GooglePaidOperational
Gemini 3.1 Pro Preview R
API model name: gemini-3.1-pro-preview-r
Gemini 3.1 Pro Preview R is Google's chat model, served on the Api.Airforce unified API. Capabilities include Reasoning. It is priced at $0.26 per million input tokens and $1.59 per million output tokens. Access it through the OpenAI-compatible API with one key, alongside 100+ other models on Api.Airforce.
Pricing
Specifications
- Provider
- Type
- chat model
Capabilities
Reasoning
What is Gemini 3.1 Pro Preview R used for?
- Chatbots & assistants — conversational AI, drafting, summarizing and Q&A.
- Complex reasoning — math, coding and step-by-step problem solving.
Gemini 3.1 Pro Preview R vs. similar models
| Model | Intelligence | Context | Input / 1M | Output / 1M |
|---|---|---|---|---|
| Gemini 3.1 Pro Preview R | — | — | $0.26 | $1.59 |
| [SP]gemini 2.5 Pro | — | — | $3.97 | $0.02 |
| [SP]gemini 3.1 Pro Preview | — | — | $3.97 | $0.02 |
| [SP]gemini 3.5 Flash | — | — | $13.27 | $0.02 |
Prices are Api.Airforce pay-as-you-go rates per 1M tokens. Context is the maximum input length.
Related models
[SP]gemini 2.5 ProGoogle · $3.97 / 1M[SP]gemini 3.1 Pro PreviewGoogle · $3.97 / 1M[SP]gemini 3.5 FlashGoogle · $13.27 / 1M[SP]gemini 3.6 FlashGoogle · $3.97 / 1MGemini 2.0 FlashGoogle · $0.13 / 1MGemini 2.0 Flash 001Google · $0.13 / 1MGemini 2.0 Flash LiteGoogle · $0.09 / 1MGemini 2.0 Flash Lite 001Google · $57.41 / 1MGemini 2.5 Computer Use Preview 10Google · $57.41 / 1MGemini 2.5 FlashGoogle · $0.53 / 1MGemini 2.5 Flash Image PreviewGoogle · $0.07 / 1MGemini 2.5 Flash Image TokenGoogle · $0.33 / 1M
Gemini 3.1 Pro Preview R — frequently asked questions
- How much does Gemini 3.1 Pro Preview R cost?
- Gemini 3.1 Pro Preview R is billed pay-as-you-go at $0.26 per 1M input tokens and $1.59 per 1M output tokens. There is no subscription — you only pay for what you use.
- What can Gemini 3.1 Pro Preview R do?
- Gemini 3.1 Pro Preview R supports Reasoning.
- Is Gemini 3.1 Pro Preview R free to use?
- Gemini 3.1 Pro Preview R is a paid, pay-as-you-go model — no subscription, you are only charged for usage.
- How do I use Gemini 3.1 Pro Preview R via the API?
- Gemini 3.1 Pro Preview R is OpenAI-compatible. Point any OpenAI SDK at https://api.airforce/v1 and pass the model ID gemini-3.1-pro-preview-r with your Api.Airforce API key.
- Who makes Gemini 3.1 Pro Preview R?
- Gemini 3.1 Pro Preview R is Google's chat model, served through the unified Api.Airforce gateway alongside 100+ other models.
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Use Gemini 3.1 Pro Preview R via the API
OpenAI-compatible — point any OpenAI SDK at https://api.airforce/v1 and pass gemini-3.1-pro-preview-r as the model.
cURL
curl https://api.airforce/v1/chat/completions \
-H "Authorization: Bearer $AIRFORCE_API_KEY" \
-H "Content-Type: application/json" \
-d '{
"model": "gemini-3.1-pro-preview-r",
"messages": [{ "role": "user", "content": "Hello!" }]
}'Python
from openai import OpenAI
client = OpenAI(base_url="https://api.airforce/v1", api_key="$AIRFORCE_API_KEY")
r = client.chat.completions.create(
model="gemini-3.1-pro-preview-r",
messages=[{"role": "user", "content": "Hello!"}],
)
print(r.choices[0].message.content)JavaScript
import OpenAI from "openai";
const client = new OpenAI({ baseURL: "https://api.airforce/v1", apiKey: process.env.AIRFORCE_API_KEY });
const r = await client.chat.completions.create({
model: "gemini-3.1-pro-preview-r",
messages: [{ role: "user", content: "Hello!" }],
});
console.log(r.choices[0].message.content);