OpenAI CEO Sam Altman announced the release of two intermediate AI models, O3 and O4-mini, to enhance the development of GPT-5, underscoring its strategy for market leadership. Microsoft upgraded its Copilot AI with personalization and vision features, boosting competitive differentiation. Meanwhile, Wedbush analyst Dan Ives cut price targets for Tesla (down 43%) and Apple (down 20%) due to tariff risks, highlighting vulnerabilities in tech valuations. Samsung forecasted a 21% profit decline from weak AI chip sales, revealing industry challenges in the semiconductor sector. Lastly, WPP acquired InfoSum to bolster AI-driven advertising capabilities, emphasizing the strategic importance of data-rich marketing solutions.