xAI and Grok Overview: Elon Musk’s AI Company Explained Simply

Hardly any AI company has generated as much discussion since its founding as xAI, the company behind the chatbot Grok. Anyone getting an overview of the major artificial intelligence providers will sooner or later come across Grok – usually because it’s built into the platform X (formerly Twitter) or shows up in the news. For private individuals, case workers and small businesses, a very practical question arises: what can the product actually do, what does it cost, and can it be used in Germany without concerns? This assessment proceeds factually – without evaluating the people involved or the political debates surrounding the company, but with a focus on the product itself, as part of our overview of AI models compared.

Brief history and mission of xAI

• xAI website
• Open Grok directly

xAI was founded in 2023 with the stated goal of “understanding the true nature of the universe” – as the company’s official mission states. In practice, this means: xAI develops large AI language models, released under the name Grok. Unlike OpenAI or Anthropic, for example, which emerged as independent research companies, xAI has been closely intertwined with the platform X from the very start, which is also owned by Elon Musk. This connection is one of the most important differences from other major AI providers: Grok has direct access to posts made on X in real time, allowing it to react to current events even before they appear in traditional news sources.

For training and running its models, xAI uses its own supercomputer named Colossus, operated in the USA (state of Tennessee), which ranks among the most powerful AI data centers in the world. This infrastructure allows xAI to release new model versions at short intervals – a pace that is now considered one of the fastest in the industry.

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Product overview: Grok as an app, on the web, and within X

Grok as a standalone app and website

Grok can be used just like ChatGPT or Gemini, as a standalone app (iOS and Android) or via the website grok.com. You type in a question or task and get a text answer, optionally with images or short videos. The interface is deliberately kept simple: an input field, a choice of mode (for example quick answer or deeper research), and the answer area. For people already familiar with another chatbot, switching to Grok takes only a few minutes.

Grok within X (Twitter)

The real distinguishing feature is its integration into X. There, Grok appears directly under posts and can, on request, provide context for a topic, summarize a post, or generate an accompanying image. Anyone already using X therefore has Grok automatically at hand, without installing an additional app. This close integration is both a strength and a point of contention: it gives Grok up-to-the-minute information, but also raises questions about the extent to which posts from X users are used for the AI – more on this in the data protection section.

Rule of thumb: anyone wanting to try Grok doesn’t need an X account – the app and the website grok.com work independently. Only those wanting to use the full integration within X additionally need an X profile.

Pricing models and subscription tiers (as of August 2026)

xAI tiers its offering into several levels, which differ mainly in the scope of use, access to the respective latest models, and additional features such as image and video generation.

Tier	Price	What’s included
Free	0 euros	Limited number of requests per time window, access to an older or lighter model
X Premium	approx. 8 euros/month	Grok access as part of the regular X subscription, higher usage limits
SuperGrok Lite	approx. 10 euros/month	Inexpensive standalone entry point without X Premium features
SuperGrok	approx. 30 euros/month	In-depth research feature, larger context window, full image and video generation, real-time data from X
SuperGrok Heavy	approx. 300 euros/month	Access to the respectively most powerful models with maximum usage limits, intended for very intensive use

For developers, or for companies wanting to integrate Grok into their own software, there is additionally a usage-based programming interface (API). There, billing is based on the amount of text processed, ranging from about 1 to 15 euros per million text units (tokens) depending on the model. For the vast majority of private users and small businesses, this is not relevant – one of the subscription tiers in the table above is generally sufficient.

Practical cost example: A trades business uses Grok for quote texts and market research.

• SuperGrok Lite: 10 euros/month, 120 euros/year
• SuperGrok: 30 euros/month, 360 euros/year
• SuperGrok better suited for X data and images

For most small businesses, SuperGrok offers the best ratio of feature scope to cost.

Data protection and GDPR assessment

Where is the data processed?

xAI is a US company; the servers and its own supercomputer Colossus are located in the USA. This means: anyone using Grok has their inputs processed on servers outside the European Union. This is not fundamentally prohibited, but – just as with other US AI providers – it requires an appropriate legal basis for the data transfer to the USA.

X user data as training data

One point that sets Grok apart from many competitors is its closeness to X. In the past, public posts from X users were used to train Grok, in some cases without those affected having actively consented – only an opt-out option in the account settings was provided. Because of this, the Irish data protection authority has already opened a review procedure against xAI, and the EU Commission is also examining, under the Digital Services Act, whether X carried out adequate risk assessments before integrating Grok. In response to the regulatory pressure, xAI has announced that it will no longer use public posts from users in the EU for training.

What does this mean in practice for a German private individual or a small business?

For everyday use as a chatbot, similar basic rules apply as with other AI providers:

• Do not enter sensitive personal data
• Do not share trade secrets
• No health data in the chat
• Review contract terms beforehand

Anyone using Grok within X: your own public posts can be analyzed, even though EU user data is excluded from training.

Aspect	Assessment for xAI/Grok
Server location	USA (no own EU data center)
Use of X posts for training	Now excluded for EU user data, still possible in some cases outside the EU
Ongoing supervisory proceedings	Review procedure by the Irish data protection authority, DSA proceedings by the EU Commission against X
Opt-out option	Adjustable in the X account (training data opt-out)

Rule of thumb: as long as ongoing supervisory proceedings are not concluded, Grok should be treated like any other US tool – good for general research and text drafts, but not for confidential customer data or contract content without first reviewing your own data protection obligations.

Strengths and weaknesses

Strengths	Weaknesses
Very current information thanks to real-time access to X	Server location outside the EU, ongoing data protection proceedings
Large context window in the newer models (long documents possible)	Answers sometimes phrased less cautiously than with some competitors
Inexpensive entry point and comparatively transparent pricing tiers	Model names and mode selection sometimes confusing for laypeople
Own image and video generation (Aurora/Grok Imagine) integrated	No specialized offering for strict German business compliance

Who is Grok suited for?

Grok fits several groups of users.

• Quick answers to up-to-the-minute questions
• A lot of work with social media content
• An inexpensive alternative to well-known chatbots
• Creative tasks with text, image and video

A real estate agent can research current discussions about a neighborhood before a sales conversation, and a property manager can draft a reply to a tenant inquiry.

For business applications in the real estate sector, where German hosting and a clearly traceable handling of customer data play a bigger role, it’s also worth taking a look at specialized alternatives such as Lukinski AI, which were developed specifically for this use case.

Frequently asked questions (FAQ)

Can Grok be used for free?

Yes, there is a free tier with a limited number of requests per time window and access to a simpler model. For regular or more intensive use, one of the paid tiers is worthwhile.

Do I need an X account to use Grok?

No. Grok can be used via its own app or the website grok.com without an X profile as well. Only direct integration into the X timeline requires an X account.

Are my chats with Grok used for training?

That depends on the respective settings and country of residence. For users from the EU, xAI has now excluded the use of public X posts for training; for direct chat inputs, it’s advisable to check the current privacy settings.

Is Grok GDPR-compliant?

xAI is under ongoing observation by European supervisory authorities, among other things because of the processing of X user data. A final legal assessment is still pending. For business use with particularly sensitive data, it’s advisable to conduct your own review beforehand or consider an alternative with European hosting.

What does Grok cost for companies that want to integrate it into their own software?

The programming interface (API) is billed according to the amount of text processed, ranging from about 1 to 15 euros per million tokens depending on the model. For simple use cases, one of the cheaper models is usually sufficient.

Anyone wanting to know in more detail which Grok model is suited for which purpose, and how the individual versions differ, will find the details on our Grok models comparison page.