Gemini 3.1 Pro
Google’s Pro model: reads video, audio, images and PDFs in one million-token window.
About Gemini 3.1 Pro
Gemini 3.1 Pro takes more kinds of input than any other model here: text, images, audio, video and PDFs, in a context of about a million tokens. Hand it an hour of meeting recording or a long scanned report and ask questions across all of it. It is a strong reasoner too — 77.1% on ARC-AGI-2 at launch, more than double Gemini 3 Pro — and scored 80.6% on SWE-Bench Verified.
Google still labels it a preview, eight months on, which means it can change under you. Its knowledge stops in January 2025, the oldest of the frontier models here, and the newer Gemini Flash releases now beat it on some agent tests.
Where it’s strong
Questions across video, audio and long PDFs at once.
Abstract reasoning and science problems.
Understanding a large codebase in one pass.
Where to be careful
Still a preview model, and Google warns it may change.
Its knowledge stops at January 2025.
Answers are capped at about 65K tokens, half what Claude and GPT-6 can write.
Price
For scale: 1,000 requests of about 3,000 tokens in and 1,000 out cost $20.70 — a long prompt and a page of answer each. Every rate is published and stays the same from one request to the next. See every model.
Specs
gemini-3.1-proCall it
Use the OpenAI SDK you already have — point it at Roar AI and name the model. Read the docs.
from openai import OpenAI
client = OpenAI(base_url="https://api.roar-ai.com/v1", api_key="roar_live_…")
reply = client.chat.completions.create(
model="gemini-3.1-pro",
messages=[{"role": "user", "content": "Summarise this contract in plain English."}],
)Compare Gemini 3.1 Pro
Questions
How much does Gemini 3.1 Pro cost?
Input is $2.30 per 1M tokens; output is $13.80 per 1M tokens. For scale, 1,000 requests of about 3,000 tokens in and 1,000 out cost $20.70. The rate is published and does not change from one request to the next.
Can I use Gemini 3.1 Pro alongside other models?
Yes. Every model on Roar AI is on the same API key and the same monthly invoice, so switching from Gemini 3.1 Pro to another model is a change to one word in your code.
Is Gemini 3.1 Pro open source?
No. Google does not publish the weights, so it is only available through an API like this one.