Overview

Provider Type

API

API Endpoint


                                                        https://openrouter.ai/api/v1

Free Tier Highlights

20 requests/minute

Why Choose OpenRouter?

OpenRouter stands out for its unique features and capabilities. With a developer-friendly API and comprehensive documentation, you can integrate AI capabilities into your applications within minutes.

Quick Start Guide

Visit https://openrouter.ai/

Sign in with Google or GitHub

Navigate to Keys section

Create a new API key

Use with OpenAI SDK (change base_url)

Available Models

Model Name	ID	Context	Capabilities
Google: Gemini 2.0 Flash (free) Free	`google/gemini-2.0-flash-exp:free`	1 000 000	-
Google: Gemini 2.0 Pro (free) Free	`google/gemini-2.0-pro-exp-02-05:free`	1 000 000	-
Meta: Llama 3.3 70B Instruct (free) Free	`meta-llama/llama-3.3-70b-instruct:free`	128 000	-
NVIDIA: Llama 3.1 Nemotron 70B (free) Free	`nvidia/llama-3.1-nemotron-70b-instruct:free`	128 000	-
DeepSeek: R1 (free) Free	`deepseek/deepseek-r1:free`	128 000	-
DeepSeek: R1 Distill Llama 70B (free) Free	`deepseek/deepseek-r1-distill-llama-70b:free`	128 000	-
Mistral: Small 3 (free) Free	`mistralai/mistral-small-24b-instruct-2501:free`	32 000	-
Qwen 2.5 7B Instruct (free) Free	`qwen/qwen-2.5-7b-instruct:free`	32 000	-
Qwen 2.5 VL 72B Instruct (free) Free	`qwen/qwen-2.5-vl-72b-instruct:free`	32 000	-
Microsoft: Phi-3 Medium (free) Free	`microsoft/phi-3-medium-128k-instruct:free`	128 000	-
Microsoft: Phi-3 Mini (free) Free	`microsoft/phi-3-mini-128k-instruct:free`	128 000	-

Integration Examples

Ready-to-use code snippets for your applications.

Select a Model

Select Model

main.py

from openai import OpenAI

client = OpenAI(
    api_key="YOUR_OPENROUTER_KEY",
    base_url="https://openrouter.ai/api/v1"
)

response = client.chat.completions.create(
    model="google/gemini-2.0-flash-exp:free",
    messages=[
        {"role": "user", "content": "What is OpenRouter?"}
    ]
)

print(response.choices[0].message.content)

index.js

import OpenAI from 'openai';

const client = new OpenAI({
  apiKey: 'YOUR_OPENROUTER_KEY',
  baseURL: 'https://openrouter.ai/api/v1'
});

const response = await client.chat.completions.create({
  model: 'google/gemini-2.0-flash-exp:free',
  messages: [
    { role: 'user', content: 'What is OpenRouter?' }
  ]
});

console.log(response.choices[0].message.content);

terminal

curl https://openrouter.ai/api/v1/chat/completions \
  -H "Authorization: Bearer YOUR_OPENROUTER_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "google/gemini-2.0-flash-exp:free",
    "messages": [
      {
        "role": "user",
        "content": "What is OpenRouter?"
      }
    ]
  }'

example.php

<?php
$apiKey = 'YOUR_API_KEY';
$url = "https://openrouter.ai/api/v1/models/google/gemini-2.0-flash-exp:free:generateContent?key=$apiKey";

$data = [
    "contents" => [
        ["parts" => [["text" => "Explain quantum mechanics"]]]
    ]
];

$ch = curl_init($url);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
curl_setopt($ch, CURLOPT_POST, true);
curl_setopt($ch, CURLOPT_POSTFIELDS, json_encode($data));
curl_setopt($ch, CURLOPT_HTTPHEADER, ['Content-Type: application/json']);

