VARIANT · Google / Gemini

gemini-3.1-pro-preview API

Google / Gemini

透過 RunAPI 使用 Gemini 系列的 gemini-3.1-pro-preview。按次計費，無訂閱費，失敗的生成不收費。

可直接上線 · text · 可商用

runapi.ai

# Base URL
https://runapi.ai

# Endpoints
POST /v1/chat/completions
POST /v1/responses
POST /v1/messages
POST /v1beta/models/gemini-3.1-pro-preview:generateContent
POST /v1beta/models/gemini-3.1-pro-preview:streamGenerateContent

curl https://runapi.ai/v1/chat/completions \
  -H "Authorization: Bearer $RUNAPI_KEY" \
  -H "Content-Type: application/json" \
  -d '{
  "model": "gemini-3.1-pro-preview",
  "messages": [
    {
      "role": "user",
      "content": "Analyze this codebase and suggest three performance improvements with before/after examples."
    }
  ]
}'

from openai import OpenAI

client = OpenAI(
    base_url="https://runapi.ai/v1",
    api_key="your-runapi-key"
)

response = client.chat.completions.create(
    model="gemini-3.1-pro-preview",
    messages=[{"role": "user", "content": "Analyze this codebase and suggest three performance improvements with before/after examples."}]
)

import OpenAI from "openai";

const client = new OpenAI({
  baseURL: "https://runapi.ai/v1",
  apiKey: "your-runapi-key"
});

const response = await client.chat.completions.create({
  model: "gemini-3.1-pro-preview",
  messages: [{ role: "user", content: "Analyze this codebase and suggest three performance improvements with before/after examples." }]
});

https://runapi.ai 5 endpoints

切換 variant

gemini-2.5-flash gemini-2.5-pro gemini-3-flash-preview gemini-3.5-flash

OVERVIEW

gemini-3.1-pro-preview 在 Gemini 系列中，兼顧品質與成本的最佳平衡。

以美元按次計費
生成失敗不收費
模型支援時可串流輸出
Model skill setup

PRICING

價格

失敗的生成不收費

Chat completion

Input $1.00-$2.00 / 1M tokens

Output $6.00-$9.00 / 1M tokens

Prompt < 200K · Input $1.00

Prompt < 200K · Cached input $0.10

Prompt < 200K · Output $6.00

Prompt >= 200K · Input $2.00

Prompt >= 200K · Cached input $0.20

Prompt >= 200K · Output $9.00

規格表

技術細節

Model ID	gemini-3.1-pro-preview
供應商	Google
模態	text
任務類型	synchronous
計費單位	1K tokens
API endpoint	/v1/chat/completions
	/v1/responses
	/v1/messages
	/v1beta/models/gemini-3.1-pro-preview:generateContent
	/v1beta/models/gemini-3.1-pro-preview:streamGenerateContent
商用授權	是 — 已透過 API 包含
目錄狀態	可直接上線

SKILLS

快速開始 — gemini-3.1-pro-preview

相同格式 · variant 固定在 model 中

Endpoint	Protocol
/v1/chat/completions	OpenAI compatible
/v1/responses	OpenAI Responses
/v1/messages	Anthropic compatible
/v1beta/models/gemini-3.1-pro-preview:generateContent	Gemini generateContent
/v1beta/models/gemini-3.1-pro-preview:streamGenerateContent	Gemini streamGenerateContent