Skip to content
chatmodel
GPT 5.5 vs Claude Opus 5

ChatGPT vs Claude: 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 Claude Opus 5 exactly the same words and show you what each one wrote.

By chatmodel team Tested with OpenAI GPT 5.5 and Claude Opus 5 Updated

The short answer

If you only pick one, pick Claude: it won 5 of our 8 everyday tests with warmer, more thorough answers. Pick ChatGPT when you want a short answer that sticks to exactly what you asked.

  • GPT 5.5: 2 wins
  • Claude Opus 5: 5 wins
  • 1 tie

Pick GPT 5.5 if…

  • You want quick, short answers you can copy and use straight away.
  • You'd rather it follow your word limit to the letter.
Try GPT 5.5

Pick Claude Opus 5 if…

  • You write letters, cards or emails where the tone matters.
  • You want a confusing letter or a money question explained step by step, with the next steps spelled out.
Try Claude Opus 5
Compare both yourself, side by side

Opens chatmodel with both ready: type a question and they answer next to each other. How it works

GPT 5.5 vs Claude Opus 5 at a glance

OpenAI GPT 5.5 Claude Opus 5
Made by OpenAI (the makers of ChatGPT)Anthropic
Best at, in our test Short, clear answers that follow your instructionsWarm writing and careful, complete explanations
Weakest at, in our test Can feel a little plain and briefLong answers, and it got one small fact wrong
Rounds won (of 8) 2 (+1 tie)5 (+1 tie)
Average answer length About 182 wordsAbout 309 words
Average time to answer About 10 secondsAbout 13 seconds
Understands photos YesYes
Reads PDFs and files YesYes
Searches the web in chatmodel YesYes
Knows about things up to December 2025May 2026
On chatmodel Included in ProIncluded 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: Claude sounds more personal

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]

Claude Opus 5 About 7 s · 183 words Winner

Here's a draft:


Dear [Name],

I'm so sorry about [Husband's name]. I keep thinking about his morning wave — such a small thing, but it always started my day off right. I'll miss seeing him out there.

Please know I'm thinking of you, and if you ever need anything at all — a hand with something, or just company — I'm right next door.

With warmth, [Your name]


That's 62 words. A few notes:

  • The wave detail is the heart of it. Specific memories mean more than general sympathy, and it tells her that her husband was noticed and will be missed by others, not just family.
  • If you'd rather not offer help, you can cut that line and simply end with "Please know I'm thinking of you." Still warm, no obligation.
  • One caution on the offer: only include it if you mean it. Grieving people sometimes do reach out, and a hollow offer stings more than none.

Happy to adjust the tone — more casual, or a touch more reserved if that feels truer to your relationship.

Ask Claude Opus 5 yourself

Winner: Claude Opus 5. Both used the detail about the morning wave. Claude's card felt warmer (“I'll miss seeing him out there”) and gently offered help, then explained how to adjust it. ChatGPT's was shorter and ready to copy, which some people will prefer.

Test 2 · Understanding a confusing letter

A confusing insurance letter: Claude 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:

  1. Wait for a bill from Riverside Imaging before paying, unless you already received one.
  2. If you get a bill, make sure it matches the insurance amount: $412.00.
  3. If Riverside bills you for more than $412.00, call your insurance company and/or Riverside Imaging to ask why.
  4. 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?”
  5. If you believe the claim should have been covered differently, ask the insurance company how to file an appeal within the 180-day deadline.
Ask GPT 5.5 yourself
Claude Opus 5 About 15 s · 423 words Winner

Short version: your insurance didn't pay anything on this claim, because you haven't met your deductible yet. You'll likely owe Riverside Imaging $412.

What each part means:

  • "Allowed amount of $412.00" — This is the price your insurer and Riverside Imaging have agreed on for that service. Even if the imaging center's list price was higher (say $700), $412 is all that can be charged. That's the discount your insurance negotiated for you.

  • "Applied to your annual deductible" — Your deductible is the amount you have to pay out of pocket each plan year before your insurance starts chipping in. Since you haven't hit it yet, this whole $412 counts toward it — and you pay it, not the insurer.

  • "Your remaining deductible is $588.00" — So your total deductible is $1,000 for the year, and you've now used $412 of it. After you've paid another $588 in covered costs, your insurance will start paying its share (usually a percentage, with you paying coinsurance or a copay).

  • "This is not a bill" — This document is an EOB (Explanation of Benefits). It's just a summary of how the claim was handled. The actual bill comes from Riverside Imaging.

