# Browserbase vs LangSmith: who uses which

On usedby, 19 companies use Browserbase and 43 use LangSmith. 1 company uses both, including Clay. Counts include every proof level, job-post signals included; each company keeps its proof level on each side. Latest check 2026-10-13: 56 of 62 public lines checked.

## Side by side

|  | [Browserbase](https://www.usedby.ai/tools/browserbase.md) | [LangSmith](https://www.usedby.ai/tools/langsmith.md) |
|---|---|---|
| Public customers | 19 | 43 |
| Confirmed | 0 | 0 |
| Observed | 19 | 42 |
| Signals (job posts) | 0 | 1 |
| Top industries of customers (every proof level) | Artificial Intelligence (7), Fintech & Payments (3), Data & Analytics (2) | HR & Recruiting (5), Fintech & Payments (4), DevTools & Infrastructure (3) |
| Category | Agent frameworks & AI gateways | LLM observability & evals |
| Security | SOC 2 Type II, HIPAA ([trust.browserbase.com](https://trust.browserbase.com/), checked 2026-10-07) | — |
| Free trial | Free trial or free plan available. ([browserbase.com](https://www.browserbase.com/pricing), checked 2026-10-07) | Free trial or free plan available. ([langchain.com](https://www.langchain.com/pricing), checked 2026-10-04) |
| 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 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, Browserbase | Proof, LangSmith | First public proof, Browserbase |
|---|---|---|---|
| [Clay](https://www.usedby.ai/companies/clay.md) | Observed | Observed | On or before October 2025 |

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