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Grok 4
by xAI
xAI's flagship model, distinguished by real-time access to X and a conversational style.
4/5
Visit Grok 4 - Context window
- 256K tokens
- Open weights
- No
- Released
- Jul 2025
Pros
- + Real-time knowledge via X integration
- + Strong reasoning benchmark scores
- + Less restrictive conversational style
Cons
- − Closed weights, API and X only
- − Real-time data quality varies
- − Smaller tooling ecosystem
What Is Grok 4
Grok 4 is the flagship large language model from xAI, Elon Musk’s AI company. Its standout trait is tight integration with the X platform, giving it real-time awareness of current events and trends.
In Practice
Grok is available inside X and through the xAI API. It posts competitive scores on reasoning benchmarks and adopts a more freewheeling conversational tone than rivals, making it a distinctive option in the frontier model field.