In this presentation, we will speak on how to use RisingWave stream processing database to write efficient stream-processing jobs for real-time market data enriched with NLP-based indicators from Chat-GPT. Discover how we can reduce costs by minimizing recomputation of outputs as new data streams in and optimizing external API calls through effective filtering and caching techniques. Explore the benefits of using RisingWave to process market data while harnessing Chat-GPT's insights, enabling cost-effective decision-making in real-time market analysis.