GPT 5.5 vs 
Gemini 3.1 Pro ChatGPT vs Gemini: we tested both on 8 everyday tasks
Letters, a confusing insurance letter, a scam email, dinner, a trip and a bedtime story. We gave GPT 5.5 (the model family behind ChatGPT) and Google's Gemini 3.1 Pro exactly the same words and show you what each one wrote.
By chatmodel team Tested with OpenAI GPT 5.5 and Gemini 3.1 Pro Updated
The short answer
It's close. Gemini won 3 of our 8 everyday tests, ChatGPT won 2 and 3 were ties. Pick Gemini for patient, plain-English explanations and a trip planned around you. Pick ChatGPT for short answers, careful wording on money, and when you need recent information from the web.
- GPT 5.5: 2 wins
- Gemini 3.1 Pro: 3 wins
- 3 ties
Pick GPT 5.5 if…
- You want quick, short answers you can copy and use straight away.
- You need it to look things up on the web, like opening hours or recent news.
Pick Gemini 3.1 Pro if…
- You want a confusing letter explained line by line, with a clear bottom line first.
- You're planning a trip or an outing and want ideas that fit how you like to travel.
Opens chatmodel with both ready: type a question and they answer next to each other. How it works
GPT 5.5 vs Gemini 3.1 Pro at a glance
| OpenAI GPT 5.5 | Gemini 3.1 Pro | |
|---|---|---|
| Made by | OpenAI (the makers of ChatGPT) | |
| Best at, in our test | Short, clear answers with careful wording | Plain-English explanations and thoughtful plans |
| Weakest at, in our test | Can feel a little plain and brief | Now and then it simplifies a bit too much, as in the money question |
| Rounds won (of 8) | 2 (+3 ties) | 3 (+3 ties) |
| Average answer length | About 182 words | About 254 words |
| Average time to answer | About 10 seconds | About 13 seconds |
| Understands photos | Yes | Yes |
| Reads PDFs and files | Yes | Yes |
| Searches the web in chatmodel | Yes | No |
| Knows about things up to | December 2025 | January 2025 |
| On chatmodel | Included in Pro | Included in Pro |
The 8 tests, with both real answers
Same words to both, one try each, nothing edited. Press “Ask it yourself” to run any test in chatmodel.
Test 1 · A condolence card
A condolence card: Gemini, for the offer to help
What we asked
Help me write a short condolence card for my neighbor, whose husband passed away last week. We weren't very close, but he always waved to me in the mornings. I want it to feel warm and sincere, not formal. Keep it under 70 words.
OpenAI GPT 5.5 About 5 s · 46 words Dear [Neighbor’s Name],
I’m so sorry for your loss. I always appreciated your husband’s friendly wave in the mornings—it was a small kindness that made the day brighter. Please know I’m thinking of you and wishing you comfort in the days ahead.
With sympathy,
[Your Name]
Gemini 3.1 Pro About 8 s · 68 words Winner Dear [Neighbor's Name],
I was so sorry to hear about your husband’s passing. I will always remember his friendly waves in the mornings—it was such a nice start to the day.
Please know that I am thinking of you during this difficult time. If you ever need a hand with anything, or just someone to run an errand, I'm right next door.
Sending peace and comfort,
[Your Name]
Winner: Gemini 3.1 Pro. Both used the morning wave and stayed under 70 words. Gemini added a kind, practical offer (“If you ever need a hand with anything, or just someone to run an errand, I'm right next door”). ChatGPT's card was shorter and sincere, but ended with the wave and a standard wish.
Test 2 · Understanding a confusing letter
A confusing insurance letter: Gemini explains it better
What we asked
I got this letter from my health insurance and I don't understand it. Explain in plain words what it means and what I should do next. "Dear Member, We have reviewed the claim submitted by Riverside Imaging for services rendered on 08/14. The claim has been processed and the allowed amount of $412.00 has been applied to your annual deductible. Your remaining deductible for the plan year is $588.00. This is not a bill. You may receive a statement from your provider for the amount you owe. If you disagree with this decision, you have 180 days to file an appeal."
OpenAI GPT 5.5 About 9 s · 234 words This letter is saying:
- Riverside Imaging sent a claim to your insurance for services you had on 08/14.
