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Chat model · Anthropic

Claude Opus 4.8

Included in Pro · came out May 2026

For careful research on things that change, like products and places

Claude Opus 4.8 is the last of the Opus 4 versions of Anthropic's Claude, and the first Opus that can search the web. It suits you if you want careful answers with recent information.

Chat with Claude Opus 4.8

Claude Opus 4.8 in numbers

What it knows about

Up to January 2026

It learned from information up to January 2026. 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 Claude Opus 4.8 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.

Here's a warm thank-you note for your neighbour:

Dear [Neighbour's Name],

Thank you so much for watering my plants while I was away. It was such a relief knowing they were in good hands—and they've never looked healthier! I'm so lucky to have a neighbour as thoughtful as you. Please enjoy this little something as a small token of my gratitude.

With heartfelt thanks, [Your Name]

That comes in at around 60 words, leaving you room to personalise it if you'd like.

Answered in about 4 seconds · 84 words

Ask it yourself

The Claude family in chatmodel

The newest is Claude Fable 5.1. Ordered by release date.

  1. February 2026Claude Opus 4.6
  2. February 2026Claude Sonnet 4.6
  3. April 2026Claude Opus 4.7
  4. May 2026Claude Opus 4.8You're here
  5. June 2026Claude Sonnet 5
  6. July 2026Claude Fable 5
  7. July 2026Claude Opus 5

What it's good for

Try it with one of these

Press “Try this” and chatmodel opens with Claude Opus 4.8 selected and the message already written. Change any word you like.

Compare hearing aids

“My father, 78, needs hearing aids. Search for the main types available now, explain the differences in plain words, and give me questions to ask the audiologist.”

Try this

Plan a gentle city break

“Plan four relaxed days in Lisbon for two people in their sixties who don't want steep walks. Suggest where to stay, one main thing each day, and good places to eat nearby.”

Try this

Explain a news story

“Everyone is talking about a news story I haven't followed. Look up the latest and explain it in five short points, without taking sides. The story is about:”

Try this

Choose a washing machine

“I need a new washing machine for a family of four, quiet and reliable. Search for well-reviewed options and compare three in a simple table: size, noise, warranty and what reviewers complain about.”

Try this

In plain words

Claude Opus 4.8 is a chat assistant from Anthropic. It’s an Opus, the careful size of Claude, and the Opus 4 version that came after Opus 4.7 in chatmodel.

What sets it apart from the earlier Opus 4 versions: it can search the web. It still thinks before it answers, reads PDFs and understands photos, so it can mix what’s in your document with what it finds online.

How to get the most out of it

  1. Say you want it to search. “Look up the latest” makes clear you need recent information.
  2. Ask for sources and open the ones that matter before you act.
  3. Describe who it’s for. Age, budget, what they enjoy. Research is only useful when it fits.
  4. Ask for a table when you compare products. It’s easier to read than paragraphs.

How it compares with its siblings

Claude Opus 4.5, 4.6 and 4.7 came before it and don’t search the web. Claude Opus 5 is newer. For quick everyday questions with web search, Claude Sonnet 5 answers faster, and Claude Fable 5 is for the most demanding jobs.

When to pick another model

For trips, our plan a trip guide has messages ready to copy. For AI search from a company known for showing its sources, try Sonar. To compare with ChatGPT, read ChatGPT vs Claude.

Other models worth a look

Claude Opus 4.7

Anthropic

Read the guide

Claude Opus 5

Anthropic

Read the guide

Claude Sonnet 5

Anthropic

Read the guide

Frequently asked questions

Can Claude Opus 4.8 search the web?

Yes. It can look things up when your question needs recent information. Open the sources for anything important.

Claude Opus 4.8 or Claude Opus 5?

Both can search the web. Opus 5 is the newer version, so it's the natural pick if you're unsure. Try the same message on both if you want to compare.

Can it read PDFs and photos?

Yes. You can upload documents and photos and ask questions about them.

Who makes Claude?

Claude is made by Anthropic, an AI company. Opus is the most careful of its sizes.

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