What platforms does Prankgpt support?

Prankgpt is available on Web App.

What are the limitations of Prankgpt?

Only two voices are offered, which limits variety once the novelty wears off. No pricing, usage limits, or call quotas are published on the homepage. No consent, AI disclosure, or abuse safeguards are visible, which is a real risk for prank calls.

Prankgpt

Name: Prankgpt
Author: Prankgpt

AI voices that phone your friends and say the script you wrote

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Screenshot of Prankgpt, AI voices that phone your friends and say the script you wrote

What is Prankgpt?

Prankgpt is a prank calls tool. A minimal web tool that places AI voice calls to a number you enter, using one of two synthetic personas and a free text prompt to steer the conversation. Built on Vocode, with voices from Rime Labs and Google Cloud.

PrankGPT is a browser based prank calling tool. You supply a phone number, pick one of two synthetic voices, and type a prompt describing what the AI should talk about. The service then places an outbound call and lets a language model carry the conversation according to your instructions. There is no recording studio, no impressionist, and no second phone: the joke is generated live on the line. The interface is deliberately short. A country selector sits above the phone number field, currently showing the United States, then a voice picker with Marv (described on the site as the original evil prankbot) and Zephyr (a gen Z persona voiced by Rime). The final box takes free text instructions that steer the topic of the call. One button starts the dial. Because the prompt is open ended, the same setup can produce a fake customer service agent, a confused relative, or a robotic survey caller, depending on what you write. Under the hood the project is built on Vocode, an open source library for voice based LLM applications, with voices supplied by Rime Labs and Google Cloud. That lineage explains what the product is: a thin, demo style wrapper around speech synthesis and conversational AI rather than a polished contact center platform. It is best suited to people who want a quick, disposable gag, and it will feel limited to anyone expecting call scheduling, contact lists, or analysis of how the call went. The honest framing matters here. Prank calls sit in a legal and social grey zone in many jurisdictions, and the tool offers no consent flow, no disclosure that the caller is an AI, and no visible rate limits or abuse controls on the homepage. Compared with general voice agents aimed at business use, PrankGPT trades configuration depth for instant setup. Treat it as a novelty, keep targets to friends who will laugh, and check local rules on recording and impersonation before dialing.

How do you use Prankgpt?

1Open the PrankGPT homepage
Load the site in a browser. The whole tool sits on a single page with a three step form and a start button at the bottom.
2Enter the target phone number
Type the number you want the AI to dial into the first field. Check the country selector, which defaults to United States, before submitting.
3Pick a voice persona
Choose Marv for a darker, classic prankbot delivery or Zephyr for a younger gen Z tone powered by Rime. The voice shapes how the script lands.
4Write the conversation prompt
Describe what the AI should talk about in plain language: a role, a topic, and any constraints on how it should respond. The prompt is the entire script.
5Start the call and listen
Press Start call to place the outbound call. Stay on the page to follow the exchange, since no transcript or recording feature is advertised.

Pros and cons

Pros

Setup takes three fields and one button, so a call can be launched in under a minuteAI
The free text prompt gives wide latitude over the topic and tone of the conversationAI
Two distinct voice personas (Marv and Zephyr) cover different comedic registersAI
Runs entirely in the browser with no install or account friction described on the pageAI
Built on the open source Vocode library, so the underlying stack is inspectableAI

Cons

Only two voices are offered, which limits variety once the novelty wears offAI
No pricing, usage limits, or call quotas are published on the homepageAI
No consent, AI disclosure, or abuse safeguards are visible, which is a real risk for prank callsAI
Country coverage appears narrow, with only the United States shown in the selectorAI
No call history, scheduling, or transcripts are described, so results are hard to reviewAI

How much does Prankgpt cost?

Features

Three inputs drive everything: a phone number field with a country selector, a choice between the Marv and Zephyr voices, and a free text prompt that tells the AI what to discuss. A single Start call button places the outbound call. The site states the project is built with Vocode and that voices come from Rime Labs and Google Cloud.

Frequently asked questions about Prankgpt

How do you use Prankgpt?
The walkthrough on this page covers 5 steps: 1. Open the PrankGPT homepage 2. Enter the target phone number 3. Pick a voice persona 4. Write the conversation prompt 5. Start the call and listen.
What platforms does Prankgpt support?
Prankgpt is available on Web App.
What are the limitations of Prankgpt?
Only two voices are offered, which limits variety once the novelty wears off. No pricing, usage limits, or call quotas are published on the homepage. No consent, AI disclosure, or abuse safeguards are visible, which is a real risk for prank calls.