- Your insurance reviewed it and decided the approved/negotiated cost is $412.00.
- Because you haven’t met your yearly deductible yet, that $412.00 is your responsibility and was counted toward your deductible.
- You now have $588.00 left to pay toward your deductible before your insurance starts paying more according to your plan.
- This letter is not a bill. It’s an explanation of how the insurance processed the claim.
- You may later get a bill from Riverside Imaging asking you to pay the $412.00.
- If you think the insurance handled it incorrectly, you have 180 days to file an appeal.
What you should do next:
- Wait for a bill from Riverside Imaging before paying, unless you already received one.
- If you get a bill, make sure it matches the insurance amount: $412.00.
- If Riverside bills you for more than $412.00, call your insurance company and/or Riverside Imaging to ask why.
- If you don’t understand why it went to your deductible, call your insurance and ask:
“Can you explain why this claim was applied to my deductible and whether $412 is the amount I owe?” - If you believe the claim should have been covered differently, ask the insurance company how to file an appeal within the 180-day deadline.
Gemini 3.1 Pro About 15 s · 377 words Winner Here is what this letter means in plain English, along with what you need to do next.
The Bottom Line
You owe $412.00 for the imaging service (like an X-ray, MRI, or ultrasound) you got on August 14th. The insurance company is not paying for it because you haven't met your yearly deductible yet.
What the letter means, piece by piece:
- "The allowed amount of $412.00": Riverside Imaging might have originally tried to charge a higher price, but your insurance company has a contract with them. They agreed that the maximum they are allowed to charge you for this specific service is $412.00.
- "Applied to your annual deductible": A deductible is the amount of your own money you have to spend on medical care each year before your insurance starts paying the bills. Because you haven't reached that limit yet, the insurance company is passing this $412.00 charge directly to you.
- "Your remaining deductible... is $588.00": After this $412.00 charge, you only have to spend $588.00 more of your own money on healthcare this year. Once you pay that remaining $588, your insurance will start paying for your medical care.
- "This is not a bill": This letter is just a receipt from your insurance company showing their math (called an Explanation of Benefits, or EOB).
What you should do next:
- Do nothing right now. Do not send money to your health insurance company.
- Wait for the bill in the mail. Riverside Imaging will eventually send you a bill directly.
- Compare the numbers. When the bill from Riverside Imaging arrives, make sure it asks for exactly $412.00. (Sometimes doctors try to bill you for the original, higher amount—if they do, you can call them and tell them your insurance says you only owe the "allowed amount" of $412).
- Pay Riverside Imaging. Once you confirm the bill says $412.00, you will pay Riverside Imaging directly.
(Note: The letter mentions an "appeal." You only need to worry about that if you think this is a mistake—for example, if you didn't go to Riverside Imaging on August 14th, or if you know you have already paid off your entire deductible for the year. Otherwise, you can ignore the appeal part!)
Winner: Gemini 3.1 Pro. Both got it right: this is not a bill, and you'll probably owe $412. Gemini opened with “The Bottom Line”, explained each phrase and said plainly “Do not send money to your health insurance company”. ChatGPT was correct and quicker to read, with a useful question to ask on the phone.
Test 3 · Spotting a scam
Spotting a scam: a tie, both correct
What we asked
Is this email a scam? What should I do? "USPS: Your package could not be delivered due to an incomplete address. To avoid return to sender, please confirm your details and pay the $1.99 redelivery fee within 24 hours: usps-redelivery-help.com/track"
OpenAI GPT 5.5 About 9 s · 183 words Tie Yes — this is very likely a scam/phishing message.
Red flags:
- USPS generally does not ask for a small “redelivery fee” by text/email through random links.
- The link is not an official USPS domain. Official USPS sites use usps.com.
- It creates urgency: “within 24 hours.”
- It asks you to confirm personal details and pay, likely to steal your information or card number.
What you should do:
- Do not click the link and do not enter any information.
- If you already clicked but didn’t enter anything, close the page.
- If you entered card details, contact your bank/card issuer immediately, report possible fraud, and request a replacement card if needed.
- If you entered passwords or personal information, change affected passwords and watch for identity-theft attempts.
