ProductsOct 24, 20261 min readHow Kimi K3.1 Pro stacks up against Claude Opus 5.5 and GPT-6 Astra - R&D World0SaveShareContentsWhy it mattersTopicsCategoryProductsIndustry DomainThe Core DevelopmentHow Kimi K3.1 Pro stacks up against Claude Opus 5.5 and GPT-6 Astra R&D WorldWhy it mattersHow Kimi K3.1 Pro stacks up against Claude Opus 5.5 and GPT-6 Astra R&D World Reported by Google News — Moonshot / Kimi on October 24, 2026.Topic dossiers Anthropic & Claude