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Feb 19, 2025 · 38m · startup-ideas

ChatGPT Pro ($200/month ) vs Perplexity AI (Free): Building a $5M Startup from Scratch

Greg Isenberg · 32m spoken
0:00 / 0:00
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gold bands on the timeline = statements, start to end. Hover to read, click to jump. CC turns on captions

Greg Isenberg compares ChatGPT Pro's Deep Research feature against Perplexity's Deep Research to evaluate how effectively each AI tool can conceptualize, validate, and scale a startup from scratch to $5 million ARR. Through head-to-head testing across business playbooks, competitive analyses, and MVP constraints, he details the key tradeoffs between ChatGPT's exhaustive analytical depth and Perplexity's rapid, agile research speed.

How this conversation actually went

Every chapter scored 0–10 on four independent dynamics. Hover any point for the reasoning behind the score. Greg holds 100% of the talking time here. How this is scored →

Greg as informed peer 0.0 Guest teaching 0.0 Guest disagreement 0.0 Greg pushing back 0.0
05100:0010:0020:0030:001:14–5:09 · Greg as informed peer 0/10 Formulating the Startup Prompt and Configuring ChatGPT Deep Research Monologue segment where Greg Isenberg introduces the experiment and enters parameters for ChatGPT Deep Research.5:09–9:50 · Greg as informed peer 0/10 Promotion of the Startup Empire Community and Membership Solo promotional ad read for Startup Empire and walkthrough of Perplexity Deep Research interface.9:50–15:35 · Greg as informed peer 0/10 Reviewing Perplexity's Legal Contract Lifecycle Automation Agent Proposal Monologue review analyzing Perplexity's legal contract automation agent proposal and growth phases.15:35–25:54 · Greg as informed peer 0/10 Reviewing ChatGPT Deep Research's AI Sales Outreach Assistant Playbook Monologue evaluation of ChatGPT's AI sales outreach assistant proposal, featuring only a brief one-word interjection from off-camera.25:54–34:33 · Greg as informed peer 0/10 Comparative Evaluation of ChatGPT Pro versus Perplexity Deep Research Monologue benchmarking speed, cost, and competitive depth between Perplexity and ChatGPT Pro.34:33–37:20 · Greg as informed peer 0/10 Analyzing ChatGPT's Non-Obvious Podcast Advertising Platform Proposal Monologue segment detailing ChatGPT's podcast ad marketplace proposal followed by concluding takeaways.1:14–5:09 · Guest teaching 0/10 Formulating the Startup Prompt and Configuring ChatGPT Deep Research Monologue segment where Greg Isenberg introduces the experiment and enters parameters for ChatGPT Deep Research.5:09–9:50 · Guest teaching 0/10 Promotion of the Startup Empire Community and Membership Solo promotional ad read for Startup Empire and walkthrough of Perplexity Deep Research interface.9:50–15:35 · Guest teaching 0/10 Reviewing Perplexity's Legal Contract Lifecycle Automation Agent Proposal Monologue review analyzing Perplexity's legal contract automation agent proposal and growth phases.15:35–25:54 · Guest teaching 0/10 Reviewing ChatGPT Deep Research's AI Sales Outreach Assistant Playbook Monologue evaluation of ChatGPT's AI sales outreach assistant proposal, featuring only a brief one-word interjection from off-camera.25:54–34:33 · Guest teaching 0/10 Comparative Evaluation of ChatGPT Pro versus Perplexity Deep Research Monologue benchmarking speed, cost, and competitive depth between Perplexity and ChatGPT Pro.34:33–37:20 · Guest teaching 0/10 Analyzing ChatGPT's Non-Obvious Podcast Advertising Platform Proposal Monologue segment detailing ChatGPT's podcast ad marketplace proposal followed by concluding takeaways.1:14–5:09 · Guest disagreement 0/10 Formulating the Startup Prompt and Configuring ChatGPT Deep Research Monologue segment where Greg Isenberg introduces the experiment and enters parameters for ChatGPT Deep Research.5:09–9:50 · Guest disagreement 0/10 Promotion of the Startup Empire Community and Membership Solo promotional ad read for Startup Empire and walkthrough of Perplexity Deep Research interface.9:50–15:35 · Guest disagreement 0/10 Reviewing Perplexity's Legal Contract Lifecycle Automation Agent Proposal Monologue review analyzing Perplexity's legal contract automation agent proposal and growth phases.15:35–25:54 · Guest disagreement 0/10 Reviewing ChatGPT Deep Research's AI Sales Outreach Assistant Playbook Monologue evaluation of ChatGPT's AI sales outreach assistant proposal, featuring only a brief one-word interjection from off-camera.25:54–34:33 · Guest disagreement 0/10 Comparative Evaluation of ChatGPT Pro versus Perplexity Deep Research Monologue benchmarking speed, cost, and competitive depth between Perplexity and ChatGPT Pro.34:33–37:20 · Guest disagreement 0/10 Analyzing ChatGPT's Non-Obvious Podcast Advertising Platform Proposal Monologue segment detailing ChatGPT's podcast ad marketplace proposal followed by concluding takeaways.1:14–5:09 · Greg pushing back 0/10 Formulating the Startup Prompt and Configuring ChatGPT Deep Research Monologue segment where Greg Isenberg introduces the experiment and enters parameters for ChatGPT Deep Research.5:09–9:50 · Greg pushing back 0/10 Promotion of the Startup Empire Community and Membership Solo promotional ad read for Startup Empire and walkthrough of Perplexity Deep Research interface.9:50–15:35 · Greg pushing back 0/10 Reviewing Perplexity's Legal Contract Lifecycle Automation Agent Proposal Monologue review analyzing Perplexity's legal contract automation agent proposal and growth phases.15:35–25:54 · Greg pushing back 0/10 Reviewing ChatGPT Deep Research's AI Sales Outreach Assistant Playbook Monologue evaluation of ChatGPT's AI sales outreach assistant proposal, featuring only a brief one-word interjection from off-camera.25:54–34:33 · Greg pushing back 0/10 Comparative Evaluation of ChatGPT Pro versus Perplexity Deep Research Monologue benchmarking speed, cost, and competitive depth between Perplexity and ChatGPT Pro.34:33–37:20 · Greg pushing back 0/10 Analyzing ChatGPT's Non-Obvious Podcast Advertising Platform Proposal Monologue segment detailing ChatGPT's podcast ad marketplace proposal followed by concluding takeaways.

