What changed
Muse Spark 1.1 is a multimodal, million-context agent model with computer use, parallel subagents, context compaction and native tool and MCP support. It is available through Meta’s Model API preview.
Why it matters
Meta is no longer relying only on downloadable Llama models. It is now competing for hosted, long-running agent workloads.
What to do
Test whether it can combine article pages, PDFs, charts and video into one grounded news object before judging it on generic chat.
Caveat
The API is still a preview and Meta’s coding, safety and performance results need independent reproduction.