Meta has released Muse Spark 1.3, its fourth model in the series in five months. According to Artificial Analysis, the model gains the most on agentic benchmarks but still trails Claude Fable 5.1 and other top models. The strongest argument is price. At $0.55 per task, Muse Spark undercuts every comparably scored rival.

Meta Superintelligence Labs releases Muse Spark 1.3 with 20% fewer tool calls and 25% lower token usage, accelerating its AI coding agent

Meta released Muse Spark 1.3, its most powerful AI model, with a paid developer API as it closes the gap on OpenAI and Anthropic in the frontier