Meta has unveiled its new paid AI developer model, Muse Spark 1.1, which is positioned as a competitive agentic and programming model in the industry. The model's performance has been benchmarked against leading models such as GPT-5.5 and Opus-4.8, showing comparable results. Muse Spark 1.1 is now accessible through the Meta model API and Meta AI platform. CEO Zuckerberg announced plans to offer the model at a price point lower than its competitors. Additionally, Meta is providing a $20 credit to every new Meta model API account.