Meta launches Muse Wonder, topping coding and memory scores
According to The Rundown AI, Meta released Muse Wonder, with Wonder Full scoring 56 on Artificial Analysis’ Intelligence Index and leading Opus 5.5 on DeepSWE, SWE-Marathon, and MemoryBench; it is available now via Meta Model API and Muse Code.
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Meta released its new family of AI models called Muse Wonder, codenamed Watermelon, on October 12, 2026, according to The Rundown AI.
The top version Wonder Full scored 56 on Artificial Analysis’ Intelligence Index, behind only Claude Opus 5.5 at 58, while leading rivals on legal work with 13.1 on Harvey LAB versus 8.6 for GPT-6 Astra, long coding projects at 57.5 on SWE-Marathon versus 46.3 for Opus 5.5, coding tasks at 79.0 on DeepSWE versus 74.2 for Opus 5.5, and context remembering at 85.5 on MemoryBench versus 81.5 for Opus 5.5. Muse Wonder is available immediately in the Meta Model API and Muse Code, with Wonder Full open to paying Muse Code users.
The Rundown AI
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