# Langchain vs Portkey: who uses which

On usedby, 32 companies use Langchain and 22 use Portkey. No company is listed with both yet. Counts include every proof level, job-post signals included. Companies named on both have a confirmed or observed line on each side. Latest check 2026-10-07: 54 of 54 public lines checked.

## Side by side

|  | [Langchain](https://www.usedby.ai/tools/langchain.md) | [Portkey](https://www.usedby.ai/tools/portkey.md) |
|---|---|---|
| Public customers | 32 | 22 |
| Confirmed | 13 | 12 |
| Observed | 16 | 10 |
| Signals (job posts) | 3 | 0 |
| Top industries of customers | HR & Recruiting (4), Fintech & Payments (3), Biotech & Pharma (2) | Cybersecurity (2), HealthTech & Digital Health (2), Agency & Studio (1) |
| Category | LLM Ops & Frameworks | LLM Ops & Frameworks |
| Free trial | Free trial or free plan available. ([langchain.com](https://www.langchain.com/pricing), checked 2026-10-04) | Free trial or free plan available. ([portkey.ai](https://portkey.ai/pricing), 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) | — |
| Integrations | — | OpenAI, Anthropic, Google Gemini, Azure, MongoDB, Qdrant, Milvus, LangChain, LlamaIndex, CrewAI, Cursor, Langfuse ([portkey.ai](https://portkey.ai/docs/integrations/ecosystem), checked 2026-10-07) |

## Published results

Reviewed stories only; usedby did not measure the figures.

- Portkey: [Snorkel AI](https://www.usedby.ai/case-studies/snorkel-ai-portkey.md): **2x**: “2x faster issue detection in development” (captured by usedby 2026-10-05)
- Portkey: [Fontys ICT](https://www.usedby.ai/case-studies/fontys-ict-portkey.md): story without a checked figure. (captured by usedby 2026-10-05)

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