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Hallucination rate comparison: Gemini 4 Argon at 15%, GPT-6 Astra at 45%

A comparison of model hallucination rates shows Gemini 4 Argon at just 15%, far below Grok 4.7 at 29%, GPT-6 Astra at 45% and Opus 5.5 at 59%.

Mr Nobody

@Airo_07Archived 2026.10.02Originally posted 2026.10.01

Hallucination rate comparison: Gemini 4 Argon at 15%, GPT-6 Astra at 45%

Mr Nobody @Airo_07Originally posted 2026.10.01

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Gemini 4 Argon might have learned AI’s most underrated skill: saying “I don’t know.” Hallucination rate: Gemini : Argon: 15% Grok 4.7: 29% GPT-6 Astra: 45% Opus 5.5: 59% Fable 5.1: 69% Argon would rather admit uncertainty than make something up. Bro is truthful AI 😂

x.com/airo_07/status/2105480328924344584Archived 2026.10.02 10:06