Google: Gemini 3.1 Pro Preview
Gemini 3.1 Pro Preview is Google’s frontier reasoning model, delivering enhanced software engineering performance, improved agentic reliability, and more efficient token usage across complex workflows. Building on the multimodal foundation...
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Specifications
| Context Window | 1M |
| Modalities | text |
| Input | $2.40 / M tokens |
| Output | $14.40 / M tokens |
| Status | available |
| Category | third-party |
| Model ID | google/gemini-3.1-pro-preview |
Quick Start
TypeScript
import OpenAI from 'openai'
const client = new OpenAI({
apiKey: process.env.HANZO_API_KEY,
baseURL: 'https://api.hanzo.ai/v1'
})
const response = await client.chat.completions.create({
model: 'google/gemini-3.1-pro-preview',
messages: [{ role: 'user', content: 'Hello!' }]
})
console.log(response.choices[0].message.content)Python
from openai import OpenAI
client = OpenAI(
api_key=os.environ["HANZO_API_KEY"],
base_url="https://api.hanzo.ai/v1"
)
response = client.chat.completions.create(
model="google/gemini-3.1-pro-preview",
messages=[{"role": "user", "content": "Hello!"}]
)
print(response.choices[0].message.content)cURL
curl https://api.hanzo.ai/v1/chat/completions \
-H "Content-Type: application/json" \
-H "Authorization: Bearer $HANZO_API_KEY" \
-d '{
"model": "google/gemini-3.1-pro-preview",
"messages": [{"role": "user", "content": "Hello!"}]
}'Go
package main
import (
"context"
"fmt"
"os"
"github.com/sashabaranov/go-openai"
)
func main() {
cfg := openai.DefaultConfig(os.Getenv("HANZO_API_KEY"))
cfg.BaseURL = "https://api.hanzo.ai/v1"
client := openai.NewClientWithConfig(cfg)
resp, _ := client.CreateChatCompletion(context.Background(),
openai.ChatCompletionRequest{
Model: "google/gemini-3.1-pro-preview",
Messages: []openai.ChatCompletionMessage{
{Role: openai.ChatMessageRoleUser, Content: "Hello!"},
},
},
)
fmt.Println(resp.Choices[0].Message.Content)
}Use Google: Gemini 3.1 Pro Preview via Hanzo AI
One API key. Every major model. OpenAI-compatible. Start free.