GPT-6.1 Terra vs. Claude Opus 5.5: Cheaper and faster in three tests at max effort

OpenAI launched GPT-6.1 Terra on October 26, and included two direct comparisons with Opus 5.5 in its marketing materials. It The post GPT-6.1 Terra vs. Claude Opus 5.5: Cheaper and faster in three tests at max effort appeared first on The