Muse Spark 1.2 is now available on Vercel AI Gateway

Meta's Muse Spark 1.2 is now available on Vercel AI Gateway, featuring improvements in code generation, complex debugging, codebase understanding, and end-to-end developer workflows. The model is designed for long-horizon tasks such as generating entire repositories and iterative code improvement. Developers can access it via the AI SDK or through coding agents like Claude Code, Codex, OpenCode, and Pi.

Muse Spark 1.2 https://vercel.com/ai-gateway/models/muse-spark-1.2 from Meta is now available on AI Gateway. It is a coding-focused update to the previous Muse Spark model. While keeping its general capabilities, 1.2 ships with improvements in code generation, complex debugging, codebase understanding, and end-to-end developer workflows. The model is built for long-horizon work like generating whole repositories, building out large projects end to end, and sustaining iterative loops where it writes, compiles, profiles, and improves code over many rounds. To use Muse Spark 1.2, set model to meta/muse-spark-1.2 in the AI SDK https://ai-sdk.dev/ : To use Muse Spark in a coding agent https://vercel.com/docs/ai-gateway/coding-agents , run vercel ai-gateway coding-agents setup to connect Claude Code, Codex, OpenCode, or Pi, then select meta/muse-spark-1.2 inside the agent. AI Gateway provides a unified API for calling models, tracking usage and cost, and configuring retries, failover, and performance optimizations for higher-than-provider uptime. It includes built-in custom reporting https://vercel.com/changelog/custom-reporting-ai-gateway , Zero Data Retention support https://vercel.com/blog/zdr-on-ai-gateway , budgets for API keys https://vercel.com/docs/ai-gateway/authentication-and-byok/api-keys , routing rules https://vercel.com/docs/ai-gateway/models-and-providers/routing-rules , and more. AI Gateway reflects provider pricing with no markup and does not charge a platform fee on inference, including on Bring Your Own Key https://vercel.com/docs/ai-gateway/authentication-and-byok/byok BYOK requests. Try Muse Spark 1.2 in the model playground https://vercel.com/ai-gateway/models/muse-spark-1.2 .