The article discusses the upcoming inclusion of GPT-5.6 Sol Ultra in Codex, but the article text is not available. However, the comments reveal that OpenAI has found a way to cut inference costs by half, according to The Information. The discussion focuses on the potential techniques used to achieve this cost reduction, such as caching similar answers or using compute multipliers. The comments also touch on the topic of Chinese models and the potential for the US government to ban their use.