Opus 5.5 Beats GPT-6 Astra in 8 of 12 Real-World Trials

A head-to-head test of Opus 5.5 and GPT-6 Astra across 12 tasks from web design to coding found Opus 5.5 winning 8 trials, especially creative ones, while Astra was 45% faster and 38% cheaper overall. Total cost and runtime: $214 and ~11 hours for Opus 5.5 versus $132 and ~6 hours for Astra.

• Opus 5.5 won 8 of 12 tests, strongest in design and storytelling
• GPT-6 Astra was 45% faster and 38% cheaper overall
• Costs: $214 and ~11 hours for Opus 5.5 vs $132 and ~6 hours for Astra
• Astra led in structured tasks: dashboards, coding, analytics