LFM 3B - API, Providers, Stats

OpenRouter provides an OpenAI-compatible completion API to 0 models & providers that you can call directly, or using the OpenAI SDK. Additionally, some third-party SDKs are available.

In the examples below, the OpenRouter-specific headers are optional. Setting them allows your app to appear on the OpenRouter leaderboards.

Using the OpenAI SDK

import OpenAI from "openai"

const openai = new OpenAI({
 baseURL: "https://openrouter.ai/api/v1",
 apiKey: "<OPENROUTER_API_KEY>",
 defaultHeaders: {
 "HTTP-Referer": "<YOUR_SITE_URL>", // Optional. Site URL for rankings on openrouter.ai.
 "X-Title": "<YOUR_SITE_NAME>", // Optional. Site title for rankings on openrouter.ai.
 }
})

async function main() {
 const completion = await openai.chat.completions.create({
 model: "liquid/lfm-3b",
 messages: [
 {
 "role": "user",
 "content": "What is the meaning of life?"
 }
 ]
 })

 console.log(completion.choices[0].message)
}
main()

Using the OpenRouter API directly

fetch("https://openrouter.ai/api/v1/chat/completions", {
 method: "POST",
 headers: {
 "Authorization": "Bearer <OPENROUTER_API_KEY>",
 "HTTP-Referer": "<YOUR_SITE_URL>", // Optional. Site URL for rankings on openrouter.ai.
 "X-Title": "<YOUR_SITE_NAME>", // Optional. Site title for rankings on openrouter.ai.
 "Content-Type": "application/json"
 },
 body: JSON.stringify({
 "model": "liquid/lfm-3b",
 "messages": [
 {
 "role": "user",
 "content": "What is the meaning of life?"
 }
 ]
 })
});

Using third-party SDKs

For information about using third-party SDKs and frameworks with OpenRouter, please see our frameworks documentation.

See the Request docs for all possible parameters, and Parameters for recommended values.