AI, API keys and Grok: the short version
Total read: about 8 minutes. Videos are extra.
1. What an AI model is
A model is a program trained on a huge pile of text. You type, it predicts a good answer.
It doesn't live on your laptop. Grok sends what you type to xAI's servers and streams the answer back. Like Netflix: the movie plays somewhere else. That's why your low-RAM laptop is fine for Grok.
Remember: the brain is on their server. Your laptop is the screen.
2. Chat vs agent
A chat answers. You copy, paste, do the work yourself.
An agent in the Terminal can act. It reads your files, runs commands, writes notes, calls other services. You give it a job, it does the steps.
That's what Grok is on your laptop. An agent, not a chat window.
Rule: tell it the outcome you want, then check what it did.
3. API keys
An API key is a password one program uses to talk to another service. It also bills you or the company.
Example: our Instantly key lets Grok read prospect replies. Anyone holding that key can read them too.
- Never paste a key into a chat, a note, an email or a text.
- Keys live in your Mac's Keychain or an environment variable. Fake example:
INSTANTLY_API_KEY=inst-XXXX. - Leaked one by accident? Tell me. We delete it and make a new one. That's called rotating.
When you have a key, tell Grok: “I have an API key for Instantly. Help me store it safely without showing it.”
4. How Grok works for you
Grok runs in your Terminal. Your Little Brain folder is its memory. Anything saved there, it can find next time.
Tell it once: “Always work in my Little Brain so everything gets saved there.” Then it does.
Workflows are several agents working at the same time. One agent transcribing 18 videos takes forever. Sixteen agents in parallel, it's done fast.
For any big repeat job, add “use workflows” to your ask.
5. How the reply flow works
- Instantly sends the cold emails.
- A prospect replies.
- Grok watches Instantly through the API.
- Grok pings your M3 inbox: “someone raised their hand.”
- You read it. Human check. Anyone who says stop or anything weird gets no link.
- Real interest? Send the booking link.
You don't live in the Instantly dashboard. Grok does.
First week: laptop notifications only. Then we decide if you need phone alerts.
Try this today (35 min)
Videos worth your time
Start at the top. Stop whenever.
- #1What are AI Agents?IBM Technology · 12 minWhat makes an agent different from a chat. Plain and clear.
- #2AI Agents, Clearly ExplainedJeff Su · 10 minChat vs workflow vs agent. Same idea, different angle.
- #3What Are API Keys? Explained in 2 MinutesQuikTut · 2 minAPI keys and how to keep yours safe. Fast.
- #4What Is an API Key?Ghost Python Academy · 4 minSame idea, a bit deeper on best practices.
- #5Ultimate GROK Tutorial (Grok 4.3 for Beginners in 2026)AI Master · 32 minTour of what Grok can do. Skim it.
- #6Grok CLI Installation TutorialBaner Code · 6 minGrok in the Terminal, the way you run it.
- #7How I use LLMsAndrej Karpathy · 2 hr 11 minThe long one. Watch it in chunks, on a walk.
What's working in cold email right now
Answer every warm reply the same day, read it yourself first, and get the good ones on a 15-min call.
Whole part: about 25 minutes, plus videos if you want them. Window this time: Sept 3 to Oct 3, 2026.
The one thing
Speed wins. Instantly's own course from Oct 2 says answer in under 5 minutes if you can. Same day at worst.
You're not writing campaigns. Jason and the automation send them. You catch what comes back.
What's working now (as of 2026-10-03)
- Fast replies book calls. Instantly calls speed to lead the number one priority, with under 5 minutes as the target. Slow answers lose people who were ready.
- Short beats clever. First emails that run 50 to 125 words get 2.4x the replies of anything over 200. Your replies should be even shorter.
- No links until they ask. A link from a stranger looks like phishing to the spam filter and to the person. The booking link only goes out after they say yes to a call.
- Small sends per inbox, warmup never stops. Instantly caps it at 30 a day per inbox after 2 to 4 weeks of warmup. We run 10 a day now, maybe 15 to 20 soon. Warmup keeps running underneath.
- Clean lists, few bounces. Verify every list before it goes out and keep bounces under 2%. That's why our 75K list became about 7K. Bounces burn the domains.
The numbers, so you know what normal looks like
- Average reply rate: about 3.4%. Top 10% of senders: 10.7% or more.
- 58% of replies come off the first email. The other 42% come from follow-ups.
- We send three touches and stop. Any reply kills the rest of the sequence for that person.
- Most replies won't be yeses. That's normal, and none of it is personal.
Your reply playbook
Read every reply yourself before anything goes out. If it's odd, don't send a link. Text Jason.
1. Stop, unsubscribe, “remove me,” out of office
- Add them to the do-not-email list today. Don't reply.
- Out of office: let the sequence handle it. No reply from you.
- Mean “stop” replies: don't argue. Don't explain. Remove them and move on.
2. Soft yes (“maybe,” “tell me more,” “what is this?”)
- One short question back. That's it. Something like: “Glad it landed. Quick one so I point you the right way: what's costing you the most calls right now?”
- No link yet. No pitch. Let them tell you the problem.
3. A real question (“how much?” “do you do X?”)
- Answer it straight in a line or two. Never put a price in an email. “Depends on what we find, and it's easier to show you than type it. Got 15 minutes this week?”
4. Wants a call
- Send the booking link today, in the same thread. Short: “Here's my calendar, grab any 15-min slot that works: the booking link (coming this week). Talk soon.”
- Then text Jason: company, who, and what they said.
5. Angry, legal-sounding, or you're not sure
- Don't reply. Text Jason with a screenshot. He handles it.
What not to do
- Don't argue with someone who's annoyed. Remove them, done.
- Don't send a link to anyone who hasn't asked for a call.
- Don't write long replies. If it scrolls, cut it in half.
- Don't promise prices, dates, or results. That's for the call.
- Don't panic over a slow week. Cold email needs volume and time.
How the sending side works, in 60 seconds
- We buy lookalike domains, never our main one, and set up a few inboxes on each.
- Each inbox warms up for weeks before it sends a real email. Warmup keeps running after.
- Lists get verified so we don't bounce.
- Each inbox sends a small number a day, with mixed copy so no two inboxes look identical.
- Replies route to you. You read them, answer, book.
Your warm network counts too
Know someone who runs a business, or knows someone who does? That's a warm lead. Those close fastest.
Same move: short message, ask what's costing them calls, book the 15 minutes. Low pressure.
Videos (pick two, ~30 min)
Verified 2026-10-03: title and channel checked against each link.
- #1 · START HEREHow to Grow Your Business So Fast It Feels Like CHEATING (FREE COURSE)Instantly · Oct 2 2026 · 1 hr 56 minLong. Skip to the reply and booking part at 1:08:56.
- #211 things you should NEVER do after launching a cold email campaignMailscale · Mar 2026 · 8 minPoints 7 and 9 are yours (angry replies, no links).
- #3Getting Clients In 2026 Is Simple, Actually (FREE COURSE)Instantly · Sept 11 2026 · 31 min
- #4Masterclass: How to win with cold outreach in 2026Instantly · 59 minThe ~1-hour master class.
- #5Beginners Guide to Cold Email Marketing in 2026Instantly · Aug 27 2026 · 1 hr 32 minLonger and newer.
- #6 · OPTIONALThe Only Email Deliverability Video You Need in 2026Mailscale · 11 minSending side, optional.
Mailscale says it sends over 100 million cold emails a month, so it's probably the “100M cold emails” channel. Ask Jason to confirm.