LLM API: 200+ AI Models with One API
Access all the AI models you need through a single, reliable API
// Example API request
const response = await fetch('https://api.llmapi.dev/api/chat/completions', {
method: 'POST',
headers: {
'Content-Type': 'application/json',
'Authorization': 'Bearer YOUR_API_KEY'
},
body: JSON.stringify({
model: 'openai/gpt-4-turbo',
messages: [
{ role: 'user', content: 'Hello, how can you help me?' }
]
})
});
const data = await response.json();
console.log(data.choices[0].message.content);










Explore models from OpenAI, Anthropic, Google, Meta, xAI, Mistral, Alibaba & more
253+ AI Models

GPT-4 Turbo
OpenAI

GPT-4
OpenAI

GPT-4 Vision
OpenAI

GPT-3.5 Turbo
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GPT-3.5 Turbo 16k
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Whisper v3
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Text-Embedding-3-Large
OpenAI

Text-Embedding-3-Small
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TTS-1
OpenAI
Feature Packed
OpenAI SDK Compatible
Fully compatible with the OpenAI SDK in every programming language. Drop-in replacement - no code changes required.
import OpenAI from 'openai';
const openai = new OpenAI({
baseURL: 'https://api.llmapi.dev/api/',
apiKey: 'YOUR_API_KEY'
});
// Works with any OpenAI SDK method
const response = await openai.chat.completions.create({
model: 'gpt-4',
messages: [{ role: 'user', content: 'Hello!' }]
});
Infinite Scalability
Scale from prototype to production without worrying about infrastructure. Pay only for what you use.

From API Portal to Live
+ Try Yourself
Get started in minutes with our simple integration process. Access all models through a unified API with consistent response formats.
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Frequently Asked Questions
Everything you need to know about LLM API