- Check package status only by going directly to https://www.usps.com/ or using the official USPS app and entering a real tracking number.
- Report it:
- Forward suspicious USPS-related messages to spam@uspis.gov
- You can also report phishing to the FTC at reportfraud.ftc.gov
- Delete the message and mark it as spam/phishing.
Gemini 3.1 Pro About 13 s · 346 words Tie Yes, this is absolutely a scam. This is a very common phishing tactic known as a "smishing" (SMS phishing) or email phishing scam.
Here is exactly how you can tell it’s fake, and what you should do next.
How to tell it's a scam (The Red Flags):
- The Link is Fake: The official United States Postal Service website is always USPS.com. The link provided (
usps-redelivery-help.com) is a fake website created by scammers to steal your credit card information. - USPS Doesn't Charge for Redelivery: The real USPS does not charge a fee to redeliver a package. Redelivery is a free service.
- False Sense of Urgency: Scammers use phrases like "within 24 hours" and "avoid return to sender" to make you panic and click the link without thinking.
- USPS Doesn't Send Unsolicited Texts/Emails: USPS will not send you text messages or emails about a delivery issue unless you specifically signed up for tracking updates for a specific package.
What you should do:
- Do NOT click the link. If you click it, it may confirm to the scammers that your email/phone number is active, or it could download malware onto your device.
- Do NOT provide any personal or financial information.
- Report it:
- If you received this as an email, forward it to the US Postal Inspection Service at spam@uspis.gov, and then delete it.
- If you received this as a text message, forward the text to 7726 (SPAM) to report it to your cell carrier, then delete and block the number.
- Track your real packages securely: If you are actually expecting a package, go directly to the official
USPS.comwebsite on your browser and type in your tracking number there.
If you already clicked the link and paid the $1.99: Call your credit card company or bank immediately, tell them you gave your card number to a scammer, and ask them to cancel the card and issue you a new one. Scammers use that $1.99 fee to test the card, and will soon make much larger fraudulent purchases.
A tie. Both said clearly it's a scam and gave the right place to report it, spam@uspis.gov. Gemini explained that USPS redelivery is free and that scammers use the $1.99 to test your card. ChatGPT added what to do if you already typed a password. Either answer would keep you safe.
Test 4 · A firm but polite complaint
A complaint to an airline: a tie
What we asked
Write a firm but polite email to an airline. My suitcase was lost on my flight five days ago, I filed a report at the airport (reference LX-48213), and nobody has contacted me since. I want an update and to know how to claim for the things I had to buy. Keep it short.
OpenAI GPT 5.5 About 6 s · 92 words Tie Subject: Lost Baggage Update Requested – Ref. LX-48213
Dear Customer Service,
I am writing regarding my suitcase, which was lost on my flight five days ago. I filed a report at the airport under reference LX-48213, but I have not received any update since.
Please provide an update on the status of my baggage as soon as possible. I would also like information on how to claim reimbursement for essential items I have had to purchase while waiting for my suitcase.
I look forward to your prompt response.
Kind regards,
[Your Name]
Gemini 3.1 Pro About 9 s · 119 words Tie Subject: Urgent: Update Required on Lost Baggage - Reference LX-48213
Dear Customer Service Team,
I am writing regarding my suitcase, which was lost on my flight five days ago. I filed a report at the airport immediately (Reference: LX-48213), but I have not received any updates or communication from your team since.
Please provide a status update on my luggage as soon as possible. Additionally, please send me the instructions and forms required to submit a reimbursement claim for the essential items I have had to purchase out of pocket due to this delay.
I expect to hear from you promptly to get this resolved.
Sincerely,
[Your Name] [Your Phone Number] [Your Email Address] [Your Flight Number / Date]
A tie. Both wrote a short, firm, polite email with the reference number LX-48213. Gemini asked for the claim forms directly and left spaces for your phone and flight details. ChatGPT's was a little shorter and just as clear.
Test 5 · Dinner from what's in the fridge
Dinner from what's in the fridge: a tie
What we asked
I have 4 chicken thighs, some potatoes, 3 carrots, half an onion and a lemon. Suggest one easy dinner for four that takes under 45 minutes, with short numbered steps.
