Gemini 4 Carbon vs GPT-6 Astra: How to Choose Under a 5x Price Gap, Dividing Work Across 4 Task Types

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Author’s note: Gemini 4 Carbon and GPT-6 Astra split the work by task. Neither one replaces the other. This article walks through how to choose across four dimensions: benchmarks, protocols, pricing, and use cases. Gemini 4 Carbon opened to paid developers on November 10, 2026, and a lot of teams now have to pick one … Read more