GPT-4o
Access GPT-4o through one API key. Flagship reasoning and multimodal capabilities.
OpenAI's flagship multimodal model. Strong reasoning, vision capabilities, and broad general knowledge.
No credit card required. Takes 30 seconds.
2,400+
Developers
1.2M+
API calls served
100+
Endpoints
$0.01
Per call
Yep, that's it.
Try it live
Send a message and see GPT-4o respond in real time.
Maximum tokens in the response.
Real-time tokens
Context Window
128K tokens
Max Output
16K tokens
Input Price
$2.50 / 1M tokens
Output Price
$10.00 / 1M tokens
Strengths
Quick start
Copy this snippet and start making calls with GPT-4o.
const res = await fetch('https://api.yepapi.com/v1/ai/chat', {
method: 'POST',
headers: {
'x-api-key': 'YOUR_API_KEY',
'Content-Type': 'application/json',
},
body: JSON.stringify({
"model": "openai/gpt-4o",
"messages": [
{
"role": "user",
"content": "Explain API gateways in 2 sentences."
}
],
"maxTokens": 256
}),
});
const { data } = await res.json();
console.log(data.message.content);Why use GPT-4o through YepAPI?
What developers say
“Switched from SerpAPI and cut our SERP costs by 80%. Same data quality, way simpler billing.”
“One API key for AI models, SERP data, and web scraping. Saved us from managing 4 separate providers.”
“The $5 free credit let us prototype our entire rank tracking feature before committing. No other API does that.”
Frequently asked questions
OpenAI's flagship multimodal model. Strong reasoning, vision capabilities, and broad general knowledge.
Input tokens cost $2.50 per 1M tokens and output tokens cost $10.00 per 1M tokens through YepAPI. No monthly minimums — you only pay for what you use.
Sign up for a free API key, then send requests to the /v1/ai/chat endpoint.
GPT-4o supports a 128K token context window with up to 16K output tokens per request.
Ready to use GPT-4o?
$5 free credit on signup. No credit card required. Pay per call.
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