How to use Google's latest Gemini Pro for free

Written by Jessica - December 15, 2023


Google promised to open up the Gemini Pro API, and now it's finally here. Starting from today, developers can use the Gemini Pro API to build applications using Google's free web development tool, AI Studio (formerly known as Makersuite). Google also mentioned that they will further optimize the Gemini model based on user feedback in the coming weeks.

The free version of Gemini Pro allows a maximum of 60 queries per minute. There is also a pay-as-you-go version with fewer limitations, which Google claims to have a competitive price to compete with OpenAI. Currently, the pricing for the paid version of Gemini Pro is $0.00025 per thousand characters, $0.0025 per image, and $0.0005 per thousand characters for output. Additionally, Google will use the inputs and outputs of the free version of Google Pro API to improve the model's capabilities, but they promise not to use the paid version for training and product improvement.


Here is a step-by-step tutorial on how to use the Gemini Pro API for free through Google Cloud's Vertex AI platform.


First, visit the Google Developers Platform: https://ai.google.dev/pricing




We choose the free version.

After checking the privacy agreement, click "Continue".


Click to get the API Key.


The key generated after clicking can be used in our calling process.

We tested it with our own API Key based on the official demo example and found no issues at all. Now we can happily start using it.



  1. Mastering Cue Words: A Guide to Effective Prompt Engineering for DeepSeek R1 and OpenAI Models

    In the rapidly evolving landscape of artificial intelligence, large language models (LLMs) like DeepSeek R1 and OpenAI's models have emerged as powerful tools for a wide array of applications. Howeve

  2. Enhancing Video Production: The Top 8 AI Video Editing Software in Review

    Video editing is a multifaceted challenge, requiring not just the right tools but also time and skill to produce content that captivates. In today's fast-paced digital environment where content is kin

  3. Stay Ahead of the Curve: The Ultimate Guide to the Top 11 AI Video Generators in 2024

    The relentless march of technological innovation continues to reshape the content creation landscape, particularly in the realm of video generation. AI video generators have emerged as a pivotal break

  4. Enhanced Deep Dive into Google Bard vs. ChatGPT: Revolutionizing AI Interactions

    The fascinating turf of artificial intelligence (AI) has witnessed two formidable giants, Google Bard and ChatGPT, emerge as harbingers of a new era in human-text interaction. Notably, Google Bard spr

  5. The Definitive Guide to the Best AI Image Detectors of 2024

    AI image detection has become a vital tool in the era where artificial intelligence has deeply integrated into content creation. As a result, distinguishing between human-made and AI-generated images