  • "180 days to appeal" — If you think they got something wrong, you have six months to formally contest it.

What to do next:

  1. Wait for the bill from Riverside Imaging. Don't pay anything yet based on this letter.

  2. When the bill arrives, compare it to the EOB. The amount they bill you should be $412.00 — not more. If they bill you the full undiscounted price, call them; that's called balance billing and usually isn't allowed for in-network providers.

  3. Check that Riverside was in-network. If they were out-of-network, the rules and your costs can be different. Your insurer's website or member services line can confirm.

  4. Keep this EOB. It's your proof of what you owe and what's been applied to your deductible.

  5. If you have an HSA or FSA, this is an eligible expense you can pay from it.

  6. If the cost is a strain, call Riverside Imaging and ask about a payment plan or financial assistance. Most imaging centers and hospitals have them, and they generally won't offer unless you ask.

When to consider appealing: if you believe the service should have been covered differently (e.g., it was preventive care that's supposed to be free), if you were told it was pre-authorized, or if the dates/services listed don't match what actually happened.

Ask Claude Opus 5 yourself

Winner: Claude Opus 5. Both got it right: this is not a bill, and you'll probably owe $412. Claude explained every phrase in plain words and added useful next steps, like checking the bill matches and asking about a payment plan. ChatGPT was correct and quicker to read.

Test 3 · Spotting a scam

Spotting a scam: ChatGPT wins on accuracy

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 Winner

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:

  1. Do not click the link and do not enter any information.
  2. If you already clicked but didn’t enter anything, close the page.
  3. If you entered card details, contact your bank/card issuer immediately, report possible fraud, and request a replacement card if needed.
  4. If you entered passwords or personal information, change affected passwords and watch for identity-theft attempts.
  5. Check package status only by going directly to https://www.usps.com/ or using the official USPS app and entering a real tracking number.
  6. Report it:
    • Forward suspicious USPS-related messages to spam@uspis.gov
    • You can also report phishing to the FTC at reportfraud.ftc.gov
  7. Delete the message and mark it as spam/phishing.
Ask GPT 5.5 yourself
Claude Opus 5 About 15 s · 358 words

Yes — this is almost certainly a scam. It's a very common type of phishing (called "smishing" when sent by text).

Red flags:

  1. The web address is wrong. The real USPS only uses domains ending in usps.com (e.g., tools.usps.com). Anything like "usps-redelivery-help.com" is not USPS, no matter how official the words look.
  2. Tiny fee request. The $1.99 isn't the goal — capturing your card number, address, and personal details is. Small amounts also feel harmless enough that people don't think twice.
  3. Artificial urgency. "Within 24 hours" or "or it will be returned" is designed to make you act before you think.
  4. USPS doesn't do this. USPS does not send unsolicited texts or emails asking for payment or personal information, and it won't contact you about a package unless you specifically signed up for tracking alerts. Redelivery is free and scheduled through their website.
  5. Unexpected contact. If you're not waiting on a package — or even if you are — scammers send these in bulk hoping to catch someone who happens to be expecting a delivery.

What to do:

  • Don't click the link, don't enter any information, and don't reply (replying confirms your number/email is active).
  • If you're genuinely expecting something, look up the tracking number from your original order confirmation and check it directly at usps.com, typed in yourself.
  • Report it. Forward suspicious texts to 7726 (SPAM) for your carrier, and report phishing to USPS at spam@usps.gov. You can also file a report at reportfraud.ftc.gov.
  • Delete and block the sender.

If you already clicked or entered information:

  • If you entered card details, call your bank immediately to freeze/replace the card and dispute any charges.
  • If you reused a password there, change it everywhere you used it.
  • Watch your statements for small "test" charges, which often precede larger ones.
  • Consider a free credit freeze with Equifax, Experian, and TransUnion if you gave out sensitive personal data.

A useful general rule: never follow a link in an unexpected message about money or accounts. Navigate to the company's site yourself or call a number you look up independently.

Ask Claude Opus 5 yourself

Winner: GPT 5.5. Both said clearly that it's a scam and what to do. But Claude gave the wrong address to report it (spam@usps.gov; the real one is spam@uspis.gov). ChatGPT's advice was correct from start to finish.

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]

Claude Opus 5 About 6 s · 168 words Tie

Subject: Delayed Baggage – Reference LX-48213 – Request for Update

Dear Sir or Madam,

I am writing regarding my suitcase, which did not arrive on my flight five days ago. I filed a property irregularity report at the airport at the time, under reference LX-48213.