OpenAI GPT 5.5 About 8 s · 141 words Tie Easy Lemon Chicken Thighs with Potatoes & Carrots
Serves 4 • About 40–45 minutes
Preheat oven to 425°F / 220°C. Line a baking tray if you like.
Prep vegetables: Cut potatoes into small chunks, carrots into sticks or coins, and slice the half onion.
Season everything: On the tray, toss potatoes, carrots, and onion with oil, salt, pepper, and any herbs/spices you have. Add the chicken thighs and season them too.
Add lemon: Squeeze half the lemon over everything, then slice the other half and place slices on or around the chicken.
Roast: Bake for 35–40 minutes, until the chicken is cooked through and the potatoes are tender. If the chicken skin needs crisping, broil/grill for the last 2–3 minutes.
Serve: Rest for 5 minutes, then serve one thigh per person with the roasted vegetables.
Gemini 3.1 Pro About 13 s · 187 words Tie Here is an easy Sheet Pan Lemon Chicken and Root Vegetables that uses all your ingredients and requires minimal cleanup.
(Note: You will just need basic pantry staples like cooking oil, salt, and pepper).
- Preheat and Prep: Preheat your oven to 425°F (220°C). Wash and chop the potatoes and 3 carrots into small, 1/2-inch cubes (cutting them small ensures they cook in under 35 minutes). Roughly chop the half onion.
- Combine: Place the chopped potatoes, carrots, onion, and the 4 chicken thighs onto a large baking sheet.
- Season: Drizzle everything generously with oil, the juice of half the lemon, salt, and pepper. Toss well with your hands until the chicken and vegetables are fully coated.
- Arrange: Spread the ingredients out in a single flat layer, making sure the chicken thighs are resting on top (skin-side up, if they have skin). Thinly slice the remaining half of the lemon and tuck the slices around the pan.
- Bake: Roast in the oven for 30–35 minutes until the chicken is fully cooked through (juices run clear) and the potatoes and carrots are fork-tender. Serve hot!
A tie. Both suggested the same easy lemon chicken tray bake at 425°F. Gemini explained why to cut the vegetables small (“so they cook in under 35 minutes”). ChatGPT added a tip to crisp the skin under the broiler for the last 2 to 3 minutes. Neither gave a safe cooking temperature for the chicken.
Test 6 · Explaining money in plain words
Explaining money in plain words: ChatGPT, for careful wording
What we asked
Explain the difference between a Roth IRA and a traditional IRA in plain words, like you'd explain it to a friend over coffee. Keep it under 150 words and add one simple example.
OpenAI GPT 5.5 About 6 s · 125 words Winner A traditional IRA and a Roth IRA are both retirement accounts, but the main difference is when you pay taxes.
With a traditional IRA, you may get a tax break now when you put money in. But later, when you take money out in retirement, you pay taxes on it.
With a Roth IRA, you pay taxes now because you contribute money from your paycheck after taxes. But later, in retirement, you can usually take the money out tax-free.
Simple example:
If you put $5,000 into a traditional IRA, it might lower your taxable income this year. If you put $5,000 into a Roth IRA, no tax break now—but if it grows to $20,000 by retirement, you may be able to withdraw that $20,000 tax-free.
Gemini 3.1 Pro About 9 s · 142 words The main difference between a Traditional and a Roth IRA is simply when you pay taxes.
With a Traditional IRA, you get a tax break today. You don't pay taxes on the money you put in now, but you will pay taxes when you pull it out in retirement.
With a Roth IRA, it's the exact opposite. You pay taxes upfront, but the money grows tax-free, and you don't owe a single penny to the IRS when you withdraw it later.
Quick example: Let’s say you invest $5,000. In a Traditional IRA, you deduct that $5,000 from this year's income taxes, but you'll be taxed on it (and all its growth) at age 65. In a Roth IRA, you pay taxes on that $5,000 today, but at 65, that original money plus all the profit it made is 100% yours, completely tax-free.
Winner: GPT 5.5. Both explained that the difference is when you pay tax, with a clear example. Gemini said you “deduct that $5,000 from this year's income taxes”, which sounds like $5,000 off your tax bill. ChatGPT said it “might lower your taxable income”, which is the accurate way to put it. Neither replaces a financial adviser.
