OpenAI has introduced several updates to its ChatGPT platform, including a forthcoming native shopping feature through a formal partnership with Shopify. This integration, which is close to rollout and will be placed inside the answer panel, will allow users to complete purchases directly within ChatGPT conversations. The feature will compete with similar offerings such as the Copilot Merchant Program and Perplexity AI's 'Buy with Pro.' Shopify will gain access to OpenAI's user base, and the move follows OpenAI's partnership with the Washington Post. OpenAI has released new versions of its language models, notably ChatGPT-4.1 and GPT-4.5. The latest models require users to provide more structured and explicit prompts, as they interpret instructions more literally. OpenAI recommends organizing prompts with clear sections, roles, and formatting, and suggests using XML tags, markdown, and chain-of-thought instructions. The context window has expanded to up to 1 million tokens, and chain-of-thought prompting can boost software engineering performance by 20%. For ChatGPT Plus subscribers, OpenAI has doubled the rate limits for the o3 and o4-mini-high models, enabling up to 100 o3 requests per week, 400 o4-mini messages per day, and 100 o4-mini-high messages per day, with no price change for the Plus tier. The company continues to face infrastructure challenges, particularly regarding GPU availability. GPT-4o is available on the free tier but with limited access. A recent study found that the GPT-4.5 model was able to pass the Turing Test, with 73% of participants believing they were conversing with a human during a five-minute interaction. Researchers emphasize that the model is not conscious or self-aware, and its performance is based on advanced language processing. ChatGPT maintains a global user base of 400 million weekly users. The platform is being compared to other leading AI models, such as DeepSeek, which is praised for long-term context retention and greater customization options.