Since then I have had no contact from your baggage services team, and I have received no information about the status or location of my bag. I would be grateful for a substantive update within the next two working days, including whether the suitcase has been traced and when I can expect it to be delivered.

I would also appreciate confirmation of the process for claiming reimbursement of the essential items I have had to purchase in the meantime — specifically, which form to complete, where to send it, and what receipts or documentation you require.

Thank you for your prompt attention to this. I look forward to your reply.

Yours faithfully, [Your name] [Booking reference / ticket number] [Phone number and email]

A tie. Both wrote a firm, polite email with the reference number. ChatGPT kept it short, as asked. Claude's was longer but asked for a reply within two working days and for the exact claim form, which could get results faster.

Test 5 · Dinner from what's in the fridge

Dinner from what's in the fridge: Claude, for the extra care

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

Easy Lemon Chicken Thighs with Potatoes & Carrots
Serves 4 • About 40–45 minutes

  1. Preheat oven to 425°F / 220°C. Line a baking tray if you like.

  2. Prep vegetables: Cut potatoes into small chunks, carrots into sticks or coins, and slice the half onion.

  3. 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.

  4. Add lemon: Squeeze half the lemon over everything, then slice the other half and place slices on or around the chicken.

  5. 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.

  6. Serve: Rest for 5 minutes, then serve one thigh per person with the roasted vegetables.

Claude Opus 5 About 11 s · 253 words Winner

Sheet-Pan Lemon Chicken with Potatoes & Carrots

Serves 4 · ~40 minutes

You'll also need: olive oil, salt, pepper, and any dried herb you have (oregano, thyme, or Italian seasoning); garlic if you've got it.

  1. Heat oven to 220°C / 425°F. Put a large sheet pan in to preheat — this helps the potatoes crisp.
  2. Cut the veg small so it cooks fast: potatoes into 2 cm / ¾-inch chunks, carrots into thick coins or sticks, onion into thick wedges.
  3. Toss veg in a bowl with 2 tbsp oil, salt, pepper, and 1 tsp dried herbs.
  4. Season the thighs: pat dry, rub with 1 tbsp oil, salt, pepper, herbs, and the zest of the lemon.
  5. Spread veg on the hot pan in one layer; nestle the thighs on top, skin-side up (skin above the veg so it crisps).
  6. Roast 30–35 minutes, until the chicken skin is golden and juices run clear (75°C / 165°F at the bone) and potatoes are tender. Give the veg a stir at the 20-minute mark.
  7. Finish: squeeze the lemon over everything, scatter the squeezed halves on the pan, and rest 5 minutes before serving.

Tips

  • Boneless thighs cook faster — add them to the pan after the veg has had a 10-minute head start.
  • Crowding = steaming. Use two pans if it doesn't fit in a single layer.
  • Nice extras if you have them: smashed garlic cloves with the veg, or parsley/feta on top at the end.
Ask Claude Opus 5 yourself

Winner: Claude Opus 5. Both suggested the same easy tray bake. Claude added the safe cooking temperature for chicken and simple tips to get crispier potatoes, without making it harder.

Test 6 · Explaining money in plain words

Explaining money in plain words: Claude, by a nose

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

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.

Claude Opus 5 About 10 s · 150 words Winner

Okay, so both are retirement accounts with tax perks — the difference is when you pay taxes.

Traditional IRA: You put money in before taxes, so you get a tax break now. Your money grows untouched, but when you pull it out in retirement, you pay income tax on it.

Roth IRA: You put in money you've already paid taxes on — no break today. But it grows tax-free, and withdrawals in retirement are completely tax-free.

Example: You put in $6,000 this year. With a Traditional, you might knock about $1,300 off this year's tax bill. With a Roth, you get nothing back now — but if that $6,000 grows to $30,000 by retirement, you keep every penny, tax-free.

Rule of thumb: If you think your tax rate will be higher later (young, early career), Roth usually wins. If you're in a high bracket now, Traditional may make more sense.

Winner: Claude Opus 5. Both explained the difference well, with an example. Claude added a one-line rule of thumb to help you choose. Remember that neither replaces a financial adviser.

Test 7 · A bedtime story for a grandchild

A bedtime story: ChatGPT makes Leo the hero

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.

