The shift marks a significant expansion for the platform, though functional boundaries remain for non-text interactions. While text chats are now unlimited, OpenAI maintains specific usage caps for file uploads, voice inputs, and image generation. The introduction of the "Think" button allows free users to manually trigger enhanced reasoning capabilities when tasks require deeper logic.
In section Startups & Technology
OpenAI Lifts Text Chat Limits for Free ChatGPT Users
One billion weekly users now have unrestricted access to text-based conversations on ChatGPT. OpenAI is rolling out the GPT-5.6 Luna model as the new standard for free and Go accounts, replacing the previous 5.5 version while introducing a dedicated reasoning toggle for complex inquiries.
Premium tiers are seeing parallel upgrades with the deployment of GPT-5.6 Sol. Designed for efficiency, this model targets quick tasks such as web research, planning, and decision-making. Plus and Pro subscribers receive a granular "thinking slider," enabling them to calibrate the model’s cognitive effort based on the specific complexity of a prompt. Internal benchmarks suggest these architectural improvements yield a substantial boost in accuracy, with OpenAI reporting a 62% reduction in factual errors for the Luna model and a 68% drop for Sol compared to their predecessors. The Sol model is available to paid subscribers immediately, while the broader suite of features for free users will deploy throughout the coming week.
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