1. OpenAI's CEO Sam Altman teases upcoming AI model release with a strawberry photo; 2. Speculation and criticism arise over the prolonged rumors and lack of official announcements; 3. Concerns about the company's stability and key personnel departures are also mentioned.

➀ OpenAI has developed a text watermarking method to detect ChatGPT-written content, but has not released it due to concerns about its effectiveness and potential bias against non-native English writers. ➁ The watermarking technique is not foolproof and can be circumvented by simple methods such as using Google Translate or editing tools. ➂ OpenAI is considering the impact on its customer base and the risk of reverse engineering of its watermarking technique.

1. OpenAI has launched SearchGPT, a new search engine combining AI with web information. 2. The company aims to challenge Google's dominance by emphasizing privacy and quality content. 3. The author expresses a desire for Apple to enter the search market with a privacy-focused solution.

❶ Andrej Karpathy, former Tesla AI director, has demonstrated that reproducing GPT-2 can be done in 24 hours for just $672 using a single 8XH100 node, significantly cheaper than the $100 million cost of training GPT-4. ❷ The project, llm.c, directly implements GPT training in C/CUDA, eliminating the need for complex environments and speeding up the process. ❸ Despite advancements, AI training costs are not decreasing; leading-edge models like GPT-4 still require substantial investment, raising concerns about the environmental impact due to high power consumption.