tech
OpenAI makes major upgrades for free and paid ChatGPT users. Here's what they are
The upgrades will help both paid and free users.

TL;DR
- OpenAI is shifting the default model for all users to GPT-5.6 Luna.
- GPT-5.6 Luna has 62% fewer factual errors than the previous default, GPT-5.5 Instant.
- Free and Go plan users will receive unlimited text chats and a 'Think' button for harder questions.
- Plus and Pro users will get an improved GPT-5.6 Sol for more focused answers and less unnecessary formatting.
- A new 'slider' tool will allow users to choose how much thought ChatGPT puts into an answer for Plus and Pro users.
- OpenAI recently cut prices for GPT-5.6 Luna and GPT-5.6 Terra, weeks after their launch.
- These changes aim to justify higher costs against cheaper Chinese open-weight models.