# Daytona vs E2B: who uses which

On usedby, 31 companies use Daytona and 26 use E2B. 1 company uses both, including Meta. Counts include every proof level, job-post signals included; each company keeps its proof level on each side. Latest check 2026-10-27: 57 of 57 public lines checked.

## Side by side

|  | [Daytona](https://www.usedby.ai/tools/daytona.md) | [E2B](https://www.usedby.ai/tools/e2b.md) |
|---|---|---|
| Public customers | 31 | 26 |
| Confirmed | 15 | 12 |
| Observed | 16 | 14 |
| Signals (job posts) | 0 | 0 |
| Top industries of customers (every proof level) | DevTools & Infrastructure (6), Artificial Intelligence (4), Accounting & Audit (1) | Artificial Intelligence (16), DevTools & Infrastructure (3), Crypto & Web3 (1) |
| Category | Agent frameworks & AI gateways | Agent frameworks & AI gateways |
| Data processing terms | — | A data processing agreement is available. ([e2b.dev](https://e2b.dev/security), checked 2026-10-25) |
| Free trial | — | Free trial or free plan available. ([e2b.dev](https://e2b.dev/pricing), checked 2026-10-25) |
| Languages | — | Python, JavaScript ([e2b.dev](https://e2b.dev/), checked 2026-10-25) |

## Companies that use both

Every proof level counts; the proof level of each side is shown, strongest proofs first. The first public proof is not an adoption date.

| Company | Proof, Daytona | Proof, E2B | First public proof, E2B |
|---|---|---|---|
| [Meta](https://www.usedby.ai/companies/meta.md) | Observed | Observed | On or before October 2025 |

## Published results

Reviewed stories only; usedby did not measure the figures.

- Daytona: [Martian](https://www.usedby.ai/case-studies/martian-daytona.md): **95%**: “95% faster execution of SWE-Bench Verified” (captured by usedby 2026-10-27)
- Daytona: [Writer](https://www.usedby.ai/case-studies/writer-daytona.md): **90%**: “90% savings on infrastructure costs compared to an in-house build” (captured by usedby 2026-10-27)
- E2B: [Replicas](https://www.usedby.ai/case-studies/replicas-e2b.md): **60%**: “More than 60% lower customer latency for heavy Replicas workloads after moving to E2B.” (published 2026-08-27)
- E2B: [Arena (LMArena)](https://www.usedby.ai/case-studies/arena-e2b.md): **600,000 sandboxes**: “Approximately 600,000 sandboxes per day.” (published 2026-10-01)

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Source: https://www.usedby.ai/compare/daytona-vs-e2b · How we check: https://www.usedby.ai/methodology