# LangSmith vs Manufact: who uses which

On usedby, 46 companies use LangSmith and 23 use Manufact. 2 companies use both, including Nvidia and Elastic. Counts include every proof level, job-post signals included; each company keeps its proof level on each side. Latest check 2026-11-02: 63 of 69 public lines checked.

## Side by side

|  | [LangSmith](https://www.usedby.ai/tools/langsmith.md) | [Manufact](https://www.usedby.ai/tools/manufact.md) |
|---|---|---|
| Public customers | 46 | 23 |
| Confirmed | 1 | 0 |
| Observed | 43 | 23 |
| Signals (job posts) | 2 | 0 |
| Top industries of customers (every proof level) | HR & Recruiting (5), Fintech & Payments (4), IT Services & System Integration (4) | IT Services & System Integration (2), Artificial Intelligence (1), Crypto & Web3 (1) |
| Category | LLM observability & evals | Agent frameworks & AI gateways |
| Free trial | Free trial or free plan available. ([langchain.com](https://www.langchain.com/pricing), checked 2026-10-21) | Free trial or free plan available. ([manufact.com](https://manufact.com/pricing), checked 2026-10-27) |
| Pricing | Developer: $0 seat per month; Plus: $39 seat per month; Enterprise: contact sales ([langchain.com](https://www.langchain.com/pricing), checked 2026-10-21) | Free: $0 /mo.; Pay as you go: $10 included credits per month; Pro: $250 /mo. + usage; Enterprise: contact sales ([manufact.com](https://manufact.com/pricing), checked 2026-10-27) |
| Security | — | ISO 27001, SOC 2 Type II ([trust.manufact.com](https://trust.manufact.com/), checked 2026-10-27) |

## 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, LangSmith | Proof, Manufact | First public proof, LangSmith |
|---|---|---|---|
| [Nvidia](https://www.usedby.ai/companies/nvidia.md) | Observed | Observed | On or before May 2026 |
| [Elastic](https://www.usedby.ai/companies/elastic.md) | Observed | Observed | On or before December 2024 |

## Published results

Reviewed stories only; usedby did not measure the figures.

- LangSmith: [Harvey](https://www.usedby.ai/case-studies/harvey-langsmith.md): story without a checked figure. (published 2025-12-10)

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