I tested Gemini vs ChatGPT for 7 days

Are you looking to get in front of 110,000+ AI readers? Sponsor CoolDeep AI Newsletter.

Was this email forwarded to you? Subscribe here!

Today’s Sponsor

1,000+ Proven ChatGPT Prompts That Help You Work 10X Faster

ChatGPT is insanely powerful.

But most people waste 90% of its potential by using it like Google.

These 1,000+ proven ChatGPT prompts fix that and help you work 10X faster.

Sign up for Superhuman AI and get:

• 1,000+ ready-to-use prompts to solve problems in minutes instead of hours—tested & used by 1M+ professionals

• Superhuman AI newsletter (3 min daily) so you keep learning new AI tools & tutorials to stay ahead in your career—the prompts are just the beginning

Claim your free prompts

Task 1: Writing an email newsletter (like this one)

I gave both tools the exact same brief. Same audience, same topic, same tone instructions.

ChatGPT gave me something close to what I wanted in the first try. It followed my tone instructions well. When I said "make it more conversational and less corporate," it actually changed. Noticeably. Not just slightly.

Gemini gave me something more polished but more generic. Like a blog post wearing email clothes. When I pushed it to be more personal, it got better — but I had to push harder.

Winner for writing: ChatGPT. It understands tone instructions better and follows them more precisely.

The exact prompt I used for both:

=================================================

"Act like a newsletter writer who has 100,000+ subscribers in the AI and productivity space.

Write an email newsletter about [topic].

My audience is: [describe your audience]

Tone: conversational, honest, personal — like a smart friend talking to you, not a marketer selling to you

Format: short paragraphs, no fluff, real examples, end with a P.S. that asks for a reply"

=================================================

Try this prompt yourself. Run it on both. You will immediately feel the difference in output quality.

Task 2: Research and finding current information

This one was not even close.

I asked both tools: "What are the most interesting AI tools launched in the last 30 days?"

ChatGPT gave me tools. But several of them were from months ago. It was confident. It was wrong.

Gemini gave me tools that were actually recent. Because Gemini is connected to Google Search in real time. It knew what was happening this week, not just what it learned during training.

I then asked both: "Summarise this YouTube video for me" and shared a link.

ChatGPT said it cannot access YouTube links.

Gemini summarised the entire 40-minute video in under 2 minutes. Pulled out the key ideas, the main arguments, even the timestamps for the important parts.

That alone saved me 40 minutes of watching something I only needed the summary of.

Winner for research: Gemini. It is not even a competition. Real-time information is Gemini's biggest unfair advantage and most people are completely ignoring it.

10 AI Stocks to Lead the Next Decade

AI is fueling the Fourth Industrial Revolution and these 10 stocks are front and center.

One of them makes $40K accelerator chips with a full-stack platform that all but guarantees wide adoption.

Another leads warehouse automation, with a $23B backlog – including all 47 distribution centers of a top U.S. retailer – plus a JV to lease robots to mid-market operators.

From core infrastructure to automation leaders, these companies and other leaders are all in The 10 Best AI Stocks to Own in 2026.

Free today.

Click here to Grab it before the paywall locks.

*Partnered

Task 3: Complex multi-step planning

I gave both tools a big, messy, real task:

"Build me a 30-day content plan for my newsletter. I want 5 emails per week. Each email needs a hook, a main story angle, a key lesson, and a CTA. Make each email different from the last."

ChatGPT built me a structured, detailed plan. It was long. It was organised. The variety across 30 days was genuinely good. When I said "make week 3 more focused on beginner subscribers," it updated just that week without touching the rest.

Gemini also gave me a plan. But it felt more like a template repeated 30 times with different words. Less variety. Less personality. More noise.

Winner for structured, complex output: ChatGPT. When you need something big built carefully, ChatGPT respects your instructions more precisely.

Task 4: Brainstorming and creative ideas

This one surprised me.

I asked both: "Give me 20 newsletter subject lines for an email about AI productivity tools. Make them emotional, curiosity-driven, and feel like they came from a human, not a robot."

Gemini's list had more unexpected angles. It surprised me more. It went places I would not have thought of myself.

ChatGPT's list was strong but more predictable. Like it had seen too many subject line formulas and was sticking to what it knew worked.

Winner for creative brainstorming: Gemini. When you want fresh ideas that push outside your usual thinking, Gemini pulls from a wider, weirder, more interesting place.

Your AI is resolving tickets. Is it keeping customers?

Resolution rates look great. But Gladly's 2026 Customer Expectations Report reveals the metric most CIOs are missing — and what the data says about where AI investments actually translate into retention, not just throughput.

See the findings

So what is the honest truth after 14 days?

Here is the simple breakdown your brain can actually use:

Use Gemini when you need to:

• Research what is happening right now

• Summarise YouTube videos or articles quickly

• Brainstorm fresh, unexpected ideas

• Answer questions that require current data

Use ChatGPT when you need to:

• Write something with a specific tone or voice

• Build structured, complex outputs like plans or frameworks

• Follow detailed multi-step instructions

• Learn something with clear, patient explanation

Nobody tells you this because picking a side gets more clicks. But the people getting real results are not loyal to one tool. They are loyal to the outcome and they pick the right tool for it.

Your assignment today

Pick one task you do every week. Something repetitive. Something that takes you time.

Run it through both Gemini and ChatGPT this week using the same prompt.

Notice which output is closer to what you actually wanted. Notice which one you had to push less. Notice which one saved you more time.

That is your answer. Not mine. Not some YouTuber's. Yours.

Once you know which tool wins for which job in your specific life, you stop wasting time and start stacking outputs.

That is when AI stops being a toy and starts being an actual system.

Talk soon, Stay curious,

CoolDeep AI
Helping you stay ahead with AI & productivity