langchain-hs-openai

OpenAI ChatModel provider and embeddings for langchain-hs.

Supports OpenAI and any OpenAI-compatible endpoint (OpenRouter, Fireworks, Together AI). Does not depend on Ollama or Gemini packages.

Installation

# stack.yaml extra-deps
- langchain-hs-openai-0.0.6.0

# package.yaml / .cabal
dependencies:
  - langchain-hs-openai

Usage

import Langchain.Provider.OpenAI
import Control.Monad.Except (runExceptT)

main :: IO ()
main = do
  let model = newOpenAI "sk-..." "gpt-4o"
  res <- runExceptT $ invoke model [userMessage "Hello"] Nothing
  print res