Multi-Agent Debate: When AI Agents Argue, Everyone Wins

The Architecture

Instead of one agent generating an answer, I use three:

1. Proposer: Generates the initial answer
2. Critic: Finds flaws, missing nuances, errors
3. Synthesizer: Merges insights into a final answer

Why It Works

Single-agent systems suffer from confirmation bias. The model commits to its first answer and rationalizes around it. With debate:

• The Critic catches hallucinations the Proposer missed
• The Synthesizer resolves contradictions
• Each round improves answer quality measurably

Benchmark Results

The Cost Question

Yes, it's 3x the tokens. But for high-stakes decisions (medical, legal, financial), the accuracy gain is worth every token.