OpenAI launched the GPT Store featuring over 3 million custom versions of ChatGPT accessible to Plus, Team, and Enterprise users, with weekly highlights of impactful GPTs like AllTrails. The new ChatGPT Team plan offers advanced models including GPT-4 and DALL·E 3, alongside collaborative tools and enhanced data privacy. Discussions around AI-generated imagery favored DALL·E and Stable Diffusion, while users faced rate limit challenges and debated the GPT Store's SEO and categorization.

Ethical considerations in prompt engineering were raised with a three-layer framework called 'The Sieve'. Additionally, DeepSeek-MoE was noted for its range of Mixture of Experts (MoE) model sizes. "The Sieve," a three-layer ethical framework for AI, was highlighted in prompt engineering discussions.