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Documentation Index

Fetch the complete documentation index at: https://docs.zerotwo.ai/llms.txt

Use this file to discover all available pages before exploring further.

xAI is Elon Musk’s AI company, founded in 2023. Grok models are known for their advanced reasoning capabilities, real-time knowledge (via integration with the X/Twitter platform), coding strength, and a distinct personality in responses. Grok models are available in ZeroTwo across all performance tiers.

Available Models

ModelTypeStrengthsPlan Required
Grok-4TextFlagship — advanced reasoning, research, and codingPro+ (Premium)
Grok-3TextPrevious generation flagship, strong general capabilityPro+ (Premium)
Grok Code FastTextOptimized for fast code generation and technical tasksPro+
Grok-4-1-fast-non-reasoningTextFast standard Grok for everyday tasksStandard (all plans)

Strengths

Advanced reasoning: Grok-4 is xAI’s most capable model, with strong performance on complex reasoning tasks, scientific questions, and multi-step problem-solving. Real-time knowledge: Grok models have access to real-time information from the X (formerly Twitter) platform, giving them an edge on current events, trending topics, and time-sensitive queries. This is a unique advantage over most other AI models. Coding: Grok models perform strongly on code generation, debugging, and technical analysis. Grok Code Fast is purpose-optimized for speed in coding tasks. Research: Grok-4’s combination of strong reasoning and real-time knowledge makes it well-suited for research tasks requiring both depth and currency. Personality: Grok models are known for more expressive, sometimes witty responses compared to other models. They can be more engaging for conversational use cases.

Best Use Cases

Coding assistance

Grok-4 and Grok Code Fast deliver fast, accurate code generation, debugging, and technical documentation.

Research with real-time data

Grok’s X platform integration provides current events context unavailable in other models.

Technical analysis

Complex technical reasoning, system design, and analytical tasks benefit from Grok-4’s reasoning depth.

General chat

Grok-4-1-fast provides strong general-purpose AI assistance on the standard tier (no premium quota usage).

Choosing a Grok Model

If you need…Use…
Best overall reasoning and researchGrok-4
Good general capability, previous genGrok-3
Fast code generationGrok Code Fast
Standard tier, everyday tasksGrok-4-1-fast-non-reasoning

Grok’s real-time knowledge from the X platform is most relevant for current events, breaking news, and social media trends. For other real-time information (financial data, weather, etc.), use ZeroTwo’s Web Search tool alongside any model.