ChatGPT, Claude, Gemini in group chat catch each other's hallucinations

capibara13 · reddit · 2026-08-24

Author put ChatGPT, Claude, and Gemini in a group chat to solve a complex problem. ChatGPT gave a confident but wrong answer (hallucinated a tax rule), Claude flagged it but overcorrected math, Gemini as judge produced flawless final answer. Conclusion: AI self-review repeats assumptions; cross-model fact-checking exposes blind spots. Author built a site for real-time model debates.

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