Grok

Overview

This is a model family overview. For version-specific details, see the individual model entries linked below.

Grok is xAI’s model family, evolving rapidly from earlier Grok releases through Grok 4 and the later Grok 4.1 updates. The line is positioned around strong reasoning, coding, and agent workflows with distinctive real-time information access through xAI and X-integrated product surfaces.

Current Latest

xAI’s most recent public product announcement in this repo snapshot is Grok 4.1, with Grok 4.1 Fast introduced for API tool-calling workflows. Grok 4 remains the core baseline generation tracked in the detailed profile pages here.

Strengths

• Strong reasoning and coding performance, competitive with frontier models
• Real-time data integration for current events and trending topics
• Growing agentic and tool-use capabilities
• Rapid product iteration across consumer and API surfaces
• Strong fit for language-first assistants that benefit from live information access

When to Choose Grok

• Tasks benefiting from real-time or current information
• Coding assistance and code generation
• Applications within the xAI/X ecosystem
• Exploratory use — Grok’s rapid development makes it worth evaluating for new projects

Access

• xAI API
• X (formerly Twitter) consumer products
• Grok consumer chat interface