08/08/2026
OpenAI is changing how ChatGPT works for Free and Go users, starting next week, now everyone can use unlimited text chats.
The rollout begins the week of August 10, so it may not appear for everyone immediately.
Here’s what changed:
• Plus & Pro users → GPT-5.6 Sol now powers both Instant and deep reasoning. One consistent, more factual, and more focused experience across all chats.
• Free & Go users → Unlimited text chats with GPT-5.6 Luna start tomorrow. Plus, you now get a “Think” button for harder questions when you need extra reasoning.
The biggest upgrade? Factuality.
In high-stakes evaluations covering finance, medicine, and law, GPT-5.6 Sol produced 68% fewer responses with factual errors compared to GPT-5.5 Instant.
Plus & Pro users also get a new slider to control how much reasoning effort ChatGPT puts into each response. More control, less friction.
Important notes:
– This Sol version is for everyday ChatGPT chats
– The versions powering Work and Codex remain unchanged
– Slider + upgraded Sol available today for paid users
Smarter models. Better access. Cleaner experience.
Which upgrade are you most excited about — the factuality jump, the reasoning slider, or unlimited Luna for free users?
Drop your thoughts on this💬🤔