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Grok Tops AI Chatbot Reliability, Leaves Competitors Behind

12/25/2025

25 3 Full Breakdown

Summary

Story summary

In December 2025, Relum named Elon Musk's Grok the most reliable AI chatbot for workplace use, with an 8% hallucination rate.
ChatGPT had a 35% hallucination rate, while Google’s Gemini reached 38%.
The Relum study evaluated chatbots on various metrics and assigned Grok a low reliability risk score of 6.
DeepSeek scored 4.
Relum's Chief Product Officer stressed reliability in selection as 65% of U.S. companies now use AI chatbots.

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Story summary

In December 2025, Relum named Elon Musk's Grok the most reliable AI chatbot for workplace use, with an 8% hallucination rate.
ChatGPT had a 35% hallucination rate, while Google’s Gemini reached 38%.
The Relum study evaluated chatbots on various metrics and assigned Grok a low reliability risk score of 6.
DeepSeek scored 4.
Relum's Chief Product Officer stressed reliability in selection as 65% of U.S. companies now use AI chatbots.