$response = curl_exec($ch);
curl_close($ch);

echo $response;
?>

main.go

package main

import (
    "context"
    "fmt"
    "log"
    "github.com/google/generative-ai-go/genai"
    "google.golang.org/api/option"
)

func main() {
    ctx := context.Background()
    client, err := genai.NewClient(ctx, option.WithAPIKey("YOUR_API_KEY"))
    if err != nil { log.Fatal(err) }
    defer client.Close()

    model := client.GenerativeModel("google/gemini-2.0-flash-exp:free")
    resp, err := model.GenerateContent(ctx, genai.Text("Explain quantum mechanics"))
    if err != nil { log.Fatal(err) }
    
    // ...
}

main.py

from openai import OpenAI

client = OpenAI(
    api_key="YOUR_OPENROUTER_KEY",
    base_url="https://openrouter.ai/api/v1"
)

response = client.chat.completions.create(
    model="google/gemini-2.0-pro-exp-02-05:free",
    messages=[
        {"role": "user", "content": "What is OpenRouter?"}
    ]
)

print(response.choices[0].message.content)

index.js

import OpenAI from 'openai';

const client = new OpenAI({
  apiKey: 'YOUR_OPENROUTER_KEY',
  baseURL: 'https://openrouter.ai/api/v1'
});

const response = await client.chat.completions.create({
  model: 'google/gemini-2.0-pro-exp-02-05:free',
  messages: [
    { role: 'user', content: 'What is OpenRouter?' }
  ]
});

console.log(response.choices[0].message.content);

terminal

curl https://openrouter.ai/api/v1/chat/completions \
  -H "Authorization: Bearer YOUR_OPENROUTER_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "google/gemini-2.0-pro-exp-02-05:free",
    "messages": [
      {
        "role": "user",
        "content": "What is OpenRouter?"
      }
    ]
  }'

example.php

<?php
$apiKey = 'YOUR_API_KEY';
$url = "https://openrouter.ai/api/v1/models/google/gemini-2.0-pro-exp-02-05:free:generateContent?key=$apiKey";

$data = [
    "contents" => [
        ["parts" => [["text" => "Explain quantum mechanics"]]]
    ]
];

$ch = curl_init($url);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
curl_setopt($ch, CURLOPT_POST, true);
curl_setopt($ch, CURLOPT_POSTFIELDS, json_encode($data));
curl_setopt($ch, CURLOPT_HTTPHEADER, ['Content-Type: application/json']);

$response = curl_exec($ch);
curl_close($ch);

echo $response;
?>

main.go

package main

import (
    "context"
    "fmt"
    "log"
    "github.com/google/generative-ai-go/genai"
    "google.golang.org/api/option"
)

func main() {
    ctx := context.Background()
    client, err := genai.NewClient(ctx, option.WithAPIKey("YOUR_API_KEY"))
    if err != nil { log.Fatal(err) }
    defer client.Close()

    model := client.GenerativeModel("google/gemini-2.0-pro-exp-02-05:free")
    resp, err := model.GenerateContent(ctx, genai.Text("Explain quantum mechanics"))
    if err != nil { log.Fatal(err) }
    
    // ...
}

main.py

from openai import OpenAI

client = OpenAI(
    api_key="YOUR_OPENROUTER_KEY",
    base_url="https://openrouter.ai/api/v1"
)

response = client.chat.completions.create(
    model="meta-llama/llama-3.3-70b-instruct:free",
    messages=[
        {"role": "user", "content": "What is OpenRouter?"}
    ]
)

print(response.choices[0].message.content)

index.js

import OpenAI from 'openai';

const client = new OpenAI({
  apiKey: 'YOUR_OPENROUTER_KEY',
  baseURL: 'https://openrouter.ai/api/v1'
});

const response = await client.chat.completions.create({
  model: 'meta-llama/llama-3.3-70b-instruct:free',
  messages: [
    { role: 'user', content: 'What is OpenRouter?' }
  ]
});

console.log(response.choices[0].message.content);

terminal

curl https://openrouter.ai/api/v1/chat/completions \
  -H "Authorization: Bearer YOUR_OPENROUTER_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "meta-llama/llama-3.3-70b-instruct:free",
    "messages": [
      {
        "role": "user",
        "content": "What is OpenRouter?"
      }
    ]
  }'

example.php

<?php
$apiKey = 'YOUR_API_KEY';
$url = "https://openrouter.ai/api/v1/models/meta-llama/llama-3.3-70b-instruct:free:generateContent?key=$apiKey";

