# How Arena (LMArena) uses E2B

**600,000 sandboxes**: “Approximately 600,000 sandboxes per day.”

As published on [e2b.dev](https://e2b.dev/customers/arena), October 2026. Captured by usedby on 2026-10-10.

- Company: [Arena (LMArena)](https://www.usedby.ai/companies/arena-lmarena.md)
- Tool: [E2B](https://www.usedby.ai/tools/e2b.md)
- Industry: [Artificial Intelligence](https://www.usedby.ai/companies/industry/artificial-intelligence.md)

## What the story says

Arena runs its AI model and agent evaluation platform on E2B, provisioning an isolated Linux sandbox for each evaluation session where agents write and execute code, build apps, and do knowledge work. Sandboxes are launched from templates and can be paused and resumed so users can continue work across sessions.

Summary written by usedby from the source page, in English. The figures are those of E2B and Arena (LMArena), not ours.

> Today, Arena has tens of millions of monthly visitors and runs up to 600,000 E2B sandboxes each day (up from 300,000-400,000 at the time of interview).

- **Under two hours**: “Under two hours to the initial implementation.”

> What we do best is creating evaluations. The underlying infrastructure would have taken us many, many months and many, many senior engineers to actually build out. E2B was basically that team from day one.
>
> Aryan Vichare, Founding Engineer

Source: [e2b.dev](https://e2b.dev/customers/arena), captured 2026-10-10.

## What usedby checked

We compared the story with its live page on 2026-10-10.

- Checked: the figure 600,000 sandboxes is printed word for word on the page, near the name of Arena (LMArena).
- Checked: the passage quoted above is copied word for word from the page, near the name of Arena (LMArena).
- Checked: the publication date is read from the page’s own metadata, never guessed.
- Checked: Arena (LMArena) uses E2B. Confirmed line. Latest check across sources: 2026-10-10.
- Not checked: the result itself. We quote it; we did not measure it.

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Source: https://www.usedby.ai/case-studies/arena-e2b · How we check: https://www.usedby.ai/methodology