible. Only endpoint, training, model management prices and
  free tier are shown as literal numbers; pricing examples cite unit prices like $0.0001 and $0.0005 illustratively.
plan_count: 4
currency: USD
plans:
- name: Custom Comprehend - synchronous classification and entity recognition endpoint
  price_text: $0.0005 PER IU PER SECOND
  price: 0.0005
  currency: USD
  period: per-use
  unit: inference unit (IU) per second
  included_quota: One inference unit (IU) provides a throughput of 100 characters/second
- name: Custom model training
  price_text: $3 per Hour for Model Training
  price: 3
  currency: USD
  period: per-use
  unit: hour (billed by the second)
- name: Custom model management
  price_text: $0.50 per month for custom model management
  price: 0.5
  currency: USD
  period: month
  unit: custom model
- name: Free Tier
  price_text: 50K UNITS OF TEXT (5M CHARACTERS)
  period: month
  unit: per API per month
  included_quota: 50K units of text (5M characters) per API per month; 5 jobs up to 1MB each (Topic Modeling);
    available for 12 months
rate_limit_statements:
- These requests are measured in units of 100 characters (1 unit = 100 characters), with a 3 unit (300
  character) minimum charge per request.
- Endpoints are billed on one second increments, with a minimum of 60 seconds.
- For volumes higher than 100M units per month, please contact us for pricing.