$data = [
    "contents" => [
        ["parts" => [["text" => "Explain quantum mechanics"]]]
    ]
];

$ch = curl_init($url);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
curl_setopt($ch, CURLOPT_POST, true);
curl_setopt($ch, CURLOPT_POSTFIELDS, json_encode($data));
curl_setopt($ch, CURLOPT_HTTPHEADER, ['Content-Type: application/json']);

$response = curl_exec($ch);
curl_close($ch);

echo $response;
?>

main.go

package main

import (
    "context"
    "fmt"
    "log"
    "github.com/google/generative-ai-go/genai"
    "google.golang.org/api/option"
)

func main() {
    ctx := context.Background()
    client, err := genai.NewClient(ctx, option.WithAPIKey("YOUR_API_KEY"))
    if err != nil { log.Fatal(err) }
    defer client.Close()

    model := client.GenerativeModel("meta-llama/llama-3.3-70b-instruct:free")
    resp, err := model.GenerateContent(ctx, genai.Text("Explain quantum mechanics"))
    if err != nil { log.Fatal(err) }
    
    // ...
}

main.py

from openai import OpenAI

client = OpenAI(
    api_key="YOUR_OPENROUTER_KEY",
    base_url="https://openrouter.ai/api/v1"
)

response = client.chat.completions.create(
    model="nvidia/llama-3.1-nemotron-70b-instruct:free",
    messages=[
        {"role": "user", "content": "What is OpenRouter?"}
    ]
)

print(response.choices[0].message.content)

index.js

import OpenAI from 'openai';

const client = new OpenAI({
  apiKey: 'YOUR_OPENROUTER_KEY',
  baseURL: 'https://openrouter.ai/api/v1'
});

const response = await client.chat.completions.create({
  model: 'nvidia/llama-3.1-nemotron-70b-instruct:free',
  messages: [
    { role: 'user', content: 'What is OpenRouter?' }
  ]
});

console.log(response.choices[0].message.content);

terminal

curl https://openrouter.ai/api/v1/chat/completions \
  -H "Authorization: Bearer YOUR_OPENROUTER_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "nvidia/llama-3.1-nemotron-70b-instruct:free",
    "messages": [
      {
        "role": "user",
        "content": "What is OpenRouter?"
      }
    ]
  }'

example.php

<?php
$apiKey = 'YOUR_API_KEY';
$url = "https://openrouter.ai/api/v1/models/nvidia/llama-3.1-nemotron-70b-instruct:free:generateContent?key=$apiKey";

$data = [
    "contents" => [
        ["parts" => [["text" => "Explain quantum mechanics"]]]
    ]
];

$ch = curl_init($url);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
curl_setopt($ch, CURLOPT_POST, true);
curl_setopt($ch, CURLOPT_POSTFIELDS, json_encode($data));
curl_setopt($ch, CURLOPT_HTTPHEADER, ['Content-Type: application/json']);

$response = curl_exec($ch);
curl_close($ch);

echo $response;
?>

main.go

package main

import (
    "context"
    "fmt"
    "log"
    "github.com/google/generative-ai-go/genai"
    "google.golang.org/api/option"
)

func main() {
    ctx := context.Background()
    client, err := genai.NewClient(ctx, option.WithAPIKey("YOUR_API_KEY"))
    if err != nil { log.Fatal(err) }
    defer client.Close()

    model := client.GenerativeModel("nvidia/llama-3.1-nemotron-70b-instruct:free")
    resp, err := model.GenerateContent(ctx, genai.Text("Explain quantum mechanics"))
    if err != nil { log.Fatal(err) }
    
