Mark Zuckerberg announced Muse Spark 1.3 in Muse Code and the Meta Model API, calling it Meta’s biggest jump yet on coding and agentic work, with frontier performance almost too cheap to meter. Meta Superintelligence Labs followed with a 1.3 max reasoning tier for even stronger coding agents, and teased upcoming open-weight releases.

Key Takeaways

  • ✓Positioned as Meta’s most capable model yet, with the largest gain so far on coding and agentic workloads
  • ✓Available now in Muse Code and the Meta Model API, and already a top-3 model by OpenCode usage
  • ✓Muse Spark 1.3 max adds a higher-reasoning coding tier; a larger 🍉 model and open weights are next
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