Meta's Muse Wonder Full hits 57.5% on SWE-Marathon, beating Opus 5.5 and GPT-6 Astra

altryne · x · 2026-10-13

Zuckerberg announced Muse Wonder and Muse Wonder Full, Meta's new frontier models for personal and professional agentic work. Meta reports 79.0% on DeepSWE (vs 74.2% for Claude Opus 5.5, 74.1% for GPT-6 Astra) and 57.5% on SWE-Marathon (vs 46.3% and 42.5%). New Active Memory and Active Focus mechanisms sustain long agent work; trained at the gigawatt-scale Prometheus datacenter. Available now via Meta Model API and Muse Code.

Related event: Meta Unveils Muse Wonder, Its Most Capable Frontier Model(92 posts)→

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