Gemini 3.1 Pro
Access Gemini 3.1 Pro through one API key. Google's next-generation model.
Google's next-generation Pro model. Advanced reasoning, coding, and multimodal capabilities with a 1M context window.
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 Gemini 3.1 Pro respond in real time.
Maximum tokens in the response.
Real-time tokens
Context Window
1.0M tokens
Max Output
8K tokens
Input Price
$2.00 / 1M tokens
Output Price
$12.00 / 1M tokens
Strengths
Quick start
Copy this snippet and start making calls with Gemini 3.1 Pro.
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": "google/gemini-3.1-pro-preview",
"messages": [
{
"role": "user",
"content": "Explain API gateways in 2 sentences."
}
],
"maxTokens": 256
}),
});
const { data } = await res.json();
console.log(data.message.content);Why use Gemini 3.1 Pro 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
Google's next-generation Pro model. Advanced reasoning, coding, and multimodal capabilities with a 1M context window.
Input tokens cost $2.00 per 1M tokens and output tokens cost $12.00 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.
Gemini 3.1 Pro supports a 1.0M token context window with up to 8K output tokens per request.
Ready to use Gemini 3.1 Pro?
$5 free credit on signup. No credit card required. Pay per call.
Explore more models
Gemini 2.5 Flash
GoogleAccess Gemini 2.5 Flash through one API key. Google's fastest model with 1M context.
Gemini 2.5 Pro
GoogleAccess Gemini 2.5 Pro through one API key. Google's most capable model with 1M context.
Gemini 3 Flash
GoogleAccess Gemini 3 Flash through one API key. Google's next-generation fast model.
