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HEAD-TO-HEAD FRONTIER BENCHMARK DUEL · UPDATED NOVEMBER 4, 2026
GPT-6 Astra vs. Muse Spark Open / Llama 4.2
Quick Verdict: Route autonomous coding to GPT-6 Astra (83.4% SWE-bench Verified), hard scientific reasoning to GPT-6 Astra (96.0% GPQA Diamond), and high-volume cost-sensitive workloads to Muse Spark Open / Llama 4.2.
GPT-6 Astra (OpenAI)
94.1 pt
SWE: 83.4% · GPQA: 96.0% · $7.50/1M · 18d Pulse WaveMuse Spark Open / Llama 4.2 (Meta (Open))
86.4 pt
SWE: 74.8% · GPQA: 89.4% · $0.35/1M · Mid-Cycle (57%)