    // ...
}

main.py

from openai import OpenAI

client = OpenAI(
    api_key="YOUR_OPENROUTER_KEY",
    base_url="https://openrouter.ai/api/v1"
)

response = client.chat.completions.create(
    model="deepseek/deepseek-r1:free",
    messages=[
        {"role": "user", "content": "What is OpenRouter?"}
    ]
)

print(response.choices[0].message.content)

index.js

import OpenAI from 'openai';

const client = new OpenAI({
  apiKey: 'YOUR_OPENROUTER_KEY',
  baseURL: 'https://openrouter.ai/api/v1'
});

const response = await client.chat.completions.create({
  model: 'deepseek/deepseek-r1:free',
  messages: [
    { role: 'user', content: 'What is OpenRouter?' }
  ]
});

console.log(response.choices[0].message.content);

terminal

curl https://openrouter.ai/api/v1/chat/completions \
  -H "Authorization: Bearer YOUR_OPENROUTER_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "deepseek/deepseek-r1:free",
    "messages": [
      {
        "role": "user",
        "content": "What is OpenRouter?"
      }
    ]
  }'

example.php

<?php
$apiKey = 'YOUR_API_KEY';
$url = "https://openrouter.ai/api/v1/models/deepseek/deepseek-r1:free:generateContent?key=$apiKey";

$data = [
    "contents" => [
        ["parts" => [["text" => "Explain quantum mechanics"]]]
    ]
];

$ch = curl_init($url);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
curl_setopt($ch, CURLOPT_POST, true);
curl_setopt($ch, CURLOPT_POSTFIELDS, json_encode($data));
curl_setopt($ch, CURLOPT_HTTPHEADER, ['Content-Type: application/json']);

$response = curl_exec($ch);
curl_close($ch);

echo $response;
?>

main.go

package main

import (
    "context"
    "fmt"
    "log"
    "github.com/google/generative-ai-go/genai"
    "google.golang.org/api/option"
)

func main() {
    ctx := context.Background()
    client, err := genai.NewClient(ctx, option.WithAPIKey("YOUR_API_KEY"))
    if err != nil { log.Fatal(err) }
    defer client.Close()

    model := client.GenerativeModel("deepseek/deepseek-r1:free")
    resp, err := model.GenerateContent(ctx, genai.Text("Explain quantum mechanics"))
    if err != nil { log.Fatal(err) }
    
    // ...
}

main.py

from openai import OpenAI

client = OpenAI(
    api_key="YOUR_OPENROUTER_KEY",
    base_url="https://openrouter.ai/api/v1"
)

response = client.chat.completions.create(
    model="deepseek/deepseek-r1-distill-llama-70b:free",
    messages=[
        {"role": "user", "content": "What is OpenRouter?"}
    ]
)

print(response.choices[0].message.content)

index.js

import OpenAI from 'openai';

const client = new OpenAI({
  apiKey: 'YOUR_OPENROUTER_KEY',
  baseURL: 'https://openrouter.ai/api/v1'
});

const response = await client.chat.completions.create({
  model: 'deepseek/deepseek-r1-distill-llama-70b:free',
  messages: [
    { role: 'user', content: 'What is OpenRouter?' }
  ]
});

console.log(response.choices[0].message.content);

terminal

curl https://openrouter.ai/api/v1/chat/completions \
  -H "Authorization: Bearer YOUR_OPENROUTER_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "deepseek/deepseek-r1-distill-llama-70b:free",
    "messages": [
      {
        "role": "user",
        "content": "What is OpenRouter?"
      }
    ]
  }'

example.php

<?php
$apiKey = 'YOUR_API_KEY';
$url = "https://openrouter.ai/api/v1/models/deepseek/deepseek-r1-distill-llama-70b:free:generateContent?key=$apiKey";

