New AI-related announcements from re:Invent 2023 dominate the event, including new models on Bedrock, batch inference support, and updates to SageMaker, OpenSearch, Neptune, and AWS Marketplace. The newly released Bedrock foundational models include Anthropic Claude 2.1, Amazon Titan Text models, and Stable Diffusion XL 1.0, arriving at a time when the recently discovered vulnerability in ChatGPT has sparked interest. Additionally, SageMaker's HyperPod promises to reduce training time by 40% for large language model (LLM) models, while vector search is now available on various AWS databases, including DynamoDB, which can be achieved through a no-code integration with OpenSearch. Furthermore, OpenSearch has received an optimized instance family called OR1, and Neptune now supports graph analytics on existing data in Neptune or S3.