Amazon.com Catalog Team built a self-learning generative AI system using Amazon Bedrock AgentCore (self-improving attribute extraction)
Amazon.com (Amazon Selection and Catalog Systems) built a self-learning system for catalog enrichment that extracts structured product attributes and generates titles at massive scale. The system uses multiple smaller worker models, a supervisor agent, and a hierarchical knowledge base that captures learnings from disagreements and feedback signals to continuously improve accuracy without retraining.
- Organization
- Amazon.com
- Industry
- Retail
- Location
- United States
- Published
- January 2026
Why do we believe this deployment?Customer identity, provider attribution, maturity, and source checks
- Customer
- Amazon.com
- Provider
- AWS
- Maturity
- Unknown
- Linked source
- AWS Machine Learning Blog
No explicit deployment-stage evidence found.
Primary read
Use case focus
Showing 3 of 4
- 1Catalog enrichment
- 2Product attribute extraction
- 3Content generation
- Implemented a generator-evaluator multi-model architecture where lightweight worker models handle routine product cases through consensus.
- When workers disagree, a supervisor agent investigates with specialized tools, generates reusable learnings, and stores them in a dynamic hierarchical knowledge base that is injected back into worker prompts.
- The system also ingests seller listing updates, appeals, customer returns, and negative reviews to reinforce the learning loop.
- The article says error and disagreement rates fell continuously as learnings accumulated.
- Costs decrease because supervisor calls are selective, while quality increases across millions of products.
- The system scales catalog accuracy improvement without retraining.
Architecture
A self-learning generator-evaluator architecture uses parallel worker models for routine extraction. Disagreements are routed to a supervisor agent running on Amazon Bedrock AgentCore. The supervisor uses specialized tools, generates generalized learnings, stores them in a hierarchical knowledge base, and feeds those learnings back into worker prompts. The system also incorporates human review via Amazon SQS, runs worker models on Amazon EC2 GPU instances or Amazon Bedrock Runtime, and uses Amazon Bedrock for model access.
Sources & evidence1
- Customer explicitly identified
- Technical implementation details available
AI-generated summary. Verify important details with the linked sources before relying on this case.
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