How much does Gemini 3.1 Pro Preview Customtools cost?

Gemini 3.1 Pro Preview Customtools costs $2.00 per 1M input tokens and $12.00 per 1M output tokens on BazaarLink. No markup over provider pricing.

What is Gemini 3.1 Pro Preview Customtools's context window?

Gemini 3.1 Pro Preview Customtools supports a 1.0M token (1,048,756) context window.

Does Gemini 3.1 Pro Preview Customtools support tool calling / function calling?

Yes, Gemini 3.1 Pro Preview Customtools supports tool calling (function calling) via the standard OpenAI tools parameter. BazaarLink passes tool definitions through transparently.

Can I send images to Gemini 3.1 Pro Preview Customtools?

Yes, Gemini 3.1 Pro Preview Customtools accepts image inputs alongside text. Use the standard OpenAI multimodal message format with image_url content parts.

Is Gemini 3.1 Pro Preview Customtools free on BazaarLink?

Gemini 3.1 Pro Preview Customtools is a paid model. BazaarLink offers a free tier on other models — see /free for the current free-tier model list.

Who provides Gemini 3.1 Pro Preview Customtools?

Gemini 3.1 Pro Preview Customtools is provided by Google. BazaarLink routes requests to Google's production inference infrastructure without modification to the request or response format.

How does Gemini 3.1 Pro Preview Customtools compare to other models?

See /models for a side-by-side table of all major models BazaarLink supports, filterable by price, context length, and capabilities.

Can I use Gemini 3.1 Pro Preview Customtools with LangChain or Vercel AI SDK?

Yes. Both LangChain (via ChatOpenAI with base_url) and Vercel AI SDK (via @ai-sdk/openai with baseURL) work out of the box — just use "google/gemini-3.1-pro-preview-customtools" as the model identifier.

Gemini 3.1 Pro Preview Customtools

Name: Gemini 3.1 Pro Preview Customtools API
Brand: Google

Gemini 3.1 Pro Preview Custom Tools is a variant of Gemini 3.1 Pro that improves tool selection behavior by preventing overuse of a general bash tool when more efficient third-party...

Pricing

Input Price

$2.0000

/ 1M tokens

NT$ 65

Output Price

$12.0000

/ 1M tokens

NT$ 388

Context Window

tokens

💱 匯率 USD/NTD = 32.34 · 不含稅 · 更新於 2026/07/22

Provider	Google
Released	2026年2月
Model ID	`google/gemini-3.1-pro-preview-customtools`

Technical specifications

Context window

1M tokens

Reasoning

Yes

Input

TextAudioImageVideoFile

Output

Text

Quick Start

Use Gemini 3.1 Pro Preview Customtools via BazaarLink API — just change the base_url:

Python

from openai import OpenAI

client = OpenAI(
    base_url="https://bazaarlink.ai/api/v1",
    api_key="sk-bl-YOUR_API_KEY",
)

response = client.chat.completions.create(
    model="google/gemini-3.1-pro-preview-customtools",
    messages=[{"role": "user", "content": "Hello!"}],
)
print(response.choices[0].message.content)

TypeScript

import OpenAI from "openai";

const client = new OpenAI({
  baseURL: "https://bazaarlink.ai/api/v1",
  apiKey: "sk-bl-YOUR_API_KEY",
});

const response = await client.chat.completions.create({
  model: "google/gemini-3.1-pro-preview-customtools",
  messages: [{ role: "user", content: "Hello!" }],
});
console.log(response.choices[0].message.content);

Why use Gemini 3.1 Pro Preview Customtools via BazaarLink?

✓USD billing (TWD-quoted) + unified invoices — no foreign credit card needed for Taiwan teams
✓OpenAI-compatible API — zero code changes required
✓Automatic failover — multi-provider redundancy for the same model
✓Chinese-language support — local team, instant help

Try Now ← All Models

Frequently Asked Questions

What is Gemini 3.1 Pro Preview Customtools?

Gemini 3.1 Pro Preview Custom Tools is a variant of Gemini 3.1 Pro that improves tool selection behavior by preventing overuse of a general bash tool when more efficient third-party...

How much does the Gemini 3.1 Pro Preview Customtools API cost?

Gemini 3.1 Pro Preview Customtools costs $2.0000 per 1K input tokens and $12.0000 per 1K output tokens when accessed through BazaarLink.

How do I use Gemini 3.1 Pro Preview Customtools with the OpenAI SDK?

Set base_url to "https://bazaarlink.ai/api/v1" and use model ID "google/gemini-3.1-pro-preview-customtools". All OpenAI SDK methods (chat.completions, embeddings, streaming) work without code changes.

What is the context window for Gemini 3.1 Pro Preview Customtools?

Gemini 3.1 Pro Preview Customtools supports a context window of 1,048,756 tokens.

Is Gemini 3.1 Pro Preview Customtools available for free?

Gemini 3.1 Pro Preview Customtools is a paid model. BazaarLink offers free trial credits on registration so you can test it without a credit card.

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