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Building a WhatsApp Fact Checker with LLM

June 26, 2024

Misinformation is a growing problem, especially in local communities where WhatsApp is the primary communication channel. In this post, I’ll walk you through how I built an AI-powered fact-checking bot that combats false information in real-time.

The Problem

In many Indian communities, WhatsApp groups are the primary source of news and information. Unfortunately, this also makes them a breeding ground for misinformation…

The Solution

I decided to build a bot that could automatically fact-check claims…

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Technical Implementation

# Example code snippet
def process_message(message):
    # Claude analyzes the claim
    analysis = claude_api.analyze(message)
    
    # Perplexity fact-checks
    facts = perplexity_api.search(analysis.claim)
    
    return generate_response(facts)

Lessons Learned

1. Rate limiting is crucial - WhatsApp has strict limits
2. Context matters - Short messages need smart interpretation
3. Testing is essential - Unit tests caught many edge cases

Results

The bot has successfully…

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