Grok Emerges as Top Choice for Workplace AI Chatbots
A recent study conducted in December 2025 by Relum, a casino games aggregator, has identified Elon Musk’s Grok as one of the most reliable AI chatbots for workplace use. The study revealed that Grok boasts an impressively low hallucination rate of just 8%, outperforming other major models in the market.
Among the 10 chatbots tested, Grok’s performance stood out with its factual prowess despite its lower market visibility. In comparison, market leaders like ChatGPT and Google’s Gemini recorded significantly higher hallucination rates of 35% and 38% respectively, highlighting Grok’s accuracy and reliability.
Grok Leads in Hallucination Metric
The research evaluated chatbots based on various factors including hallucination rate, customer ratings, response consistency, and downtime rate. Each chatbot was assigned a reliability risk score ranging from 0 to 99, with higher scores indicating potential issues.
Grok excelled with an 8% hallucination rate, a customer rating of 4.5, consistency rating of 3.5, and a minimal downtime rate of 0.07%, resulting in an impressive risk score of just 6. DeepSeek closely followed with a 14% hallucination rate and zero downtime, earning a stellar risk score of 4. On the other hand, ChatGPT’s high hallucination and downtime rates placed it at the top of the risk score chart with a score of 99, followed by Claude and Meta AI with reliability risk scores of 75 and 70 respectively.

Significance of Low Hallucination Rates
Razvan-Lucian Haiduc, the Chief Product Officer at Relum, emphasized the importance of the study’s findings. With AI chatbots becoming increasingly integral to workplace operations, companies must prioritize reliability and accuracy when selecting chatbot solutions.
Haiduc stated, “As AI tools are increasingly relied upon in everyday work, organizations need to choose chatbots that align with their specific business requirements. Popular chatbots may not always be the most suitable for every industry or task, making accuracy a critical factor in decision-making.”
The study sheds light on the disparity between the popularity and performance of AI chatbots, with Grok’s low hallucination rate positioning it as an ideal choice for accuracy-sensitive applications. Despite its lower user adoption compared to mainstream AI applications like ChatGPT, Grok’s reliability and factual accuracy make it a standout performer in the workplace AI chatbot landscape.

