Grok

Grok is xAI's language model, and its defining feature is real-time access to X (Twitter) data and web content. While other models have knowledge cutoffs, Grok can reference posts, trends, and news from the current moment. Grok 3 significantly closed the gap with frontier models on reasoning, math, and coding benchmarks. The API is OpenAI-compatible, making it a drop-in replacement in existing codebases. It is available through the xAI API and through aggregators like OpenRouter. For applications that need current information baked into model responses rather than added through tool use, or for developers building social media analysis tools, Grok provides capabilities that other models simply do not have natively.