Langchain-hs
Haskell implementation for language model orchestration.
- Status
- Generally available
- Last checked
- Checked · Oct 11, 2026
- License
- Open source
- Pricing
- Free tier · from $0
What it is
Langchain-hs is a Haskell library that provides tools and utilities for orchestrating language models. It aims to simplify the process of integrating, managing, and deploying language models in Haskell applications.
Langchain-hs stands out as the only Haskell library specifically designed for orchestrating language models, offering a unique advantage to developers and researchers working within the Haskell ecosystem.
When it fits — and when it doesn’t
A good fit for
Haskell developers looking to integrate language models into their applications.
Researchers who need a robust framework for experimenting with language models in Haskell.
Look elsewhere if
Developers primarily working in languages other than Haskell.
Projects requiring real-time streaming capabilities (Langchain-hs is batch-oriented).
Known weaknesses
Each one links to the public issue, changelog or docs page it came from, where we have one.
- 01
Limited ecosystem and community support
Small user base in the Haskell community, fewer resources for troubleshooting and advanced use cases.
- 02
Complex setup process
Requires a deep understanding of Haskell's ecosystem and dependencies management which can be challenging for new users.
- 03
Limited language model support
Currently supports only a subset of popular language models, limiting its applicability in diverse use cases.
- 04
Performance overhead due to Haskell's runtime
Haskell's garbage collection and lazy evaluation can introduce performance bottlenecks for real-time or high-throughput applications.
What it does well
Simplified language model integration in Haskell applications.
Support for managing and deploying various language models.
Extensive documentation to help developers get started.
Pricing
- Free tier
- YesOpen source — free to use
- Paid from
- $0
- Model
- Flat rate
- Enterprise plan
- No
Pricing not independently confirmed — check the vendor’s page.
Performance benchmarks
How Fast Is It?
Set up Langchain-hs
Setup steps, common gotchas and what to check after 30 days.
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