Grok 4.3

Grok 4.3 is xAI's flagship model, accessible via grok.com or the SuperGrok mobile app (requires a SuperGrok Heavy plan). On the API, use the model ID `grok-4-3` at $1.25/1M input tokens and $2.50/1M output tokens. The model excels at step-by-step reasoning, native video analysis (an xAI first), direct generation of PDFs/spreadsheets/slides from conversations, and reliable tool calling. Its 1M-token context window allows processing very long documents in a single pass. Tip: Use Grok 4.3 for code generation, complex document analysis, or video processing—its key advantages over competitors in the same price tier.