Gemini 3.1 Pro

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Gemini 3.1 Pro is Now Live on CometAPI: What it is and how to access - CometAPI

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Gemini 3.1 Pro is Now Live on CometAPI: What it is and how to access

The Gemini 3.1 Pro is now available on CometAPI, and you can start using it through CometAPI's services—at a more affordable launch price than the official price. CometAPI already exposes the Gemini 3 family and provides an OpenAI-compatible path to call those models from a single unified gateway; that makes it quick to experiment with Gemini models using existing OpenAI SDKs

AnnaAI model and API research team

Updated Sep 3, 2026 4 min read

Gemini 3.1 Pro is Now Live on CometAPI: What it is and how to access

Use this pattern

Make the first API call.

from openai import OpenAI

client = OpenAI(
    api_key="YOUR_COMETAPI_KEY",
    base_url="https://api.cometapi.com/v1",
)

response = client.chat.completions.create(
    model="gpt-5-mini",
    messages=[{"role": "user", "content": "Build this workflow."}],
)

print(response.choices[0].message.content)

The Gemini 3.1 Pro is now available on CometAPI, and you can start using it through CometAPI's services—at a more affordable launch price than the official price. CometAPI already exposes the Gemini 3 family and provides an OpenAI-compatible path to call those models from a single unified gateway; that makes it quick to experiment with Gemini models using existing OpenAI SDKs

What is Gemini 3.1 Pro? (Why does this matter?)

Gemini 3.1 Pro refers to a point-release / preview iteration in the Gemini-3 family — the same flagship model family from Google that powers Gemini 3 Pro and related "Flash" variants. Gemini 3.x builds focus on deeper multimodal reasoning (text + images + video), higher token/context windows, improved code generation ("vibe coding" and agent workflows), and incremental performance/efficiency improvements over the initial Gemini 3 Pro release. The Gemini 3 family is now widely available across Google’s APIs and cloud offerings.

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Published on Feb 19, 2026

Last updated Sep 3, 2026

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Reviewed for clarity, source attribution and current API terminology.

Gemini 3.1 Pro

Gemini 3.1 Pro

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Gemini 3.1 Pro is Now Live on CometAPI: What it is and how to access

Make the first API call.

What is Gemini 3.1 Pro? (Why does this matter?)

Connect this article to the next decision.

Key technical highlights (what the model delivers)

Benchmark of Gemini 3.1 Pro

vs Gemini 3.0 pro：

Is CometAPI offering Gemini 3 / 3 Pro / 3.1?

Step-by-step: quick checklist to get started