GPT-5.4 Mini vs Grok Build 0.1

OpenAI's more affordable mid-tier model, built to balance capability and cost at scale. GPT-5.4 Mini handles chat, coding assistants, and agent workflows with reliable instruction following and solid multi-step reasoning. It reads text and images across a large context window, and supports web search and function calling. A practical production choice when you want current GPT quality without the flagship price.

xAI's coding model, purpose-built for autonomous software engineering rather than chat. Grok Build 0.1 acts as an engineering agent: it reasons through a problem, writes code, runs your terminal, checks for errors, and fixes its own mistakes in a loop. It reads text and images, always reasons before answering, and natively supports Model Context Protocol. Built for long-horizon coding that runs with little supervision, at a low cost, tuned for agent loops.