Meta releases heavyweight new products: Quest 3S headset, AR glasses prototype, multimodal AI model for $299. At its annual developer conference on Wednesday, US tech giant Meta unveiled its latest virtual reality (VR) headset, Quest 3S, with a starting price of $299. In addition, Meta has also released a multimodal big language model and an AR glasses prototype. After the announcement, Meta's stock price rose in the short term and reached a historic high.