Gemini 3.1 Pro Preview API
google/gemini-3.1-pro-preview
Call Gemini 3.1 Pro Preview through UberLLM’s OpenAI-compatible API — from $0.6600/M input and $3.96/M output, routed automatically to the cheapest healthy seller. Google · 1,000,000 token context. Fee included.
Gemini 3.1 Pro Preview pricing
- Input
- $0.66
- Output
- $3.96
- Cached input
- $0.066
- Input
- $2.20
- Output
- $13.20
- Cached input
- $0.22
| Provider | Input | Output | Cached input |
|---|---|---|---|
| OpenRouter | $2.00 | $12.00 | $0.20 |
| Venice AI | $2.50 | $15.00 | $0.50 |
| $2.50 | $15.00 | $0.50 |
UberLLM routes every request to the cheapest healthy seller for this model. The price shown includes UberLLM’s 10% fee.
How to use Gemini 3.1 Pro Preview with the OpenAI SDK
Already using the OpenAI SDK? Change one line — the base URL — and call Gemini 3.1 Pro Preview with your existing code. Anthropic SDKs work against https://api.uberllm.dev/v1/messages.
from openai import OpenAI
client = OpenAI(
base_url="https://api.uberllm.dev/v1",
api_key="ull_your_key_here",
)
resp = client.chat.completions.create(
model="google/gemini-3.1-pro-preview",
messages=[{"role": "user", "content": "Hello!"}],
)
print(resp.choices[0].message.content)Gemini 3.1 Pro Preview API — FAQ
How much does the Gemini 3.1 Pro Preview API cost?
Gemini 3.1 Pro Preview is listed from $0.6600 per million input tokens and $3.96 per million output tokens through UberLLM, which routes each request to the cheapest healthy seller on a live marketplace and bills the price shown, which includes UberLLM's 10% fee.
How do I call Gemini 3.1 Pro Preview via API?
Use any OpenAI-compatible SDK: set the base URL to https://api.uberllm.dev/v1, your UberLLM API key, and model "google/gemini-3.1-pro-preview". Anthropic SDKs work via https://api.uberllm.dev/v1/messages.
Is Gemini 3.1 Pro Preview OpenAI-compatible on UberLLM?
Yes. Every model on UberLLM — including Gemini 3.1 Pro Preview — is served through one OpenAI-compatible endpoint, so you change only the base URL and key.