I Analyzed 100 ChatGPT Emails. Here's What Made Them Sound Robotic.
An experiment analyzing professional emails reveals the patterns that instantly expose AI-generated content.
Last month, I conducted an experiment. I collected 100 emails that professionals admitted were written with ChatGPT's help, and I analyzed every single one for patterns that screamed "AI wrote this."
The results were eye-opening—and slightly embarrassing for anyone who thought their AI-assisted emails were passing as human.
The Smoking Guns
1. The Overly Enthusiastic Opening (87% of emails)
Almost nine out of ten ChatGPT emails started with phrases like:
- "I hope this email finds you well!"
- "I wanted to reach out regarding..."
- "I'm excited to share..."
Real humans rarely open emails this way. We usually just... start.
2. The Hedging Epidemic (73% of emails)
ChatGPT loves to hedge its statements:
- "It's important to note that..."
- "It's worth mentioning that..."
- "As you may know..."
These phrases add nothing. They're verbal throat-clearing that pads word count without adding meaning.
3. The Robotic Sign-Off (91% of emails)
The biggest giveaway? The closing. An astounding 91% of emails ended with some variation of:
- "Please don't hesitate to reach out if you have any questions."
- "I look forward to hearing from you."
- "Let me know if you need anything else."
These aren't wrong—they're just obviously templated.
4. The Perfect Paragraph Problem (68% of emails)
ChatGPT produces unnaturally uniform paragraphs. Each point gets exactly 2-3 sentences. Each paragraph is roughly the same length. Real human writing is messier, more varied, more human.
5. The Emoji Injection (5% of emails)
When asked to be "friendly," ChatGPT sprinkles in emojis like digital confetti 🎉. But the placement is always slightly off—too frequent, too random, or just... weird.
The Fix
The solution isn't to stop using AI—it's to clean up after it.
Tools like DeGPT automatically strip these AI artifacts:
- Removes boilerplate openings and closings
- Eliminates hedging phrases
- Normalizes the robotic punctuation
- Keeps your actual message intact
The goal is to use AI for the thinking, but make the output sound like you.
The Bottom Line
Your colleagues, clients, and bosses are getting better at spotting AI-written content. The tells are subtle but consistent.
The professionals who'll thrive aren't the ones avoiding AI—they're the ones who know how to make AI output invisible.
Stop copying and pasting raw ChatGPT output. Start cleaning it first.
Try DeGPT free →