From the experiment

Do coding agents recommend Daytona?

Daytona was chosen in 16% of 299 judged code sandboxes sessions, ranking third. Measured with Claude Code, Codex and Cursor.

Published September 3, 2026 Read as Markdown

Daytona was chosen in 16% of 299 judged code sandboxes sessions, ranking third. It was also raised as a candidate in 240 further sessions without being chosen.

This page reports what happened when Claude Code, Codex and Cursor had to solve a problem in code sandboxes inside a realistic codebase. Not what a chat assistant says about Daytona. What an agent actually installed.

The numbers

CategoryCode sandboxes
Sessions in the category299
Sessions where Daytona was chosen47
Install share16%
Rank in category3 of 7
Codebases it won in5
Raised as a candidate, not chosen240
Chosen when considered16%
Sitedaytona.io

By agent

The three agents treat Daytona very differently. Codex chose it in 37% of its sessions in this category and Claude Code in 1%, a spread of 36 points.

AgentSessionsChose DaytonaShare
Claude Code9511%
Codex1023837%
Cursor10288%

A single blended install share would report the midpoint and hide both ends. If most of your users run Claude Code, your real position here is 1%, not 16%.

By who was asking

Daytona does much better with one kind of buyer than another. It won 60% of sessions asked as enterprise team and 11% of those asked as senior engineer.

Who is askingSessionsChose DaytonaShare
Senior engineer2692911%
Enterprise team301860%

What Daytona was up against

The full ranking in code sandboxes, from the same sessions:

#ProductRuns wonShare
1E2B12742%
2Modal7425%
3Daytona (this page)4716%
4Vercel Sandbox4314%
5Anthropic Code Execution31%
6Runloop Devboxes31%
7Cloudflare Workers21%

What this means

A solid second or third position in a category means the agent is genuinely choosing rather than reaching automatically. That is a winnable position, because the inputs it uses can be changed.

The fastest gains are usually in the sessions that were nearly won: read them, find the step where the agent moved on, and fix that step.

Where these numbers come from

The 299 sessions in code sandboxes are part of a published set of 5,292, run with real coding agents inside realistic codebases and judged blind. The full method is on one page: how we measured this.

Every code sandboxes run can be replayed on the board.

If you work on Daytona: 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 Daytona?

Yes. Daytona was chosen in 47 of the 299 judged sessions in code sandboxes, a 16% install share, ranking third in its category.

Does Claude Code recommend Daytona?

In 1 of the 95 sessions in code sandboxes run with Claude Code, which is 1%.

Do different coding agents treat Daytona differently?

Yes, and by a wide margin. Codex chose it in 37% of its runs and Claude Code in 1%.

How was this measured?

Real coding agents at pinned versions were run in sandboxes inside 51 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 Daytona considered but not chosen?

It was raised as a candidate in 240 sessions without being chosen, and chosen in 47. That is a 16% conversion from considered to chosen.

Where this comes from

Armature ran 5,292 judged sessions with Claude Code, Codex and Cursor inside 51 realistic codebases, and published every run. The numbers on this page come from that work.

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