Decisional AI is an advanced tool particularly designed for financial analysts. Its main function is to generate AI memos by pulling information from a multitude of public and private data sources. Adapting to first principles-based qualitative research, this tool aids in crafting theses, accelerating due diligence, and accelerating portfolio management. One main issue it helps tackle is the constant context switching due to data silos and multiple sources of knowledge. Moreover, it helps reduce the time spent on clerical research work, thus assisting in deepening the thought process. Beyond the generation of memos, Decisional AI also has a unique feature that understands data and documents for auto-populating spreadsheet cells. It effectively helps to streamline workflows by eliminating manual tasks and easing metadata integration processes. With high reliability and security, this tool ensures data confidentiality with no model training required using your data. It supports multiple advanced Large Language Models (LLMs), and also features its proprietary models. It serves multiple types of queries and workflows. Decisional AI's application range includes due diligence and portfolio management, competitive analysis, growth projections and Discounted Cash Flow (DCF) models and table extractions.