legacy-model-comparison

Model Comparison

Deep Research Implementation Comparison

Comparison between previous Deep Research implementation and current ChatGPT Deep Research model.

Key Differences

• Legacy Deep Research:

  • Limited source control (default academic databases only)
  • No third-party app integration
  • Basic citation generation

• Current ChatGPT Deep Research (2026-04-14 update):

  • Granular source selection control (e.g., Academic Journals, Industry Reports)
  • Direct integration with third-party tools (e.g., Zotero, Mendeley)
  • Enhanced cross-referencing capabilities
  • Significantly more powerful than legacy model

Access Method

• Open chatgpt
• Locate Deep Research in left sidebar (grouped with Pulse, Images, Apps)

Context

This update supersedes the legacy research model, requiring Research Workflow adjustments. See ChatGPT Deep Research documentation for full implementation details.

2026 04 14 Chat Deep Research update Channel Rob the AI Guy

Benchmark: Claude 4.5 vs ChatGPT 5.2

• Subject: Comparison of Claude Opus 4.5 vs ChatGPT 5.2 by Matt Maher.
• Methodology: Utilized a massive, complex “One-Shot Build” benchmark involving an “impossible” PRD.
• Source: YouTube Video

Backlinks

• 2026 04 14 Compare of Claude Opus 45 vs ChatGPT 52 Matt Maher