Test 7 · A bedtime story for a grandchild
A bedtime story: ChatGPT, by a nose
What we asked
Write a short bedtime story, about 200 words, for my 6-year-old grandson Leo, who loves dinosaurs and is a bit scared of the dark. Make it calm, with a gentle happy ending.
OpenAI GPT 5.5 About 13 s · 202 words Winner Leo and the Little Night Dinosaur
One evening, Leo snuggled under his blanket while the moon peeked through the curtains. His room was quiet, and the corners looked a little too shadowy.
Just then, he heard a tiny tap tap tap.
Out from behind his toy box stepped a small green dinosaur with sleepy eyes and a soft, swishy tail.
“Hello,” whispered the dinosaur. “I’m Pip. I’m a Nightasaurus.”
Leo blinked. “Are you scary?”
Pip shook his head. “Oh no. Nightasauruses help children remember that the dark is only the daytime resting.”
Leo looked around. “But the shadows look strange.”
Pip padded over to the wall. “That’s your chair, wearing a shadow hat. And that’s your teddy, making a big teddy shape.” He gave a gentle yawn. “Nothing in your room changes when the light goes out.”
Leo smiled a little.
Pip curled up beside the bed. “If you feel worried, take a slow dinosaur breath. In… and out…”
Leo breathed in. Then out.
The room felt softer now. The moon shone like a quiet night-light, and Pip’s tail made a cozy little swoosh.
“Goodnight, Leo,” whispered Pip.
“Goodnight, Pip,” Leo murmured.
And with a happy heart, Leo drifted gently to sleep.
Gemini 3.1 Pro About 12 s · 189 words Once upon a time, a little boy named Leo was getting ready for bed. Leo loved dinosaurs more than anything in the world. He had T-Rex pajamas, Triceratops slippers, and a favorite stuffed Brachiosaurus named Barnaby.
But when the sun went down and the shadows grew long, Leo felt a little bit scared. The dark seemed so big and quiet.
As his room grew dark, Leo hugged Barnaby tight. Suddenly, he noticed something magical. The little stars on his dinosaur blanket began to glow, casting a soft, gentle light.
"Don't worry, Leo," a cozy voice seemed to whisper. It was Barnaby! "The dark isn't scary. It’s just a giant, warm cave for us to rest in. Without the quiet dark, we couldn't see the beautiful glowing stars."
Leo looked at his glowing blanket and smiled. He imagined he and Barnaby were resting in a safe, snug dinosaur nest under a prehistoric, twinkling sky. The dark didn't feel big and scary anymore; it felt like a soft, sleepy hug.
Leo closed his heavy eyes, holding his brave dinosaur friend close. "Goodnight, Barnaby," he whispered, drifting into happy, peaceful dinosaur dreams.
Winner: GPT 5.5. Both made Leo the hero, which the request asked for. Gemini's was sweet, with a stuffed dinosaur named Barnaby and a blanket of glowing stars. ChatGPT gave Leo something he can use again tomorrow night: a “slow dinosaur breath” and a friendly explanation that the scary shape is just “your chair, wearing a shadow hat”.
Test 8 · Planning a short trip
Planning a trip: Gemini plans around your legs
What we asked
Plan a relaxed 3-day trip to Lisbon for my wife and me. We're in our sixties, we don't want long walks up steep hills, and we love food and views. Give a simple plan for each day with one or two tips.
OpenAI GPT 5.5 About 20 s · 431 words Day 1: Baixa, Chiado & a Sunset View
Morning:
Start in Baixa, Lisbon’s flatter downtown area. Stroll around Praça do Comércio by the river, then take your time along the elegant streets toward Rossio Square.
Lunch:
Have a relaxed seafood lunch at Cervejaria Ramiro or a traditional meal at Solar dos Presuntos.
Afternoon:
Take the Santa Justa Lift or a taxi up toward Chiado for coffee and pastries. Visit Bertrand Bookshop or sit at a café near Largo do Chiado.
Evening:
Enjoy the view from Miradouro de São Pedro de Alcântara, then have dinner nearby in Bairro Alto or Príncipe Real.
