xAI Models

xAI's latest image-to-video model features native synchronized audio generation — video and sound are produced in a single inference pass. Supports 480p/720p output, clips up to 15 seconds, and ranked #1 on the Image-to-Video Arena leaderboard.

Excels at agentic reasoning, knowledge work, and tool use.

Grok 4.20 release introduces a multi-agent architecture (multiple specialized agents coordinated in real time), expanded context modes, and focused improvements to instruction-following, hallucination reduction, and structured/tooled outputs.

Generate videos from text prompts, animate still images, or edit existing videos with natural language. The API supports configurable duration, aspect ratio, and resolution for generated videos — with the SDK handling the asynchronous polling automatically.

Grok Code Fast 1 is an AI programming model launched by xAI, designed for fast and efficient basic coding tasks. The model can process 92 tokens per second, has a 256k context window, and is suitable for rapid prototyping, code debugging, and generating simple visual elements.