Meta releases Muse Spark Open weights, with token-priced shared endpoint on Modal

Meta 开源 Muse Spark Open，Modal 上线共享端点按 token 计费

Meta released the Muse Spark Open weights, and Modal Auto Endpoints now serves a shared endpoint billed per token. The model targets agentic coding and long-horizon tasks, with native multimodal understanding and a 1M-token context window. It handles code writing and debugging, multi-step planning, sequential tool calls and recovery from failures in long workflows.

Why it matters: Meta lists the agents, test harness and reasoning effort behind two Muse Spark Open benchmark scores, so comparisons have to account for those conditions.