$data = [
    "contents" => [
        ["parts" => [["text" => "Explain quantum mechanics"]]]
    ]
];

$ch = curl_init($url);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
curl_setopt($ch, CURLOPT_POST, true);
curl_setopt($ch, CURLOPT_POSTFIELDS, json_encode($data));
curl_setopt($ch, CURLOPT_HTTPHEADER, ['Content-Type: application/json']);

$response = curl_exec($ch);
curl_close($ch);

echo $response;
?>

main.go

package main

import (
    "context"
    "fmt"
    "log"
    "github.com/google/generative-ai-go/genai"
    "google.golang.org/api/option"
)

func main() {
    ctx := context.Background()
    client, err := genai.NewClient(ctx, option.WithAPIKey("YOUR_API_KEY"))
    if err != nil { log.Fatal(err) }
    defer client.Close()

    model := client.GenerativeModel("deepseek/deepseek-r1-distill-llama-70b:free")
    resp, err := model.GenerateContent(ctx, genai.Text("Explain quantum mechanics"))
    if err != nil { log.Fatal(err) }
    
    // ...
}

main.py

from openai import OpenAI

client = OpenAI(
    api_key="YOUR_OPENROUTER_KEY",
    base_url="https://openrouter.ai/api/v1"
)

response = client.chat.completions.create(
    model="mistralai/mistral-small-24b-instruct-2501:free",
    messages=[
        {"role": "user", "content": "What is OpenRouter?"}
    ]
)

print(response.choices[0].message.content)

index.js

import OpenAI from 'openai';

const client = new OpenAI({
  apiKey: 'YOUR_OPENROUTER_KEY',
  baseURL: 'https://openrouter.ai/api/v1'
});

const response = await client.chat.completions.create({
  model: 'mistralai/mistral-small-24b-instruct-2501:free',
  messages: [
    { role: 'user', content: 'What is OpenRouter?' }
  ]
});

console.log(response.choices[0].message.content);

terminal

curl https://openrouter.ai/api/v1/chat/completions \
  -H "Authorization: Bearer YOUR_OPENROUTER_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "mistralai/mistral-small-24b-instruct-2501:free",
    "messages": [
      {
        "role": "user",
        "content": "What is OpenRouter?"
      }
    ]
  }'

example.php

<?php
$apiKey = 'YOUR_API_KEY';
$url = "https://openrouter.ai/api/v1/models/mistralai/mistral-small-24b-instruct-2501:free:generateContent?key=$apiKey";

$data = [
    "contents" => [
        ["parts" => [["text" => "Explain quantum mechanics"]]]
    ]
];

$ch = curl_init($url);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
curl_setopt($ch, CURLOPT_POST, true);
curl_setopt($ch, CURLOPT_POSTFIELDS, json_encode($data));
curl_setopt($ch, CURLOPT_HTTPHEADER, ['Content-Type: application/json']);

$response = curl_exec($ch);
curl_close($ch);

echo $response;
?>

main.go

package main

import (
    "context"
    "fmt"
    "log"
    "github.com/google/generative-ai-go/genai"
    "google.golang.org/api/option"
)

func main() {
    ctx := context.Background()
    client, err := genai.NewClient(ctx, option.WithAPIKey("YOUR_API_KEY"))
    if err != nil { log.Fatal(err) }
    defer client.Close()

    model := client.GenerativeModel("mistralai/mistral-small-24b-instruct-2501:free")
    resp, err := model.GenerateContent(ctx, genai.Text("Explain quantum mechanics"))
    if err != nil { log.Fatal(err) }
    
