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Developer builds AI persona, combats hallucination with RAG

The author details the process of building an AI persona named Jane, designed to converse with users in character with a unique voice and backstory. Initial attempts to ground Jane's responses in provided content led to hallucinations, where she fabricated information not present in the source material. The author identified and fixed several bugs, including issues with the retrieval index not updating and the model ignoring retrieved context due to conflicting instructions in the system prompt. Further challenges involved ensuring grounded facts were integrated without breaking the persona's natural conversational style. AI

IMPACT Provides a technical walkthrough for developers building grounded AI personas and addressing common hallucination issues.

RANK_REASON The item describes the technical process of building a specific AI application, not a general release or research breakthrough.

Read on dev.to — LLM tag →

AI-generated summary · Google Gemini · from 1 sources. How we write summaries →

Developer builds AI persona, combats hallucination with RAG

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Tool
The item describes the technical process of building a specific AI application, not a general release or research breakthrough.
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High
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129 days old
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  1. dev.to — LLM tag TIER_1 English(EN) · Abdullah al Mubin ·

    How I Built a Persona Chat Agent and Fought Hallucination — A RAG Story

    <p>I wasn't building another AI chatbot.</p> <p>I was building an AI persona.</p> <p>Someone users could actually have conversations with.</p> <p>A fictional person with:</p> <ul> <li>a backstory</li> <li>opinions</li> <li>psychology</li> <li>memories</li> <li>a unique voice</li>…