OpenAI has officially launched GPT-5, promising a faster and more capable AI model to power ChatGPT. The AI company boasts state-of-the-art performance across math, coding, writing, and health advice. OpenAI proudly shared that GPT-5's hallucination rates have decreased compared to earlier models. Specifically, GPT makes incorrect claims 9.6 percent of the time, compared to 12.9 percent for GPT-4o. And according to the GPT-5 system card, the new model’s hallucination rate is 26 percent lower tha...