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Gemini 3 Pro PreviewGemini 3 Pro Preview

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Gemini 3 Pro Preview

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Top Reasoning

PhD-Level Problem Solving

Handles complex math, science, and logic with 91.9% on GPQA Diamond.

Multimodal Power

Process Video Images Docs

Supports up to 1-hour videos and high-res media in Gemini 3 Pro Preview API.

Agentic Coding

Build Multi-Step Agents

Executes long-horizon tasks and precise tool calls in Gemini 3 Pro Preview model.

Examples

See what Gemini 3 Pro Preview can create

Copy any prompt below and try it yourself in the playground.

Code Review

“Review this Python function for bugs, optimize for speed, and suggest tests: def fibonacci(n): if n <= 1: return n else: return fibonacci(n-1) + fibonacci(n-2)”

Data Synthesis

“Synthesize insights from sales data across Q1-Q4, identify trends, and forecast Q1 next year with reasoning steps.”

Tech Explanation

“Explain quantum entanglement to a high school student using simple analogies, then derive Bell's inequality mathematically.”

UI Prototype

“Generate React code for a dynamic dashboard with charts, filters, and real-time updates from mock API data.”

For Developers

A few lines of code.
Reasoning. Three lines.

ModelsLab handles the infrastructure: fast inference, auto-scaling, and a developer-friendly API. No GPU management needed.

  • Serverless: scales to zero, scales to millions
  • Pay per token, no minimums
  • Python and JavaScript SDKs, plus REST API
API Documentation 
import requests


response = requests.post(
    "https://modelslab.com/api/v7/llm/chat/completions",
    json={
  "key": "YOUR_API_KEY",
  "prompt": "",
  "model_id": ""
}
)
print(response.json())

FAQ

Common questions about Gemini 3 Pro Preview

Read the docs

Gemini 3 Pro Preview API provides access to Google's advanced LLM for reasoning and multimodal tasks. It outperforms prior models on benchmarks like LMArena. Use it for agentic workflows and coding.

It tops charts with 1501 Elo on LMArena and 37.5% on Humanity’s Last Exam. Excels in math at 23.4% MathArena Apex. Ideal as Gemini 3 Pro Preview alternative.

Processes videos up to 1 hour, images, and docs with media resolution control. Scores 81% on MMMU-Pro. Supports function responses with multimodal objects.

Yes, with streaming, thought signatures, and multi-step execution. Optimized for agentic use cases. Handles complex tool use reliably.

This API offers direct access to the preview model without Google restrictions. Matches capabilities in reasoning and context windows. Integrates via standard LLM endpoints.

Supports massive context for long documents and videos. Improved long-context understanding over Gemini 2.5 Pro. Processes up to 10 videos per prompt.

Ready to create?

Start generating with Gemini 3 Pro Preview on ModelsLab.

Try Gemini 3 Pro PreviewAPI Documentation