Meta's Muse Spark 1.3 tops Gemini 3.8 Flash on most overlapping benchmarks, crushes long-context MRCR
ChrisGPT · x · 2026-09-03
Blogger ChrisGPT compiled benchmark comparisons of Meta's newly released Muse Spark 1.3 against Google's same-day Gemini 3.8 Flash (figures attributed to Google DeepMind, independently unverified).
- Muse Spark 1.3 wins most overlapping benchmarks: GDPVal-AA v2 1754 vs 1545, DeepSWE 75.4 vs 73.7, OSWorld 2.0 66.9 vs 59.0; Gemini edges Terminal-Bench 2.1 (89.4 vs 88.8).
- Long context is the standout: 98.5 on MRCR 256K–512K and 98.1 on 512K–1M, versus 91.5 and 73.8 for GPT-5.6 Sol.
- The author notes it beats Opus 5 on DeepSWE and Terminal-Bench, though Opus remains stronger on GDPVal and OSWorld.
Related event: Meta Launches Muse Spark 1.3: Near-Frontier Performance at ~1/8 the Price(53 posts)→
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