OpenAI with LangChain

Use LangChain to integrate OpenAI with Helicone to log your OpenAI usage.

This integration method is maintained but no longer actively developed. For the best experience and latest features, use our new AI Gateway with unified API access to 100+ models.

2. HELICONE_API_KEY=<your-helicone-api-key>
   OPENAI_API_KEY=<your-openai-api-key>
   
3. javascript

   import { OpenAI } from "@langchain/openai";
   
   const llm = new OpenAI({
     apiKey: process.env.OPENAI_API_KEY,
     baseURL: "https://oai.helicone.ai/v1",
     defaultHeaders: {
       "Helicone-Auth": `Bearer ${process.env.HELICONE_API_KEY}`
     }
   });
   
4. javascript

   const response = await llm.invoke("What is the meaning of life?");
   console.log(response);