On August 7, according to Yicai, OpenAI announced on August 6 local time that the default model for free users has been upgraded to GPT-5.6 Luna, allowing unlimited text chat. Approximately one billion ChatGPT users worldwide will benefit directly from this change. Yesterday, DeepSeek released a statement announcing plans to significantly increase its API service pricing in the near future. The contrasting approaches of 'one release and one tightening' reflect the rise of domestic open-source models, which is pressuring a restructuring of the global AI pricing system.
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