    // ...
}

main.py

from openai import OpenAI

client = OpenAI(
    api_key="YOUR_OPENROUTER_KEY",
    base_url="https://openrouter.ai/api/v1"
)

response = client.chat.completions.create(
    model="qwen/qwen-2.5-7b-instruct:free",
    messages=[
        {"role": "user", "content": "What is OpenRouter?"}
    ]
)

print(response.choices[0].message.content)

index.js

import OpenAI from 'openai';

const client = new OpenAI({
  apiKey: 'YOUR_OPENROUTER_KEY',
  baseURL: 'https://openrouter.ai/api/v1'
});

const response = await client.chat.completions.create({
  model: 'qwen/qwen-2.5-7b-instruct:free',
  messages: [
    { role: 'user', content: 'What is OpenRouter?' }
  ]
});

console.log(response.choices[0].message.content);

terminal

curl https://openrouter.ai/api/v1/chat/completions \
  -H "Authorization: Bearer YOUR_OPENROUTER_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "qwen/qwen-2.5-7b-instruct:free",
    "messages": [
      {
        "role": "user",
        "content": "What is OpenRouter?"
      }
    ]
  }'

example.php

<?php
$apiKey = 'YOUR_API_KEY';
$url = "https://openrouter.ai/api/v1/models/qwen/qwen-2.5-7b-instruct:free:generateContent?key=$apiKey";

$data = [
    "contents" => [
        ["parts" => [["text" => "Explain quantum mechanics"]]]
    ]
];

$ch = curl_init($url);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
curl_setopt($ch, CURLOPT_POST, true);
curl_setopt($ch, CURLOPT_POSTFIELDS, json_encode($data));
curl_setopt($ch, CURLOPT_HTTPHEADER, ['Content-Type: application/json']);

$response = curl_exec($ch);
curl_close($ch);

echo $response;
?>

main.go

package main

import (
    "context"
    "fmt"
    "log"
    "github.com/google/generative-ai-go/genai"
    "google.golang.org/api/option"
)

func main() {
    ctx := context.Background()
    client, err := genai.NewClient(ctx, option.WithAPIKey("YOUR_API_KEY"))
    if err != nil { log.Fatal(err) }
    defer client.Close()

    model := client.GenerativeModel("qwen/qwen-2.5-7b-instruct:free")
    resp, err := model.GenerateContent(ctx, genai.Text("Explain quantum mechanics"))
    if err != nil { log.Fatal(err) }
    
    // ...
}

main.py

from openai import OpenAI

client = OpenAI(
    api_key="YOUR_OPENROUTER_KEY",
    base_url="https://openrouter.ai/api/v1"
)

response = client.chat.completions.create(
    model="qwen/qwen-2.5-vl-72b-instruct:free",
    messages=[
        {"role": "user", "content": "What is OpenRouter?"}
    ]
)

print(response.choices[0].message.content)

index.js

import OpenAI from 'openai';

const client = new OpenAI({
  apiKey: 'YOUR_OPENROUTER_KEY',
  baseURL: 'https://openrouter.ai/api/v1'
});

const response = await client.chat.completions.create({
  model: 'qwen/qwen-2.5-vl-72b-instruct:free',
  messages: [
    { role: 'user', content: 'What is OpenRouter?' }
  ]
});

console.log(response.choices[0].message.content);

terminal

curl https://openrouter.ai/api/v1/chat/completions \
  -H "Authorization: Bearer YOUR_OPENROUTER_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "qwen/qwen-2.5-vl-72b-instruct:free",
    "messages": [
      {
        "role": "user",
        "content": "What is OpenRouter?"
      }
    ]
  }'

example.php

<?php
$apiKey = 'YOUR_API_KEY';
$url = "https://openrouter.ai/api/v1/models/qwen/qwen-2.5-vl-72b-instruct:free:generateContent?key=$apiKey";

$data = [
    "contents" => [
        ["parts" => [["text" => "Explain quantum mechanics"]]]
    ]
];