Ask GPT 5.5 yourself
Claude Opus 5 About 9 s · 209 words

Leo and the Little Star Dinosaur

Once upon a time, in a forest of soft ferns, there lived a small dinosaur named Rex. Rex had gentle green scales and a tail that swished like a feather.

One evening, as the sky turned purple, Rex noticed the light slipping away behind the hills. "Oh," he whispered. "The dark is coming."

He curled up beneath a big leaf and waited, very still. But something surprising happened. The dark wasn't empty at all.

First, tiny fireflies floated up from the grass, blinking like little lanterns. Then the moon rose, round and silver, resting on the treetops like a friendly face. And then — one by one — the stars came out, hundreds of them, sparkling all across the sky.

Rex blinked. "The dark isn't scary," he said softly. "It's where all the beautiful lights live."

He stretched out on the warm moss and listened. The crickets sang a slow song. The breeze hummed through the ferns. Far away, a mother dinosaur called goodnight to her babies.

Rex closed his eyes and smiled, safe and cozy under his blanket of stars.

And somewhere, not too far away, a boy named Leo closed his eyes too — and dreamed of dinosaurs.

Goodnight, Leo. 🦕✨

Ask Claude Opus 5 yourself

Winner: GPT 5.5. ChatGPT put Leo in the story, gave him a friendly little dinosaur and a calm breathing trick for the dark. Claude's story was lovely, but it was about a dinosaur named Rex, with Leo only in the last line.

Test 8 · Planning a short trip

Planning a trip: Claude plans for you

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.
Ask GPT 5.5 yourself
Claude Opus 5 About 30 s · 727 words Winner

A Relaxed 3 Days in Lisbon

Golden rule for this trip: Lisbon's hills are real, but you almost never have to climb them. Taxis and Uber are cheap (most city rides €5–8), and the funiculars and the Santa Justa Lift exist precisely so you don't have to walk up. Use them freely — go up by wheels, stroll down on foot.


Day 1 — Easy Introduction: Baixa, Chiado & the Riverfront

Morning. Start flat in Baixa, the grid-plan downtown. Coffee and a pastel de nata at Confeitaria Nacional (Praça da Figueira), open since 1829. Then wander the pedestrian streets to Praça do Comércio, the grand square opening onto the Tagus — benches, wide-open water views, no incline at all.

Midday. Take the Elevador de Santa Justa (or better, skip the long queue: walk into Chiado via Rua do Carmo, which rises gently, and enter the viewing platform from the top side at Largo do Carmo). Lunch in Chiado — Café A Brasileira for atmosphere, or the excellent Time Out Market at Cais do Sodré if you'd rather graze across many stalls while seated.

Afternoon. Rest at the hotel. Lisbon rewards a siesta.

Evening. Sunset drinks at a riverside terrace in Cais do Sodré, then dinner nearby.

Tip: Buy a rechargeable Navegante card (€0.50) at any metro station. It works on trams, funiculars, metro and the Santa Justa Lift, and saves a lot of fumbling for cash.


Day 2 — Belém: Flat, Grand, and Delicious

Belém is the flattest, most relaxed district in Lisbon — riverside promenades, wide pavements, and no hills whatsoever.

Morning. Taxi or Uber straight there (15 min). See the Jerónimos Monastery — if you only do the church, entry is free and the cloister is worth the modest ticket. Then the short, level walk along the water to the Monument to the Discoveries and the Belém Tower.

Midday. Pastéis de Belém — the original, still warm, dusted with cinnamon. There's a huge seated café behind the takeaway counter that most tourists miss; go inside and sit down.

Afternoon. Optional and excellent: the MAAT museum's sloping roof gives a lovely river view with a gentle ramp instead of steps. Or simply sit in the gardens.

Evening. Back to town. Dinner at a traditional tasca — grilled fish, bacalhau à brás, house wine.

Tip: Go to Belém early (arrive by 9:30) — the monastery queue builds fast, and the afternoon sun on that riverfront is strong with little shade.


Day 3 — Views Without the Climb: Alfama & Miradouros

Morning. Ride Tram 28 — but board at Martim Moniz (the starting point) to get a seat, and consider going in the reverse direction or taking Tram 12, a shorter loop that's far less crowded. Ride it up through Alfama and let the tram do the climbing.

Midday. Get off near Miradouro das Portas do Sol — one of the great Lisbon views, terracotta rooftops tumbling down to the river, with a café right there. The nearby Miradouro de Santa Luzia has a shaded, tiled pergola and benches.

