OpenAI's newly launched ChatGPT-5 will be integrated into Apple's AI assistant platform Apple Intelligence with the upcoming iOS 26, iPadOS 26, and macOS Tahoe, reports stated. Currently, iOS 18, iPadOS 18, macOS Sequoia, and visionOS 2 use GPT-4o model. The upgrade will make Siri handle complex queries, improve Writing Tools for text generation, and boost Visual Intelligence capabilities.