The introduction of a new AI technology like Gemini typically generates positive sentiment among investors, as it showcases the company's commitment to staying at the forefront of technological advancements. The direct integration into products and services, such as Android's Pixel 8 Pro and Bard, as well as the future integration into Chrome and Firebase, indicates potential for increased user engagement and revenue streams. The slight increase in stock price on the announcement day suggests a modest positive market reaction.

GOOGL shares, representing Alphabet Inc's Class A stock, are likely to mirror the sentiment around GOOG shares, as both reflect the performance of the same company. The announcement of Gemini AI and its integration into various platforms could be seen as a positive development for Alphabet's AI strategy, potentially leading to increased investor confidence and a positive impact on GOOGL's stock price in the short term.