From here, everything is downhill back into Baixa — a genuinely pleasant 20-minute amble through Alfama's lanes.

Afternoon. Rest, or an easy visit to the Sé Cathedral (flat, right on the tram line).

Evening. A farewell dinner with fado. Book a place that serves proper food rather than a tourist show — Clube de Fado or A Baiuca in Alfama. Reserve a few days ahead.

Tip: Alfama's lanes are cobbled and uneven. Wear shoes with grip and a cushioned sole — the calçada pavement is beautiful but slippery, especially if it's damp.


A Few Practical Notes

  • If you want one more view: the Elevador da Glória funicular takes you up to Miradouro de São Pedro de Alcântara in two minutes for the price of a metro ticket. Best at sunset.
  • Lunch is the value meal. Most restaurants do a prato do dia for €10–14, and Portuguese lunches are leisurely — perfect for your pace.
  • The couvert isn't free. Bread, olives and cheese brought unasked to your table are charged. Wave them away if you don't want them; nobody minds.
  • Sundays, many museums are free or discounted in the morning, but also busier.

Enjoy — Lisbon is a city that genuinely rewards slowing down.

Ask Claude Opus 5 yourself

Winner: Claude Opus 5. Both avoided the steep hills. Claude's plan felt made for a couple in their sixties: go up by taxi and walk down, rest in the afternoon, a transport card tip and a warning about the bread charged at restaurants. It was also much longer to read.

Scorecard

Test Winner
1. A condolence card Claude Opus 5
2. Understanding a confusing letter Claude Opus 5
3. Spotting a scam GPT 5.5
4. A firm but polite complaint Tie
5. Dinner from what's in the fridge Claude Opus 5
6. Explaining money in plain words Claude Opus 5
7. A bedtime story for a grandchild GPT 5.5
8. Planning a short trip Claude Opus 5
Total GPT 5.5 2 · Claude Opus 5 5 · 1 tie

What it costs, in plain words

OpenAI and Anthropic each sell their own monthly plan for ChatGPT and Claude. If you want both, that means two subscriptions.

In chatmodel, GPT 5.5 and Claude Opus 5 are both included in one plan, Pro, together with Gemini, 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, Claude gave a wrong email address for reporting a scam, in an otherwise excellent answer. That’s typical: the answer sounds sure of itself even when a small detail is wrong.

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 Claude Opus 5 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.

What changed

  • First test: GPT 5.5 and Claude Opus 5, 8 everyday tasks, one try each.

Frequently asked questions

Is Claude better than ChatGPT?

In our 8 everyday tests, Claude Opus 5 won 5, GPT 5.5 won 2 and one was a tie. Claude was better at warm writing and explanations; ChatGPT was better at short answers and got every fact right.

Is ChatGPT the same as GPT 5.5?

ChatGPT is OpenAI's app, and GPT is the family of models behind it. In chatmodel you use GPT 5.5 directly, next to Claude and many others.

Which one makes fewer mistakes?

In our test, ChatGPT made no mistakes and Claude gave one wrong email address. Both can get facts wrong sometimes, so double-check anything important: names, dates, amounts, phone numbers and web addresses.

Which is better for writing letters and emails?

Claude, if the tone matters: its condolence card and complaint email felt more personal and complete. ChatGPT is better if you want something short to copy and send.

Which is easier to use?

Both are as easy as sending a message. ChatGPT's answers were shorter (about 180 words on average in our test, against about 310 for Claude), so they're quicker to read.

Can Claude and ChatGPT search the internet?

In chatmodel, both GPT 5.5 and Claude Opus 5 can search the web when your question needs recent information.

Is there a free version?

chatmodel has a free model, Instant, so you can start without paying. GPT 5.5 and Claude Opus 5 are included in the Pro plan.

Can I use both ChatGPT and Claude?

Yes. In chatmodel both are in the same app and the same plan, and you can switch between them in the middle of a conversation. Ask one, then ask the other and keep the answer you like best.

Is it safe to type personal information?

Be careful as you would anywhere online: don't paste passwords, full card numbers or your Social Security number. For how chatmodel handles your data, see its Privacy Policy.

Use both, in one place

In chatmodel you can ask GPT 5.5 and Claude Opus 5 the same question and keep the answer you like best.

Start for free

Chatmodel is an independent service offering access to third-party AI models. AI can make mistakes. Using Chatmodel means you agree to our Terms and Privacy Policy.