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AIAP Tool Guides·ChatGPT·15:58

ChatGPT Models, Custom GPTs and Memory: Choosing a Model, Building a "Reel Hook Ninja" GPT, and Managing What It Remembers

Karan Rana Brand/marketing manager, YouTuber, podcaster and course creator ("a non-tech guy"); presents the AI for Marketing, NotebookLM and Manus tool guides
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The short version

  1. Model ladder: GPT-3.5 an entry-level intern, GPT-4 "an MBA grad", GPT-4o ("Omni") a "super intern who sees, hears, speaks and types"; when in doubt, use 4o for writing and analysis (0:01-0:05).
  2. Build a custom GPT in Configure: name, AI-generated icon, description, instructions ("Gen Z social media expert, witty and punchy, three hooks"), starters, knowledge files, recommended model, capabilities (0:04-0:12).
  3. Memory: Settings > Personalization > Memory; test what it remembers, edit or delete any time (0:12-0:15).

At a glance, three clicks deep

Skim here first: the closed row is the glance, open is the study card with the key points and timestamps, and the ↓ link drops to that concept's full write-up below.

01Building a custom GPTA custom GPT bundles instructions, optional knowledge files and chosen capabilities for one recurring use c…›

A custom GPT bundles instructions, optional knowledge files and chosen capabilities for one recurring use case.

Models (0:01-0:05)

Builder (0:05-0:10)

Test (0:10-0:12)

↓ Full write-up of this concept

02Memory: what ChatGPT keeps about youWith "reference saved memories" on, ChatGPT stores facts about you - name, tone, past tasks - and uses them;›

With "reference saved memories" on, ChatGPT stores facts about you - name, tone, past tasks - and uses them; you can review, edit or delete them.

Memory (0:12-0:15)

↓ Full write-up of this concept

The concepts in full

01

Building a custom GPT

how-to

"90 percent of the people ... would not have made one till now."

GPTs > Create > Configure: name "Reel Hook Ninja", AI-generated ninja-with-fish-hook icon, description, instructions (act as a Gen Z social media expert; witty, punchy; give three hooks), recommended model GPT-4o (new at recording), capabilities web search, Canvas and image generation on, code interpreter off. Test: "turn this sentence into three reel hooks: a solo trip to Himachal changed my life" returned "I went to Himachal alone. What happened next changed everything." A viewer persona shows the idea: a résumé GPT that always frames advice for video-editing jobs at startups.

Do it in this order
Why it matters

Stops you re-briefing the same task daily.

This idea elsewhereparallelGemini Gems: the same idea in Google's tool
02

Memory: what ChatGPT keeps about you

how-to

"You are always in control."

Asked "do you remember my name" and "my brand tone", it answered with his name and "casual, upbeat, insightful, sticky storytelling". He admits it can feel "creepingly scary"; the counterpart in the same settings area is custom instructions such as "what should ChatGPT call you".

Do it in this order
Why it matters

Personal answers without repeating yourself - with a privacy trade-off.

Tools referenced

ToolCoverageMomentContext
ChatGPTdemonstrated
Custom GPTsdemonstrated
GPT-4oexplained

Action items

    Resources mentioned

    Resources
    • docLesson page on the platform

    Extraction notes

    This page was built from an auto-generated transcript, which garbles product and people's names. Those were corrected silently in everything above and logged here for transparency. The warnings flag claims that were true on the recording day but change fast.

    Transcript corrections applied

    The transcript saysThe trainer actually means
    gpt 4.0GPT-4o
    real hookreel hook
    reference saved examplesreference saved memories

    True on recording day — verify before relying

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