LaunchDevelopersAugust 5, 2026

Meta launches Muse Code, an AI agent for large code bases

Available in beta and installable via a single command, Muse Code runs on Meta's Muse Spark model and fans out large jobs to parallel sub-agents in isolated worktrees. Zuckerberg says it built six game features simultaneously with no collisions, positioning it as a lower-cost rival to OpenAI Codex and Anthropic Claude Code.

Featured · Mark Zuckerberg, Alexandr Wang

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