Gemini 4 Argon matches GPT-6 Astra and hallucinates far less in early tests

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Google’s Gemini 4 Argon is level with OpenAI’s GPT-6 Astra in early independent tests. It scored 53 on the Artificial Analysis Intelligence Index, the same as GPT-6 Astra and one point ahead of GPT-6.1 Sol, Artificial Analysis said. Anthropic’s Claude Opus 5.5 still leads the index, with 58.

The score is 23 points above Gemini 3.1 Pro Preview, Google’s last model above the Flash class. The benchmarking firm said it puts Google back among the top three AI labs. Google unveiled Argon on Wednesday and has so far given it only to a small group of cyber defenders.

Fewer hallucinations, more tokens

Argon had a hallucination rate of 15% on AA-Omniscience, a test of factual knowledge. That is the lowest of any model scoring 45 or more on the index. GPT-6 Astra came in at 51% and GPT-6.1 Sol at 54%. Argon more often admits it does not know an...

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