$ch = curl_init($url);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
curl_setopt($ch, CURLOPT_POST, true);
curl_setopt($ch, CURLOPT_POSTFIELDS, json_encode($data));
curl_setopt($ch, CURLOPT_HTTPHEADER, ['Content-Type: application/json']);

$response = curl_exec($ch);
curl_close($ch);

echo $response;
?>

main.go

package main

import (
    "context"
    "fmt"
    "log"
    "github.com/google/generative-ai-go/genai"
    "google.golang.org/api/option"
)

func main() {
    ctx := context.Background()
    client, err := genai.NewClient(ctx, option.WithAPIKey("YOUR_API_KEY"))
    if err != nil { log.Fatal(err) }
    defer client.Close()

    model := client.GenerativeModel("qwen/qwen-2.5-vl-72b-instruct:free")
    resp, err := model.GenerateContent(ctx, genai.Text("Explain quantum mechanics"))
    if err != nil { log.Fatal(err) }
    
    // ...
}

main.py

from openai import OpenAI

client = OpenAI(
    api_key="YOUR_OPENROUTER_KEY",
    base_url="https://openrouter.ai/api/v1"
)

response = client.chat.completions.create(
    model="microsoft/phi-3-medium-128k-instruct:free",
    messages=[
        {"role": "user", "content": "What is OpenRouter?"}
    ]
)

print(response.choices[0].message.content)

index.js

import OpenAI from 'openai';

const client = new OpenAI({
  apiKey: 'YOUR_OPENROUTER_KEY',
  baseURL: 'https://openrouter.ai/api/v1'
});

const response = await client.chat.completions.create({
  model: 'microsoft/phi-3-medium-128k-instruct:free',
  messages: [
    { role: 'user', content: 'What is OpenRouter?' }
  ]
});

console.log(response.choices[0].message.content);

terminal

curl https://openrouter.ai/api/v1/chat/completions \
  -H "Authorization: Bearer YOUR_OPENROUTER_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "microsoft/phi-3-medium-128k-instruct:free",
    "messages": [
      {
        "role": "user",
        "content": "What is OpenRouter?"
      }
    ]
  }'

example.php

<?php
$apiKey = 'YOUR_API_KEY';
$url = "https://openrouter.ai/api/v1/models/microsoft/phi-3-medium-128k-instruct:free:generateContent?key=$apiKey";

$data = [
    "contents" => [
        ["parts" => [["text" => "Explain quantum mechanics"]]]
    ]
];

$ch = curl_init($url);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
curl_setopt($ch, CURLOPT_POST, true);
curl_setopt($ch, CURLOPT_POSTFIELDS, json_encode($data));
curl_setopt($ch, CURLOPT_HTTPHEADER, ['Content-Type: application/json']);

$response = curl_exec($ch);
curl_close($ch);

echo $response;
?>

main.go

package main

import (
    "context"
    "fmt"
    "log"
    "github.com/google/generative-ai-go/genai"
    "google.golang.org/api/option"
)

func main() {
    ctx := context.Background()
    client, err := genai.NewClient(ctx, option.WithAPIKey("YOUR_API_KEY"))
    if err != nil { log.Fatal(err) }
    defer client.Close()

    model := client.GenerativeModel("microsoft/phi-3-medium-128k-instruct:free")
    resp, err := model.GenerateContent(ctx, genai.Text("Explain quantum mechanics"))
    if err != nil { log.Fatal(err) }
    
