Muse Code, a terminal coding agent in beta powered by the new Muse Spark 1.2 AI model, can take on “complex software engineering tasks across large repositories: planning changes, writing code, and validating the results,” Meta says. CEO Mark Zuckerberg also showed off a game built by the agent that you can play for yourself in Meta’s research blog post. [Image: Meta’s Embervault, built by Muse Code. https://platform.theverge.com/wp-content/uploads/sites/2/2026/08/Screenshot-2026-08-05-at-12.33.37-PM.png?quality=90&strip=all]

Meta released its first coding agent called Muse Code as the company ramps up its investments in AI models and services to try and take on Anthropic and OpenAI.

Meta launches AI coding agent Muse Spark 1.1, challenging Anthropic and OpenAI. Anthropic has best AI model by September 2026 at 87.5% YES.

Muse Code showcases Muse Spark's fresh software engineering chops