
The competition among Large Language Model (LLM) AIs has intensified, driven by the necessity to advance and differentiate in a rapidly evolving field.
The catalyst for this surge was OpenAI's introduction of ChatGPT, an AI renowned for its conversational prowess and human-like responses to a myriad of queries. This innovation spurred a race among tech companies, both large and small, to develop increasingly sophisticated LLM AIs.
As competitors' offerings began to converge in capabilities, a temporary plateau emerged.
To break this stagnation, companies focused on enhancing their AIs' abilities to self-evaluate and reason, aiming to create models capable of introspection and complex problem-solving.
Simultaneously, efforts were made to refine user interfaces, fostering more natural and fluid interactions between users and AI systems.
In response to OpenAI's advancements, Elon Musk's xAI introduced Grok, a chatbot designed to compete directly with leading models from OpenAI and others.
After releasing Grok-3 with reasoning capabilities, xAI now introduces the long-awaited Voice More feature.
Try Grok voice conversation mode!
Requires a Premium+ or SuperGrok subscription.
pic.twitter.com/247Ev60DoJ— Elon Musk (@elonmusk) February 24, 2025
Traditionally, the voice mode feature is meant to be the interface where users can speak with LLMs, and have the AI respond to them verbally.
As a way to customize the AI, companies have created various voices, including one that sounded like Scarlett Johansson, which literally angered her.
Grok on the other hand, goes a step further in this department.
First of, Grok's Voice Mode offers a dynamic and personalized conversational experience by featuring multiple selectable voices. The voices include 'Ara,' an upbeat female voice; and 'Rex,' a calm male voice.
Nothing new here, as others have done this before.
But xAI goes next level by giving Grok a few personalities users can choose from, each designed to cater to diverse user preferences.

The personalities of Grok users can choose, include:
- Default: a charismatic, and thoughtful Grok.
- Unhinged: this Grok can have an unpredictable mood, vulgar, and capable of cursing.
- Not a Therapist: makes Grok capable of listening to users, and offers solutions for self improvement. This Grok can respond with answers that are more insightful.
- Grok "Doc": Grok that acts more like a doctor, and can give medical advices.
- Conspiracy Theorist: a more witty Grok that can take any information and respond with conspiracies.
- Professor: a smart Grok who likes sharing intellectual ideas, and enjoys science, math, history, physics, and everything about the universe.
- Romantic: a shy Grok, but a romantic one, and has a distinct crush on users.
- Sexy: a sensual and horny Grok.
— Elon Musk (@elonmusk) February 23, 2025
xAI also experiments with other personalities as well, like:
- Best Friend: which makes Grok more like a friend to hang out with.
- Unhinged: a more witty Grok that makes can blurt out more in its responses.
- Genius: makes Grok sound more intellectual, making it respond with more intelligent answers.
- Stoner: Grok, but more drunken-like state.
Selecting one of the above will make the AI behind Grok to adapt its responses and tones accordingly.
During the test, Grok's Default is 'fun mode,' which exhibits a playful and edgy demeanor, often incorporating humor and a casual tone into its responses.
This mode is designed to make interactions more engaging and entertaining.
However, users seeking a more neutral and straightforward interaction can switch to the 'normal mode,' where Grok adopts a more conventional and serious tone.
Additionally, there's an option to add custom instructions, enabling further personalization of interactions.
Try @Grok voice mode and personalities https://t.co/K7gpRNWhAz
— Elon Musk (@elonmusk) February 23, 2025
In a post on social media platform X, Musk shared that the feature is still in its early stages. He warned that there may be some bugs. However, the xAI team is working to resolve issues quickly.
It's important to note that Grok's development has included addressing issues related to response appropriateness. For instance, there have been instances where the AI provided controversial or distressing answers, leading the development team to implement patches and improvements to ensure ethical and accurate interactions.
Overall, Grok's Voice Mode aims to provide a versatile and customizable AI experience, allowing users to select or define personalities that best suit their interaction preferences.
Before this, xAI announced that Grok-3 would be free for all users.
Previously, only its advanced features were only limited to X Premium+ or SuperGrok subscribers. But since the market demands it, and also because rivals are always nearby delivering similar offerings, Grok said that people can access the AI, but premium users still get extra perks. These include faster response times and priority access to the voice assistant mode.
This moment also marks yet another push by xAI towards creating a better AI, following the fact that China is catching up very fast, notably through DeepSeek which literally shook the West.