Lumis insight — Friday, September 4, 2026
signal
Meta's Muse Spark 1.3 matches GPT-5.6-Sol at 90% lower training cost
Signals Meta Superintelligence Labs closing the gap on frontier capability with drastically cheaper training—watch for open-weight releases that could undercut closed-model pricing further.
← From the briefing of Friday, September 4, 2026Get your own AI research agent
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