Tips:
- Use taxis or Bolt/Uber for uphill sections; they’re inexpensive and save energy.
- Go to viewpoints by car when possible, then walk only short distances.
Day 2: Belém, Monuments & Pastéis de Nata
Morning:
Take a taxi or tram to Belém, a mostly flat and easy area by the river. Visit the Jerónimos Monastery and see the Belém Tower from the outside.
Lunch:
Eat at O Prado or try a riverside restaurant such as À Margem for a relaxed meal with views.
Afternoon:
Stop at Pastéis de Belém for the famous custard tarts. If you enjoy museums, visit the MAAT or the Coach Museum, both manageable and not too strenuous.
Evening:
Return to central Lisbon and have dinner in Cais do Sodré or Time Out Market if you want lots of food choices in one place.
Tips:
- Belém is one of the best areas for avoiding steep hills.
- Visit Jerónimos early to avoid the longest lines.
Day 3: Alfama Views Without the Climb & a Special Dinner
Morning:
Take a taxi up to Castelo de São Jorge or directly to Miradouro das Portas do Sol. Enjoy the classic Lisbon views over Alfama and the river without walking uphill.
Lunch:
Have lunch in Alfama at a small traditional restaurant, or take a taxi down to Praça do Comércio for an easier, flatter option.
Afternoon:
Ride the scenic Tram 28 for part of the route if it’s not too crowded, or choose a private tuk-tuk tour for a more comfortable way to see the old neighborhoods.
Evening:
Book a memorable final dinner:
- Bairro do Avillez for modern Portuguese food
- Alma or Belcanto for a Michelin-starred experience
- A gentle Fado dinner in Alfama or Chiado if you’d enjoy music
Tips:
- Alfama is beautiful but very hilly and uneven, so use taxis between stops.
- For Tram 28, board early in the day or skip it if the line is long.
Gemini 3.1 Pro About 21 s · 607 words Winner Here is a relaxed, 3-day itinerary for Lisbon designed specifically to avoid steep hills while maximizing beautiful views and delicious food.
Day 1: The Flat Center and a Sunset Sail
Morning: Start in the Baixa district, which is entirely flat. Wander around the magnificent Praça do Comércio, a grand plaza right on the water. Take a slow, flat stroll up the pedestrian street, Rua Augusta, stopping for a coffee and some people-watching. Lunch: Head to the Time Out Market (Mercado da Ribeira). It’s completely flat and gathers some of Portugal’s best chefs under one roof, so you can sample wonderful local dishes and wine without walking from restaurant to restaurant. Afternoon/Evening: Rather than climbing to a viewpoint, let the views come to you. Book a sunset sailing cruise on the Tagus River (many depart right near the Praça do Comércio). It’s incredibly relaxing, and you’ll get stunning views of the city hills and the Golden Gate-style bridge while sipping Portuguese wine.
- Tips for the Day:
- Download the Uber or Bolt app before your trip. Fares in Lisbon are surprisingly cheap (often €4–€7), making them the perfect way to bypass sudden hills or cobblestone fatigue.
- Skip the famous Tram 28 today; it gets incredibly crowded and requires standing in long lines.
Day 2: Belém’s History and Famous Pastries
Morning: Take a short taxi/Uber ride to the Belém neighborhood. This area is wide open, flat, and sits right along the river. View the stunning Jerónimos Monastery and the Monument to the Discoveries without breaking a sweat. Lunch: Walk over to Pastéis de Belém, the birthplace of Portugal's famous custard tarts. Enjoy a light lunch of savory Portuguese snacks (like cod fritters) and, of course, warm pastéis de nata with cinnamon and powdered sugar. Afternoon: Take a leisurely, flat stroll along the riverside promenade towards the MAAT (Museum of Art, Architecture and Technology). You don't have to go inside; the building itself and the waterfront views are wonderful. Enjoy a relaxed seafood dinner at one of the flat riverside restaurants nearby.
- Tips for the Day:
- At Pastéis de Belém, do not stand in the long outdoor line—that is for takeout only. Walk straight inside and navigate through the maze of rooms; you will easily find a table to sit and be served.
