03/09/2026
Big news for the dev community! Muse Spark 1.3 is officially live.
If you are building complex, long-running, or multi-agent workflows, this update is huge. Muse Spark 1.3 is now available in Muse Code and the Meta Model API, performing competitively alongside top frontier models.
Here is what you need to know about the launch:
Built for Agents: It is specifically tuned for real-world agentic builds. It tracks context flawlessly, navigates messy or conflicting inputs, and actually pauses to ask for human input when needed.
💻 Next-Level Coding: Expect cleaner outputs, superior instruction following, and powerful long-horizon coding capabilities. Spend less time prompting and more time testing.
💸 Highly Competitive Pricing: The Standard tier sits at $1.25/M input and $4.25/M output. Need something more affordable? The Contributor tier drops it to an incredible $0.10/M input and $0.20/M output (data used to improve products).
🔌 Zero Friction Migration: Upgrading is as easy as changing a single model string. All your existing endpoints, SDKs, and pricing structures remain exactly the same.
Ready to level up your AI coding partner? Check out the launch blog and start building today at dev.meta.ai! 🌐