Grok 4: The new XAI’s AI model, an AGI? Reviews, Prices & Alternatives

Grok 4, xAI’s latest creation, has crushed all the latest AI benchmarks. It is without doubt the best artificial intelligence available today. This model, designed by Elon Musk’s company, is helping to change our approach to knowledge and logic. It appears as a truth-seeking AI companion equipped to provide direct answers and a pronounced curiosity.

➥ What is Grok 4?

Screenshot from the official Grok.com website

In fact, Grok 4 is the latest flagship version of the great language models developed by xAI. This model is bluntly presented with “doctorate-level” intelligence, surpassing even many graduates in various disciplines. Officially launched on July 9 and 10, 2025, this instrument represents a major breakthrough in the area of generative AI.

Versions available, including the famous “Heavy” version

xAI’s new baby comes in two main variants: a standard version and “Grok 4 Heavy”, a multi-agent version designed for even more complex queries. A specialized edition, Grok 4 Code, is also available for developers.

Architecture designed for performance (+API)

Grok 4’s core is based on its improved reasoning capabilities and logic based on first principles. Such a feature enables it to correct its own errors and provide accurate answers. The extended contextual window of this model, reaching over 130,000 tokens in the application and up to 256,000 tokens via its programming interface (API).

This gives it an in-depth understanding of vast quantities of data, including entire code bases.

➥ How does Grok 4 operate?

Its operation integrates several components for the smoothest possible experience. The model is accessible via the X application, the xAI API, and the grok.com website. It has been specially designed to provide intelligent, real-time information thanks to its DeepSearch functionality, which draws directly on up-to-date data from the X social network and the web.

Multi-modal skills and remarkable responsiveness

Grok 4 supports text input, visual input and image generation, with augmented abilities for image interpretation. Also, its refined voice capabilities ensure natural, soothing interactions. In continuation, a “Heavy” version implements a multi-agent system, where multiple AI agents collaborate to solve hard problems and polish results.

A trusted code assistant

For development professionals, Grok 4 Code is a valuable aid. This variation facilitates code generation, completion and debugging, with direct integration into integrated development environments (IDEs). You can even submit complete source code files for correction. (Now that’s impressive!)

A distinct personality

Grok 4 is known for its conversational tone, often infused with humor, which makes the dialogue more engaging. What’s more, it’s also renowned for its ability to provide direct answers, not hesitating to broach subjects that other conversational agents might avoid.