Written reply
Enter your message in the Prompt box and a text reply comes back.
Ask and write
Gemini 3.1 Pro preview with enhanced tool-calling support.
Opens the Agent studio with Gemini 3.1 Pro Preview (Custom Tools) ready to use. You will need a free account to run it.


What it makes
Ask and write
Answers questions and writes text in a conversation.
What you need
What you get
A written reply
Gemini 3.1 Pro Preview (Custom Tools) is the Gemini 3.1 Pro preview with enhanced tool-calling support. You write a message and get a text reply.
Here you set one option: your message in the Prompt box. Only 1 input file fits in a run.
Gemini 3.1 Pro Preview is a separate model with the same Prompt box and file limit, priced at 2060 credits. This Custom Tools model costs about 80 credits per run. Use it when you want a written answer, such as an email draft or a meeting agenda.
Same job: ask and write. Compare before you choose.
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Enter your message in the Prompt box and a text reply comes back.
A run accepts at most 1 input file.
Choose Gemini 3.1 Pro Preview (Custom Tools) in the text generation models.
Type your question or task into the Prompt box.
Start the run and read the text reply.
Describe who the email is for and what it should say, then read the draft.
Describe the meeting and its topics, then read the agenda that comes back.
Quick answers to help you get the most out of Gemini 3.1 Pro Preview (Custom Tools) in FunAI Studio.