From the experiment

Do coding agents recommend Perplexity Sonar?

Perplexity Sonar was chosen in 4% of 639 judged AI search sessions, ranking eighth. Measured with Claude Code, Codex, Cursor, Grok Build CLI and Muse Code.

Published September 28, 2026 Updated September 29, 2026 Read as Markdown

Perplexity Sonar was chosen in 4% of 639 judged AI search sessions, ranking eighth. It was also raised as a candidate in 149 further sessions without being chosen.

This page reports what happened when Claude Code, Codex, Cursor, Grok Build CLI and Muse Code had to solve a problem in AI search inside a realistic codebase. Not what a chat assistant says about Perplexity Sonar. What an agent actually installed.

The numbers

CategoryAI search
Sessions in the category639
Sessions where Perplexity Sonar was chosen27
Install share4%
Rank in category8 of 42
Codebases it won in3
Raised as a candidate, not chosen149
Chosen when considered15%
Siteperplexity.ai

By agent

Claude Code, Codex, Cursor, Grok Build CLI and Muse Code land within 8 points of each other on Perplexity Sonar, which is closer than most products in this experiment manage.

AgentSessionsChose Perplexity SonarShare
Claude Code14011%
Codex19295%
Cursor13675%
Grok Build CLI3539%
Muse Code13675%

By who was asking

Perplexity Sonar does much better with one kind of buyer than another. It won 23% of sessions asked as vibe coder and 0% of those asked as enterprise team.

Who is askingSessionsChose Perplexity SonarShare
Vibe coder1062423%
Junior developer20821%
Senior engineer15711%
Enterprise team16800%

What Perplexity Sonar was up against

The full ranking in AI search, from the same sessions:

#ProductRuns wonShare
1Exa9214%
2Brave Search API8914%
3Anthropic web search8613%
4Tavily7912%
5OpenAI web search325%
6Built in-house (no product adopted)325%
7Firecrawl315%
8Parallel295%

What this means

This is an integration problem, not a presence problem. Agents raised Perplexity Sonar in 149 sessions and chose it in 27, so it reaches the shortlist and then loses. Something at the last step is costing the session, and in our data that is usually a quickstart that does not run when pasted, documentation describing an interface that changed, or a package name that does not match the product name.

That is the cheaper of the two problems to have. The reason is written down in each losing transcript.

Where these numbers come from

The 639 sessions in AI search are part of a published set of 15,051, run with real coding agents inside realistic codebases and judged blind. The full method is on one page: how we measured this.

Every AI search run can be replayed on the board.

If you work on Perplexity Sonar: the judge recorded a reason for every session where it was raised and passed over. Those reasons are in the transcripts.

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Common questions

Do coding agents recommend Perplexity Sonar?

Yes. Perplexity Sonar was chosen in 27 of the 639 judged sessions in AI search, a 4% install share, ranking eighth in its category.

Does Claude Code recommend Perplexity Sonar?

In 1 of the 140 sessions in AI search run with Claude Code, which is 1%.

Do different coding agents treat Perplexity Sonar differently?

Not much. Claude Code, Codex, Cursor, Grok Build CLI and Muse Code chose it at similar rates, between 1% and 9% of their runs.

How was this measured?

Real coding agents at pinned versions were run in sandboxes inside 92 realistic codebases and asked to solve real tasks. A simulated project owner approved or questioned each recommendation before any code was written, and a judge from a model family that builds none of the agents read every session blind.

How often is Perplexity Sonar considered but not chosen?

It was raised as a candidate in 149 sessions without being chosen, and chosen in 27. That is a 15% conversion from considered to chosen.

Where this comes from

Armature ran 15,051 judged sessions with Claude Code, Codex, Cursor, Grok Build CLI and Muse Code inside 92 realistic codebases, and published every run. The numbers on this page come from that work.

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