Evaluation of Modern Large Language Models as Tools for Financial Due Diligence: Gemini 2.5 Pro Preview, GPT 4.1, & Claude Sonnet 4

This study is a comparative evaluation of the currently released versions of three leading large language models (LLMs), GPT 4.1, Claude Sonnet 4, Gemini 2.5 Pro Preview, and their performance on several financial due diligence tasks relevant to private equity. Utilizing ToltIQ’s database of hundreds of real-world use cases...