GooglePaidOperational
Gemini 3.1 Pro Preview Customtools
API model name: gemini-3.1-pro-preview-customtools
Gemini 3.1 Pro Preview Customtools is Google's chat model, served on the Api.Airforce unified API. It is priced at $1.77 per million input tokens and $10.68 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
What is Gemini 3.1 Pro Preview Customtools used for?
- Chatbots & assistants — conversational AI, drafting, summarizing and Q&A.
Gemini 3.1 Pro Preview Customtools vs. similar models
| Model | Intelligence | Context | Input / 1M | Output / 1M |
|---|---|---|---|---|
| Gemini 3.1 Pro Preview Customtools | — | — | $1.77 | $10.68 |
| Gemini 2.5 Flash | 20.6 | 1M | $0.40 | $2.50 |
| Gemini 2.5 Pro | 34.6 | 2M | $0.70 | $2.20 |
| Gemini 3 Flash | 35.0 | 1M | $0.39 | $2.37 |
Prices are Api.Airforce pay-as-you-go rates per 1M tokens. Context is the maximum input length.
Related models
Gemini 2.5 FlashGoogle · $0.40 / 1MGemini 2.5 ProGoogle · $0.70 / 1MGemini 3 FlashGoogle · $0.39 / 1MGemini 3 ProGoogle · $0.90 / 1MGemini 3.1 Flash LiteGoogle · $0.14 / 1MGemini 3.1 ProGoogle · $1.00 / 1MGemini 3.5 FlashGoogle · $1.20 / 1MGemma3 270mGoogle · FreeNano Banana 2Google · $130.00 / 1MNano Banana ProGoogle · $130.00 / 1MGrok 4.1 Fast ReasoningxAI · $0.50 / 1MGrok 4.2xAI · $1.47 / 1M
Gemini 3.1 Pro Preview Customtools — frequently asked questions
- How much does Gemini 3.1 Pro Preview Customtools cost?
- Gemini 3.1 Pro Preview Customtools is billed pay-as-you-go at $1.77 per 1M input tokens and $10.68 per 1M output tokens. There is no subscription — you only pay for what you use.
- What can Gemini 3.1 Pro Preview Customtools do?
- Gemini 3.1 Pro Preview Customtools is Google's chat model, accessible through the Api.Airforce API.
- Is Gemini 3.1 Pro Preview Customtools free to use?
- Gemini 3.1 Pro Preview Customtools 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 Customtools via the API?
- Gemini 3.1 Pro Preview Customtools is OpenAI-compatible. Point any OpenAI SDK at https://api.airforce/v1 and pass the model ID gemini-3.1-pro-preview-customtools with your Api.Airforce API key.
- Who makes Gemini 3.1 Pro Preview Customtools?
- Gemini 3.1 Pro Preview Customtools 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 Customtools via the API
OpenAI-compatible — point any OpenAI SDK at https://api.airforce/v1 and pass gemini-3.1-pro-preview-customtools as the model.
cURL
curl https://api.airforce/v1/chat/completions \
-H "Authorization: Bearer $AIRFORCE_API_KEY" \
-H "Content-Type: application/json" \
-d '{
"model": "gemini-3.1-pro-preview-customtools",
"messages": [{ "role": "user", "content": "Hello!" }]
}'Python
from openai import OpenAI
client = OpenAI(base_url="https://api.airforce/v1", api_key="$AIRFORCE_API_KEY")
r = client.chat.completions.create(
model="gemini-3.1-pro-preview-customtools",
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-customtools",
messages: [{ role: "user", content: "Hello!" }],
});
console.log(r.choices[0].message.content);