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Chat model · OpenAI

OpenAI GPT 5

Included in Pro · came out August 2025

For questions you want worked out, not just answered

GPT 5 is a model from OpenAI, the company behind ChatGPT, built for questions that need thinking through. It suits paperwork, planning and problems with several steps.

Chat with OpenAI GPT 5

OpenAI GPT 5 in numbers

What it knows about

Up to September 2024

It learned from information up to September 2024. For anything newer it can search the web and show you where it found it.

What you can give it

  • Your wordsYes
  • PhotosYes
  • PDFs and filesYes
  • The webYes

Real answers

See how OpenAI GPT 5 answers

We asked it the same everyday questions as every other model in chatmodel, one try each. This is exactly what came back.

My neighbour watered my plants for two weeks while I was away. Write a short, warm thank-you note I can leave with a small gift. Keep it under 80 words.

Dear [Name],

Thank you so much for taking such good care of my plants while I was away. It gave me real peace of mind, and they look happier than ever! I’m so grateful for your kindness and dependable help. Please accept this small gift as a token of my thanks. So lucky to have you as a neighbor!

Answered in about 5 seconds · 59 words

Ask it yourself

The GPT family in chatmodel

The newest is OpenAI GPT 6 Astra. Ordered by release date.

  1. July 2024OpenAI GPT 4o mini
  2. August 2025OpenAI GPT 5You're here
  3. August 2025OpenAI GPT 5 mini
  4. December 2025OpenAI GPT 5.2
  5. March 2026OpenAI GPT 5.4
  6. March 2026OpenAI GPT 5.4 Mini
  7. April 2026OpenAI GPT 5.5

What it's good for

Try it with one of these

Press “Try this” and chatmodel opens with OpenAI GPT 5 selected and the message already written. Change any word you like.

Split costs fairly

“Three of us are sharing the cost of our mother's care. One of us earns much less, and one lives nearby and helps in person. Suggest two or three fair ways to split the monthly cost, with the reasoning for each.”

Try this

Plan a house clear-out

“I need to clear out my late father's house over four weekends. Give me a step-by-step plan: what to do first, what to keep, sell, donate or throw away, and who to call.”

Try this

Explain a tax letter

“I'll paste a letter from the tax office. Explain what it's asking me for, the deadline, and what happens if I miss it. Use plain words. Here is the letter:”

Try this

How much paint do I need

“My living room is about 5 by 4 meters with a ceiling height of 2.5 meters, one door and two windows. How much paint do I need for two coats on the walls? Show the steps.”

Try this

In plain words

GPT 5 is a chat assistant from OpenAI. The app describes it as OpenAI’s model for complex reasoning, which in plain words means it thinks before it answers and takes care with problems that have several steps.

It reads photos and documents and can search the web. It’s the full version of the GPT 5 generation, with GPT 5 mini as its lighter sibling.

How to get the most out of it

  1. Give it the whole situation. Numbers, names, what you’ve tried. It works better with all the pieces.
  2. Ask it to show the steps. “Show how you got there” lets you check its work.
  3. Upload the document instead of describing it from memory.
  4. Ask for options. “Give me three ways to do this” is often more useful than one answer.

How it compares with its siblings

GPT 5 mini is the lighter model from the same generation. Newer versions build on it: GPT 5.2, GPT 5.4 and GPT 5.5. The 5.6 line (Luna, Terra, Sol) and GPT 6 Astra are newer still.

When to pick another model

For quick everyday questions, GPT 5 mini is enough. If you mostly write letters and long emails, see ChatGPT vs Claude. For money matters, our household budget guide has messages ready to use.

Other models worth a look

OpenAI GPT 5 mini

OpenAI

Read the guide

OpenAI GPT 5.2

OpenAI

Read the guide

OpenAI GPT 5.5

OpenAI

Read the guide

Frequently asked questions

Is GPT 5 still worth using?

Yes, it's a capable model. There are newer versions in chatmodel, like GPT 5.4 and GPT 5.5, so it's worth trying the same message on one of them to compare.

What's the difference between GPT 5 and GPT 5 mini?

GPT 5 is the fuller version, made for harder problems. GPT 5 mini is the lighter one for quick everyday questions.

Can it search the web?

Yes. It can look things up online when your question needs recent information.

Can it read my documents?

Yes. It reads PDFs and understands photos.

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