Claude 4.6 vs GPT-5.2 Hallucination Comparison: Anthropic vs OpenAI Accuracy in Frontier Model Benchmarks

https://bizzmarkblog.com/what-if-everything-you-knew-about-ai-risk-management-was-wrong/

Analyzing Hallucination Rates in Claude 4.6 and GPT-5.2 with AA-Omniscience Benchmark Results Comparison of Hallucination Frequency Metrics As of April 2025, the AI model race between Anthropic’s Claude 4.6 and OpenAI’s GPT-5