OpenAI announced several updates to ChatGPT affecting multiple user tiers. Beginning next week, users on the free and Go subscription levels will gain access to unlimited text conversations, eliminating current rate restrictions that prevent extended chatting sessions. However, multimodal interactions involving file uploads and images will continue to operate under existing usage limits.
The company is also introducing a new “Think” button feature for free and Go tier subscribers, enabling them to access enhanced reasoning capabilities for complex questions. This week, the default AI model for these users is being upgraded to GPT-5.6 Luna, representing a significant boost to the baseline capabilities available without a paid subscription.
For paid subscribers on Plus and Pro tiers, OpenAI is rolling out an updated version of GPT-5.6 Sol designed to improve factual accuracy. According to OpenAI, the updated model aims to reduce errors in responses that rely on dates, numbers, sources, rules, or assumptions by better leveraging source materials. The model is also configured to provide more concise answers with streamlined formatting and reduced extraneous information.
Plus and Pro subscribers will also gain access to a new control mechanism starting Thursday that allows users to adjust the level of reasoning depth ChatGPT applies to individual queries. This slider-based feature gives paying users greater customization over how extensively the model analyzes their questions before generating responses.
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