Meta Muse Wonder beats Opus 5.5 and GPT-6 Astra on multiple benchmarks

Rohan Paul @rohanpaul_aiOriginally posted 2026.10.13

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Meta is so back. in each of these benchmarks Muse Wonder beats both Opus 5.5 and GPT-6 Astra The widest gap comes on SWE-Marathon. this one tests whether an AI agent can build an entire software project on its own, such as a C compiler or a Slack clone, over 2 to 10 hours, and counts a task only if every hidden check passes. And muse wonder full scores 57.5 against 46.3 for Opus 5.5.

This post quotes another post: “Meta releases Muse Wonder frontier model”