Higgsfield AI has put Claude Opus 5.5 and GPT-6 Astra into a visible 3D gaming face-off, publishing samurai-themed demos made with its game-generation stack on September 22, 2026. The clips arrive the same day Anthropic released Claude Opus 5.5 and after OpenAI positioned GPT-6 Astra as its flagship model for complex coding, computer use and end-to-end work.
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