OpenAI released GPT-5, its most powerful and fastest large language model to date, incorporating a real-time router for task optimization and customizable AI personalities. The model is claimed to reduce hallucinations significantly and enhance writing and coding sophistication. CEO Sam Altman described GPT-5 as a major step towards artificial general intelligence. OpenAI is providing free access to GPT-5 for ChatGPT users and developers via API. The release comes amid intense competition in AI development from multiple tech giants and startups worldwide.