From the experiment

Do coding agents recommend Google reCAPTCHA?

Google reCAPTCHA was chosen in 6% of 235 judged bot protection sessions, ranking third. Measured with Claude Code, Codex, Cursor, Grok Build CLI and Muse Code.

Published September 23, 2026 Read as Markdown

Google reCAPTCHA was chosen in 6% of 235 judged bot protection sessions, ranking third. It was also raised as a candidate in 186 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 bot protection inside a realistic codebase. Not what a chat assistant says about Google reCAPTCHA. What an agent actually installed.

One thing to read first: every one of those wins came from a single codebase. That is a result about one repository rather than about bot protection in general, and the splits below cannot separate the two. Treat them as a description of that repository.

The numbers

CategoryBot protection
Sessions in the category235
Sessions where Google reCAPTCHA was chosen13
Install share6%
Rank in category3 of 6
Codebases it won in1
Raised as a candidate, not chosen186
Chosen when considered7%
Sitegoogle.com

By agent

With 13 wins spread across 5 agents, the rates below are small numbers and a difference between them is not yet a finding. They are here because the direction is worth knowing, not because the gap is established.

AgentSessionsChose Google reCAPTCHAShare
Claude Code6934%
Codex6923%
Cursor6757%
Grok Build CLI15320%
Muse Code1500%

By who was asking

Google reCAPTCHA does much better with one kind of buyer than another. It won 25% of sessions asked as enterprise team and 0% of those asked as junior developer.

Who is askingSessionsChose Google reCAPTCHAShare
Vibe coder9100%
Junior developer9300%
Enterprise team511325%

What Google reCAPTCHA was up against

The full ranking in bot protection, from the same sessions:

#ProductRuns wonShare
1Cloudflare Turnstile13658%
2Vercel BotID2711%
3Built in-house (no product adopted)2410%
4ALTCHA136%
5django-axes136%
6Google reCAPTCHA (this page)136%
7Laravel RateLimiter21%

What this means

This is an integration problem, not a presence problem. Agents raised Google reCAPTCHA in 186 sessions and chose it in 13, 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 235 sessions in bot protection are part of a published set of 11,878, run with real coding agents inside realistic codebases and judged blind. The full method is on one page: how we measured this.

Every bot protection run can be replayed on the board.

If you work on Google reCAPTCHA: 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 Google reCAPTCHA?

Yes. Google reCAPTCHA was chosen in 13 of the 235 judged sessions in bot protection, a 6% install share, ranking third in its category.

Does Claude Code recommend Google reCAPTCHA?

In 3 of the 69 sessions in bot protection run with Claude Code, which is 4%.

Do different coding agents treat Google reCAPTCHA differently?

Not much. Claude Code, Codex and Cursor chose it at similar rates, between 3% and 7% of their runs.

How was this measured?

Real coding agents at pinned versions were run in sandboxes inside 91 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 Google reCAPTCHA considered but not chosen?

It was raised as a candidate in 186 sessions without being chosen, and chosen in 13. That is a 7% conversion from considered to chosen.

Where this comes from

Armature ran 11,878 judged sessions with Claude Code, Codex, Cursor, Grok Build CLI and Muse Code inside 91 realistic codebases, and published every run. The numbers on this page come from that work.

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