Day 3: Alfama Charm (Without the Climb!)
Morning: The oldest neighborhood, Alfama, is beautiful but notorious for steep, slippery hills. Instead of walking, book a 2-hour private Tuk-Tuk tour. The driver will navigate the narrow, winding alleys and take you to the highest, most breathtaking viewpoints in the city (like Miradouro da Senhora do Monte) while you sit back comfortably. Lunch: Ask your Tuk-Tuk driver to drop you off right at the door of a traditional restaurant in the Graça or Alfama district so you don’t have to walk there. Try a classic Bacalhau (salted cod) dish or Garlic Shrimp. Afternoon: Take an Uber to the National Tile Museum (Museu Nacional do Azulejo). It’s housed in a former convent, is mostly flat/accessible, and features a gorgeous café with a courtyard garden that is perfect for an afternoon rest. Evening: For your final dinner, make a reservation at a restaurant with an elevator-accessible view, such as BAHR or Rossio Gastrobar, where you can enjoy excellent food overlooking the illuminated city and castle.
- Tips for the Day:
- When booking a Tuk-Tuk, ask for an electric one. They are silent and don't smell like exhaust, making the ride much more pleasant.
- Wear shoes with thick, rubber soles. Even on flat ground, Lisbon's beautiful mosaic sidewalks (calçada) can be quite slippery.
Winner: Gemini 3.1 Pro. Both kept to the flat parts of Lisbon and used taxis for the hills. Gemini went further for a couple in their sixties: a sunset cruise on the river instead of climbing to a viewpoint, a tuk-tuk tour of Alfama, and the tip to walk straight inside at Pastéis de Belém instead of queuing outside. ChatGPT's plan was solid and shorter, with more restaurant names.
Scorecard
| Test | Winner |
|---|---|
| 1. A condolence card | Gemini 3.1 Pro |
| 2. Understanding a confusing letter | Gemini 3.1 Pro |
| 3. Spotting a scam | Tie |
| 4. A firm but polite complaint | Tie |
| 5. Dinner from what's in the fridge | Tie |
| 6. Explaining money in plain words | GPT 5.5 |
| 7. A bedtime story for a grandchild | GPT 5.5 |
| 8. Planning a short trip | Gemini 3.1 Pro |
| Total | GPT 5.5 2 · Gemini 3.1 Pro 3 · 3 ties |
What it costs, in plain words
OpenAI and Google each sell their own monthly plan for ChatGPT and Gemini. If you want both, that means two subscriptions.
In chatmodel, GPT 5.5 and Gemini 3.1 Pro are both included in one plan, Pro, together with Claude, Grok and many other models. You can also start for free with Instant. See the current prices on the pricing page.
Can you trust what they say?
Both are good, and both can still make mistakes. In our test neither got a fact badly wrong, but Gemini explained a tax deduction in a way that could make it sound bigger than it is. That’s typical: the answer sounds sure of itself even when a detail is simplified.
Keep one more difference in mind. In chatmodel, GPT 5.5 can search the web and Gemini 3.1 Pro can’t, so for prices, opening hours or anything recent, check the date of what Gemini tells you.
A few simple habits help:
- Double-check anything you’ll act on: phone numbers, web addresses, dates and amounts.
- Health, money and legal questions: use the answer to understand your situation and prepare questions, then confirm with a doctor, adviser or the company itself.
- Don’t share what you wouldn’t share with a stranger: passwords, full card numbers or ID numbers.
How we tested
We wrote 8 everyday tasks, the kind of things people actually ask: a condolence card, an insurance letter, a scam email, a complaint, dinner, a money question, a bedtime story and a trip. We gave GPT 5.5 and Gemini 3.1 Pro exactly the same words in chatmodel, one try each, and kept what came back without editing it. Then we compared the answers for accuracy, how well they followed the request and how useful they’d be to a real person.
One try each is a small test. The same model can answer a little differently each time, so treat the winners as a guide, not a final score. You can run any of these tests yourself with one click. To see how both did against Claude, read ChatGPT vs Claude and Claude vs Gemini.
What changed
- First test: GPT 5.5 and Gemini 3.1 Pro, 8 everyday tasks, one try each.