Claude Opus 4.8 vs Grok Build 0.1

Anthropic's flagship is built for work that other models get wrong. Opus 4.8 takes on the hardest coding, the deepest analysis, and writing that has to be right first time. It reads images and documents, holds a very large amount of context at once, and works through problems step by step so you can follow its logic. Slower and more expensive than lighter models, by design.

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.