# E2B vs LangSmith: who uses which

On usedby, 23 companies use E2B and 43 use LangSmith. 1 company uses both, including Vanta. Counts include every proof level, job-post signals included. Companies named on both have a confirmed or observed line on each side. Latest check 2026-10-06: 60 of 66 public lines checked.

## Side by side

|  | [E2B](https://www.usedby.ai/tools/e2b.md) | [LangSmith](https://www.usedby.ai/tools/langsmith.md) |
|---|---|---|
| Public customers | 23 | 43 |
| Confirmed | 15 | 11 |
| Observed | 8 | 31 |
| Signals (job posts) | 0 | 1 |
| Top industries of customers | Artificial Intelligence (4), Cybersecurity (1), Media & Publishing (1) | HR & Recruiting (5), Fintech & Payments (4), Biotech & Pharma (2) |
| Category | LLM Ops & Frameworks | LLM Ops & Frameworks |
| Data processing terms | A data processing agreement is available. ([e2b.dev](https://e2b.dev/security), checked 2026-10-07) | — |
| Free trial | Free trial or free plan available. ([e2b.dev](https://e2b.dev/pricing), checked 2026-10-07) | Free trial or free plan available. ([langchain.com](https://www.langchain.com/pricing), checked 2026-10-04) |
| Languages | Python, JavaScript ([e2b.dev](https://e2b.dev/), checked 2026-10-07) | — |
| Pricing | — | Developer: $0 seat per month; Plus: $39 seat per month; Enterprise: contact sales ([langchain.com](https://www.langchain.com/pricing), checked 2026-10-04) |

## Companies named on both

Confirmed or observed on each side.

| Company |
|---|
| [Vanta](https://www.usedby.ai/companies/vanta.md) |

## Published results

Reviewed stories only; usedby did not measure the figures.

- E2B: [LMArena](https://www.usedby.ai/case-studies/lmarena-e2b.md): **230,000**: “we had over 50,000 users who started over 230,000 E2B sandboxes” (published 2025-02-03)
- E2B: [Genspark](https://www.usedby.ai/case-studies/genspark-e2b.md): **$250M ARR**: “from zero to $250M ARR in 12 months” (published 2026-05-07)

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