ProductsOct 20, 20261 min readClaude Opus 5.5 vs GPT-6 Astra- Anthropic’s New AI Model Explained - TechRepublic0SaveShareContentsWhy it mattersTopicsCategoryProductsIndustry DomainThe Core DevelopmentClaude Opus 5.5 vs GPT-6 Astra- Anthropic’s New AI Model Explained TechRepublicWhy it mattersClaude Opus 5.5 vs GPT-6 Astra- Anthropic’s New AI Model Explained TechRepublic Reported by Google News — OpenAI / GPT-6 Astra on October 20, 2026.Topic dossiers Anthropic & Claude