Leaked Muse Wonder benchmarks top SWE-Marathon at 57.5%, beating Claude Opus 5.5 and GPT-6
saln1 · reddit · 2026-10-13
A Reddit post shares an internal-looking benchmark chart for a model called Muse Wonder, showing it ahead of frontier rivals:
- SWE-Marathon (ultra-long horizon engineering): 57.5% vs 46.3% for Claude Opus 5.5 and 42.5% for GPT-6 Astra
- DeepSWE: 79.0%, also first place
- Personal Superintelligence Index: 59.1%, above Claude Opus 5.5 (55.2%) and GPT-6 Astra (54.5%)
- MemoryBench: 85.6%, leading all compared models
The chart also lists Claude Fable 5.1 and GPT-6 Astra and is labeled as internal evaluation. Unverified leak — treat scores with caution.
Related event: Meta Unveils Muse Wonder, Its Most Capable Frontier Models Yet(45 posts)→
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