by VoiceshardVoiceshard-operatedCastor is one of xAI's 28 built-in Grok TTS voices (male voice). It can speak 20 languages. Generate speech with it right here.
Grok TTS voices are generated through xAI's API. Voiceshard is an independent tool and is not affiliated with or endorsed by xAI.
Free voice workspace
Generate the Castor AI voice right on this page: enter your text, review the exact credit quote, and play the finished audio here — this page is the tool, so there is no download or extra app in between.
Free to start, no signup required to create. Start with 150 free credits; sign in free to unlock up to 1,200 credits per 30-day period and download the MP3.
Castor is a built-in voice from xAI's Grok Text to Speech API. Voiceshard calls that API from its own servers, so you can type text, pick Castor and get an MP3 without writing code. Every Grok voice can speak all supported languages. Voiceshard is not affiliated with or endorsed by xAI.
Narration, explainers and short social clips that need a male Grok TTS voice.
Type or paste the script you want in the Castor voice. The workspace above is the tool — no download or signup needed to start.
Every request shows an exact credit quote before generation. Start with 150 free credits; sign in free to unlock up to 1,200 credits per 30-day period.
Play the finished audio right here on this page. Sign in free only when you want to keep the MP3.
Yes. Every visitor starts with 150 free credits to generate and listen in the browser without an account. Sign in free to unlock up to 1,200 credits per 30-day period and download the MP3.
Use the workspace at the top of this page: enter your text, review the exact credit quote, and generate. The result plays right here — this page is the tool, there is no extra app to install.
Generate the audio here, download the MP3, then play it through a virtual microphone or upload it where the platform allows. This is an on-demand generator, not a real-time live changer.
No. This is an AI-generated, unofficial imitation of the Castor voice style. It must never be presented as an authentic recording or used to impersonate anyone.
You can use your generated results for personal projects. Commercial use requires entirely eligible paid credits and approval for the voice, processing service, and source rights. A paid plan alone does not grant voice rights; results using free or mixed credits are for personal use only. Follow the Voiceshard commercial license terms and never impersonate real people.
This is an AI-generated, unofficial voice. Do not present generated audio as an authentic recording or endorsement.
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