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Chat model · Perplexity

Sonar Reasoning Pro

Included in Pro

Research a question properly, with the sources to back it up

Sonar Reasoning Pro is the more careful Sonar from Perplexity, a company known for AI search with sources. It suits you when a question needs several searches, some thinking and a clear answer at the end.

Chat with Sonar Reasoning Pro

Sonar Reasoning Pro in numbers

What you can give it

  • Your wordsYes
  • PhotosNot this one
  • PDFs and filesYes
  • The webYes

Real answers

See how Sonar Reasoning Pro 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.

Thank you so much for watering my plants while I was away.
It was wonderful to come home to everything looking so healthy and cared for.
Your kindness means a lot and I really appreciate having such a thoughtful neighbour.
Please accept this small gift as a token of my gratitude.

Answered in about 6 seconds · 51 words

Ask it yourself

What it's good for

Try it with one of these

Press “Try this” and chatmodel opens with Sonar Reasoning Pro selected and the message already written. Change any word you like.

Compare two places to retire

“My wife and I are thinking of retiring to either Asheville, North Carolina or Tucson, Arizona. Search the web and compare them on climate, healthcare, cost of living and things to do. Finish with a short summary and the sources.”

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Check a health claim

“A friend says drinking apple cider vinegar every morning lowers blood sugar. Look for what reliable medical sources say about it and explain it in plain words. List the sources.”

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Check a letter against the rules

“I'm going to upload a letter from my energy company about a price change. Read it, then search the web for the current rules on notice periods for price changes and tell me whether the letter follows them.”

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Choose a phone plan

“I need a phone plan for two people who mostly use WhatsApp and maps, and travel to Europe once a year. Search current plans from the main US carriers and suggest the best three, with reasons and sources.”

Try this

In plain words

Sonar Reasoning Pro is a chat model from Perplexity, the company known for AI search with sources. Like all Sonar models, it searches the web before it answers and tells you where the information came from.

What makes this one different is that it thinks before it answers. It is slower, but it handles questions where you need to compare, weigh up or follow several steps. It can also read documents you upload.

How to get the most out of it

  1. Give it the whole question. Your situation, what you’re choosing between and what matters most to you.
  2. Ask for a table or a short summary at the end, so the answer is easy to scan.
  3. Upload the paperwork when you want it checked against current rules or prices.
  4. Open two or three of the sources. A quick look tells you if the pages are reliable.

How it compares with its siblings

Its sibling is Sonar, the plain version. Sonar is the one for a quick fact from the web. Sonar Reasoning Pro is the one for research that needs thinking through, and it can read your documents too.

When to pick another model

If you want warm, careful writing more than research, try Claude Opus 5. For an all-rounder that also reads photos, try GPT 5.5. To ask questions about a long PDF, the PDF chat tool is a simple place to start.

Other models worth a look

Sonar

Perplexity

Read the guide

OpenAI GPT 5.5

OpenAI

Read the guide

Claude Opus 5

Anthropic

Read the guide

Frequently asked questions

Is Sonar Reasoning Pro better than Sonar?

It's more careful. It thinks before it answers and can read documents, so it suits bigger research questions. For a quick fact, plain Sonar answers sooner.

Can it read my documents?

Yes. You can upload a PDF and ask questions about it, and it can check details against the web.

Does it show where the answer came from?

It is built around web search with sources, so you can see the pages it used. It's worth opening them for anything important.

Can I send it a photo?

Not in chatmodel. For photos, try a model that understands pictures, like GPT 5.5.

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