speaking balance: gold is Greg, purple is the guest (3 minute bins)

0:00 · Greg 100% · guest 0%0:00 · Greg 100% · guest 0%3:00 · Greg 100% · guest 0%3:00 · Greg 100% · guest 0%6:00 · Greg 100% · guest 0%6:00 · Greg 100% · guest 0%9:00 · Greg 100% · guest 0%9:00 · Greg 100% · guest 0%12:00 · Greg 100% · guest 0%12:00 · Greg 100% · guest 0%15:00 · Greg 100% · guest 0%15:00 · Greg 100% · guest 0%18:00 · Greg 99.9% · guest 0.1%18:00 · Greg 99.9% · guest 0.1%21:00 · Greg 100% · guest 0%21:00 · Greg 100% · guest 0%24:00 · Greg 100% · guest 0%24:00 · Greg 100% · guest 0%27:00 · Greg 100% · guest 0%27:00 · Greg 100% · guest 0%30:00 · Greg 99.9% · guest 0.1%30:00 · Greg 99.9% · guest 0.1%33:00 · Greg 100% · guest 0%33:00 · Greg 100% · guest 0%36:00 · Greg 100% · guest 0%36:00 · Greg 100% · guest 0%
Sharpest disagreement ▶ 19:35 Solo Format Baseline

This is a solo screencast walkthrough without an active guest debate; interpersonal combativeness remains absent throughout.

 Hardest push from Greg ▶ 27:20 Challenging AI on Market Crowding

Greg pushes back against generic AI legal assistant proposals by asking Perplexity how to avoid heavily funded incumbents.

 Biggest teaching moment ▶ 32:10 Perplexity Competitive Breakdown

Perplexity presents a detailed competitive matrix and $4,800 budget breakdown that impresses Greg with its actionable depth.

 Greg holds their own ▶ 33:00 Distribution as the Real Moat

Greg demonstrates his product expertise by noting that feature roadmaps matter less than go-to-market sequencing and distribution.
the scores for every segment, with the reasoning behind each
ChapterTopicGreg as informed peerGuest teachingGuest disagreementGreg pushing backWhy
Formulating the Startup Prompt and Configuring ChatGPT Deep Research 0000 Monologue segment where Greg Isenberg introduces the experiment and enters parameters for ChatGPT Deep Research.
Promotion of the Startup Empire Community and Membership 0000 Solo promotional ad read for Startup Empire and walkthrough of Perplexity Deep Research interface.
Reviewing Perplexity's Legal Contract Lifecycle Automation Agent Proposal 0000 Monologue review analyzing Perplexity's legal contract automation agent proposal and growth phases.
Reviewing ChatGPT Deep Research's AI Sales Outreach Assistant Playbook 0000 Monologue evaluation of ChatGPT's AI sales outreach assistant proposal, featuring only a brief one-word interjection from off-camera.
Comparative Evaluation of ChatGPT Pro versus Perplexity Deep Research 0000 Monologue benchmarking speed, cost, and competitive depth between Perplexity and ChatGPT Pro.
Analyzing ChatGPT's Non-Obvious Podcast Advertising Platform Proposal 0000 Monologue segment detailing ChatGPT's podcast ad marketplace proposal followed by concluding takeaways.

Statements from this episode (6)

Insight
Isenberg: AI deep research acts like a six-figure McKinsey junior analyst
“The simplest way to think about it is ChatGPT or Perplexity, when you prompt it, it's going to give you a quick Answer. But deep research, it's almost like a junior analyst, a McKinsey analyst that they would probably pay hundreds of thousand dollars a year …”
Greg Isenberg Feb 19, 2025 ▶ 0:15
Assertion Supported
Isenberg: Perplexity's deep research completes queries faster than ChatGPT's
“Okay, so first things first is that perplexity is faster than ChatGPT. You can see that ChatGPT is about halfway done. Perplexity is done.”
Greg Isenberg Feb 19, 2025 ▶ 9:00
Insight
Isenberg: A proprietary dataset of what works is an AI startup's moat
“If you're building an AI startup, building a unique data set of what works is going to be your moat.”
Greg Isenberg Feb 19, 2025 ▶ 17:15
Opinion
Isenberg: Usage-based pricing tiers are the future of SaaS
“I wish it would have said, like, you should do usage-based tiers, because that's the future of SaaS.”
Greg Isenberg Feb 19, 2025 ▶ 23:51
Insight
Isenberg: ChatGPT Deep Research enables one-shot prompting better than Perplexity
“In this you're going to have to prompt a little bit more. This you're going to one shot it more often. ChatGPT you're going to one shot it more often.”
Greg Isenberg Feb 19, 2025 ▶ 26:34
Opinion
Isenberg: ChatGPT Deep Research goes deeper than Perplexity
“It just goes a little deeper. It goes a little deeper than perplexity.”
Greg Isenberg Feb 19, 2025 ▶ 36:30
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