xAI has updated Grok on X with a faster model, broader access and a stronger focus on source-backed answers. The company says Grok-2 improves performance, accuracy and language support while adding citations from X posts and external sites.
A faster Grok reaches all users on X
The upgraded Grok AI chatbot is available for free to all users of the X platform. Premium subscribers receive higher usage limits and additional features, giving paid users more room to use the system while keeping the model broadly accessible.
xAI reports that Grok-2 is three times faster than its predecessor. That speed claim matters because chatbot performance is not only about the quality of an answer. For everyday users, a system that responds more quickly can feel more useful in live conversations, search-like tasks and fast-moving threads.
The company also says the new version offers improved accuracy and expanded language support. Those changes point to a broader goal: making Grok more capable across different kinds of prompts and more useful to people who are not working only in English.
xAI says the upgraded model will rival Sonnet 3.5 in prompt following capabilities. In plain terms, that means the company is positioning Grok-2 as better at understanding and carrying out user instructions, not just generating fluent text.
Citations change how Grok answers questions
One of the most visible changes is how Grok-2 handles information. The system now incorporates information from both X posts and external sites, particularly news sources, to provide more up-to-date and detailed responses.
Grok now includes source citations with its answers. That is a significant product choice because citations can help users see where an answer is coming from, especially when the chatbot is responding to current discussions or claims circulating on X.
The update also means Grok is no longer drawing only from the conversation layer of X. By combining X posts with external sites, the chatbot can attach answers to a wider information base while still staying close to the platform where users are asking questions.
The source mix is especially notable because the article says Grok now cites legacy media. For users, that may make responses easier to evaluate when a topic depends on reporting from news organizations rather than individual posts alone.
The publisher question remains open
xAI has not disclosed whether it has payment arrangements with publishers for the use of their content. That leaves an important business question unanswered: how the company is handling the value of external news material that Grok uses and cites.
The source notes that AI search competitors such as OpenAI and Perplexity do have such arrangements. That comparison does not answer what xAI is doing, but it does frame the issue clearly. AI tools that use news sources can create pressure to define relationships with publishers, especially when those sources become part of the user experience.
For readers, the practical point is simple: Grok-2 may now show sources, but the commercial terms behind that content remain undisclosed in the source article. Citation is a user-facing feature; publisher arrangements are a separate question.
A new Grok button adds context inside conversations
The update also introduces a new Grok button feature. It is designed to provide additional context to ongoing discussions on X.
That feature includes the ability to explain images within conversations. This gives Grok a role beyond answering standalone prompts. It can become part of a thread, helping users interpret what is already being discussed or shared.
In a platform built around posts, replies and visual material, that context layer could be one of the more important parts of the upgrade. The feature suggests xAI wants Grok to operate inside the flow of conversation rather than as a separate chatbot users must visit on its own.
New API models and Aurora widen the roadmap
xAI has also made the new grok-2-1212 and grok-2-vision-1212 models available through its API. That gives developers access to the updated Grok models beyond the X interface.
The company also announced Aurora, a new image model designed from the ground up. Aurora will be available through the API in the coming weeks, according to the source article.
Together, the API models and Aurora show that xAI is extending Grok beyond chat on X. The text model, the vision model and the coming image model all point toward a broader developer-facing platform.
Elon Musk has previously announced plans for Grok 3, saying this summer that the next iteration would be the most powerful AI model by "every metric" when it launches in 2024. For now, the concrete update is Grok-2: faster responses, wider access, citations, a context button, API availability and a coming image model named Aurora.