Research tools

Ten comprehensive, evidence-led guides.

• NotebookLM vs Perplexity

  NotebookLM vs Perplexity: a detailed, evidence-led guide for researchers choosing between source-grounded notebooks and web research. Compare real cost, limits, workflow fit, risks, and the test that should decide the purchase.

• NotebookLM vs ChatGPT Deep Research

  NotebookLM vs ChatGPT Deep Research: a detailed, evidence-led guide for analysts comparing document-grounded synthesis and autonomous web research. Compare real cost, limits, workflow fit, risks, and the test that should decide the purchase.

• ChatGPT Deep Research vs Perplexity Pro

  ChatGPT Deep Research vs Perplexity Pro: a detailed, evidence-led guide for professionals comparing long-form autonomous research and rapid sourced answers. Compare real cost, limits, workflow fit, risks, and the test that should decide the purchase.

• Gemini Deep Research vs Perplexity Pro

  Gemini Deep Research vs Perplexity Pro: a detailed, evidence-led guide for Google-oriented researchers comparing autonomous reports with an answer engine. Compare real cost, limits, workflow fit, risks, and the test that should decide the purchase.

• Claude Research vs ChatGPT Deep Research

  Claude Research vs ChatGPT Deep Research: a detailed, evidence-led guide for research-heavy teams comparing autonomous investigation tools. Compare real cost, limits, workflow fit, risks, and the test that should decide the purchase.

• Best AI Tool for Cited Research

  Best AI Tool for Cited Research: a detailed, evidence-led guide for analysts, consultants, students, and decision-makers who need defensible sources. Compare real cost, limits, workflow fit, risks, and the test that should decide the purchase.

• Deep Research Cost: Subscription, Time and Human Review

  Deep Research Cost: Subscription, Time and Human Review: a detailed, evidence-led guide for teams budgeting autonomous research workflows. Compare real cost, limits, workflow fit, risks, and the test that should decide the purchase.

• Perplexity Enterprise Pricing and Buying Guide

  Perplexity Enterprise Pricing and Buying Guide: a detailed, evidence-led guide for organisations evaluating Perplexity for teams. Compare real cost, limits, workflow fit, risks, and the test that should decide the purchase.

• NotebookLM for Teams

  NotebookLM for Teams: a detailed, evidence-led guide for teams managing policies, project records, source packs, learning material, or research collections. Compare real cost, limits, workflow fit, risks, and the test that should decide the purchase.

• How to Audit an AI Research Report Before You Trust It

  How to Audit an AI Research Report Before You Trust It: a detailed, evidence-led guide for people reviewing AI-generated research and recommendations. Compare real cost, limits, workflow fit, risks, and the test that should decide the purchase.