    // ...
}

main.py

from openai import OpenAI

client = OpenAI(
    api_key="YOUR_OPENROUTER_KEY",
    base_url="https://openrouter.ai/api/v1"
)

response = client.chat.completions.create(
    model="microsoft/phi-3-mini-128k-instruct:free",
    messages=[
        {"role": "user", "content": "What is OpenRouter?"}
    ]
)

print(response.choices[0].message.content)

index.js

import OpenAI from 'openai';

const client = new OpenAI({
  apiKey: 'YOUR_OPENROUTER_KEY',
  baseURL: 'https://openrouter.ai/api/v1'
});

const response = await client.chat.completions.create({
  model: 'microsoft/phi-3-mini-128k-instruct:free',
  messages: [
    { role: 'user', content: 'What is OpenRouter?' }
  ]
});

console.log(response.choices[0].message.content);

terminal

curl https://openrouter.ai/api/v1/chat/completions \
  -H "Authorization: Bearer YOUR_OPENROUTER_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "microsoft/phi-3-mini-128k-instruct:free",
    "messages": [
      {
        "role": "user",
        "content": "What is OpenRouter?"
      }
    ]
  }'

example.php

<?php
$apiKey = 'YOUR_API_KEY';
$url = "https://openrouter.ai/api/v1/models/microsoft/phi-3-mini-128k-instruct:free:generateContent?key=$apiKey";

$data = [
    "contents" => [
        ["parts" => [["text" => "Explain quantum mechanics"]]]
    ]
];

$ch = curl_init($url);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
curl_setopt($ch, CURLOPT_POST, true);
curl_setopt($ch, CURLOPT_POSTFIELDS, json_encode($data));
curl_setopt($ch, CURLOPT_HTTPHEADER, ['Content-Type: application/json']);

$response = curl_exec($ch);
curl_close($ch);

echo $response;
?>

main.go

package main

import (
    "context"
    "fmt"
    "log"
    "github.com/google/generative-ai-go/genai"
    "google.golang.org/api/option"
)

func main() {
    ctx := context.Background()
    client, err := genai.NewClient(ctx, option.WithAPIKey("YOUR_API_KEY"))
    if err != nil { log.Fatal(err) }
    defer client.Close()

    model := client.GenerativeModel("microsoft/phi-3-mini-128k-instruct:free")
    resp, err := model.GenerateContent(ctx, genai.Text("Explain quantum mechanics"))
    if err != nil { log.Fatal(err) }
    
    // ...
}

Free Tier Pricing & Limits

Rate Limit

Requests per minute

20 requests/minute

Daily Quota

Requests per day

50 requests/day (up to 1000 with $10 topup)

Token Limit

Tokens per minute

Shared quota

Monthly Quota

Per month limit

Use Cases

Accessing free models from multiple providers

Model comparison and A/B testing

Fallback for high-availability apps

Exploring different model capabilities

Limitations & Considerations

Limits depend on account history/topup

Community key models

Free models have lower priority during peak demand

Some models may become unavailable

Community Hub

Live

Join the discussion, share tips, and rate OpenRouter.

Quick Reactions

Add Discussion

Display Name

Comment

Comments are moderated. Be helpful and respectful.

Recent Activity

0 comments

Cookie Consent

OpenRouter

Overview

Provider Type

API Endpoint

Free Tier Highlights

Why Choose OpenRouter?

Quick Start Guide

Visit https://openrouter.ai/

Sign in with Google or GitHub

Navigate to Keys section

Create a new API key

Use with OpenAI SDK (change base_url)

Available Models

Integration Examples

Select Model

Free Tier Pricing & Limits

Rate Limit

Daily Quota

Token Limit

Monthly Quota

Use Cases

Limitations & Considerations

Community Hub

Quick Reactions

Add Discussion

Recent Activity

Ready to Get Started?

Cookie Consent

OpenRouter

Overview

Provider Type

API Endpoint

Free Tier Highlights

Why Choose OpenRouter?

Quick Start Guide

Visit https://openrouter.ai/

Sign in with Google or GitHub

Navigate to Keys section

Create a new API key

Use with OpenAI SDK (change base_url)

Available Models

Integration Examples

Select Model

Free Tier Pricing & Limits

Rate Limit

Daily Quota

Token Limit

Monthly Quota

Use Cases

Limitations & Considerations

Community Hub

Quick Reactions

Add Discussion

Recent Activity

Suggest an Edit

Ready to Get Started?