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User @TheGeorgePu praises DeepSeek V4 Pro, calling it underrated and comparing it favorably to Opus 4.8 based on initial tests.
The first skill of the AI teaching tool, "3D Geometry Problem Solving," has been released, supporting text-based problem solving, image-based problem solving, and random question generation. Tests show that deepseek-v4-pro offers high cost-performance, with accuracy on some questions even surpassing GPT5.5.