Legacy Deep Research model

Overview

The legacy Deep Research model refers to the original implementation of deep research capabilities in AI systems, particularly in ChatGPT Deep Research.

Key Features

Comparison with New Models

  • 2026-04-14: New ChatGPT Deep Research update provides granular control over research sources and integrates directly with third-party applications, making it significantly more powerful than the legacy Deep Research model.

Source Notes

  • 2026-04-14: # Updated NotebookLM features --- --- https://www.youtube.com/watch?v=sSa8-tRIwak Here is a summary of the video detailing 7 Business Use Cases for Google NotebookLM’s New Features, presented by Rick Mulready. Overview Google has updated NotebookLM (accessible (Updated NotebookLM features)