Gemini 3.1 Pro Preview

Try Gemini 3.1 Pro Preview in the Workbench

Run this model interactively, tune parameters, and compare outputs.

Model ID: gemini-3-1-pro-preview Gemini 3.1 Pro Preview is Google’s flagship multimodal reasoning model in the Gemini 3 series. It is built for complex, multi-step tasks where stronger planning, deeper synthesis, and reliable tool use are required. Some other noteworthy features of Gemini 3.1 Pro Preview include improved token efficiency, structured outputs, function calling, code execution, search grounding, and support for multimodal inputs (text, image, video, audio, and PDF).

Metric	Value
Parameter Count	Unknown
Mixture of Experts	Unknown
Context Length	1,048,576 tokens
Multilingual	Yes
Quantized*	Unknown

*Quantization is specific to the inference provider and the model may be offered with different quantization levels by other providers.

Example request

Use the Workbench as a request builder: configure parameters for this model in the UI, then open the API tab to copy the exact cURL or Python call.

curl -X POST https://hub.oxen.ai/api/ai/audio/transcriptions \
  -H "Content-Type: application/json" \
  -H "Authorization: Bearer $OXEN_API_KEY" \
  -d '{
  "model": "gemini-3-1-pro-preview",
  "audio_url": "https://example.com/audio.mp3"
}'

import os
import requests

response = requests.post(
    "https://hub.oxen.ai/api/ai/audio/transcriptions",
    headers={
        "Content-Type": "application/json",
        "Authorization": f"Bearer {os.environ['OXEN_API_KEY']}",
    },
    json={
        "model": "gemini-3-1-pro-preview",
        "audio_url": "https://example.com/audio.mp3"
    },
)
response.raise_for_status()
print(response.json())

Fetch model details

The models endpoint returns the full model object, including its json_request_schema.

curl -H "Authorization: Bearer $OXEN_API_KEY" https://hub.oxen.ai/api/ai/models/gemini-3-1-pro-preview

Request parameters

This model follows the standard OpenAI chat completions request body. See the chat completions reference for the full parameter list.

⌘I

Try Gemini 3.1 Pro Preview in the Workbench

​Example request

​Fetch model details

​Request parameters

Example request

Fetch model details

Request parameters