How Taxbit Built a Grounded, Role-Aware AI Assistant on Amazon Bedrock AgentCore

What happened

Taxbit describes how it built Taxbit Assist, an AI assistant embedded in its dashboard, using Amazon Bedrock AgentCore. The post covers its permission-aware design, curated knowledge base and retrieval pipeline, including semantic chunking and reranking, along with safety controls and continuous production evaluation. Taxbit says the assistant has operated in the US and EU since May 2026, with in-geography inference for EU traffic.

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The story so far

AWS explained how Taxbit built Taxbit Assist, an AI assistant embedded in its dashboard, on Amazon Bedrock AgentCore. The assistant uses a curated knowledge base and retrieval pipeline with semantic chunking and reranking, alongside safety controls and ongoing production evaluation. Taxbit said the current version cannot read customer tax data and that model costs average under 20 cents per conversation. Taxbit said the assistant has operated in the US and EU since May 2026, with EU traffic handled by in-geography inference.