OpenAI updating ChatGPT with a smarter GPT-5.6 Sol and unlimited free chats
OpenAI is updating ChatGPT with a smarter version of GPT-5.6 Sol and removing limits on text chat for free users. The new model will provide more focused answers and adapt the level of detail to each question.
Intelligence analysis by Llama

OpenAI is updating ChatGPT with a smarter GPT-5.6 Sol and unlimited free chats. The new model will provide more focused answers and adapt the level of detail to each question.
Imagine you're having a conversation with a really smart friend. They can answer your questions and help you with problems, but they also know when to give you more details or less. That's what OpenAI's new ChatGPT model does. It's like having a super smart friend who can help you with anything, and it's now available for free!
Analysis
GPT-5.6 Sol: A Smarter Model for Everyday Conversations
OpenAI has introduced a new version of GPT-5.6 Sol, specifically tuned for everyday conversations in ChatGPT. This update is designed to produce more focused answers, adapt the level of detail to each question, and avoid unnecessary formatting. The company claims that the revised model is more reliable when answering questions involving dates, numbers, rules, sources, and assumptions.
In an internal evaluation, answers containing at least one factual error were reportedly 68% less common with GPT-5.6 Sol than with GPT-5.5 Instant. This suggests that the new model is more accurate and trustworthy.
Unlimited Text Chats for Free Users
One of the major changes is the removal of limits on text chat for free users. This means that anyone can use ChatGPT without a paid subscription and still have access to the latest models. The new model, GPT-5.6 Luna, will provide more time for the model to work through the answer, and a new Think button will be available for harder questions.
Implications for Apple's Siri AI
The removal of limits on text chat in ChatGPT is especially useful right now as Apple prepares to launch Siri AI in iOS 27 and macOS Golden Gate. Apple is essentially making text-based chat part of the core OS experience. However, Apple isn't tackling many of the agentic features that modern ChatGPT offers. Making text chat unlimited matches what the platforms are able to offer as well.
Conclusion
OpenAI's update to ChatGPT is a significant step forward in the development of conversational AI. The new model, GPT-5.6 Sol, is more accurate and trustworthy, and the removal of limits on text chat for free users makes ChatGPT more competitive with Apple's Siri AI. As the AI landscape continues to evolve, it will be interesting to see how these updates impact the industry.
Key points
- OpenAI is updating ChatGPT with a smarter version of GPT-5.6 Sol
- The new model will provide more focused answers and adapt the level of detail to each question
- Unlimited text chats will be available for free users
- The new model is more reliable when answering questions involving dates, numbers, rules, sources, and assumptions
- Answers containing at least one factual error were reportedly 68% less common with GPT-5.6 Sol than with GPT-5.5 Instant
If this update plays out positively, we can expect to see more accurate and trustworthy conversational AI models in the future. This could lead to more seamless interactions between humans and machines, and potentially even more advanced AI applications.
However, there are also potential risks associated with the removal of limits on text chat. For example, it could lead to more abuse of the system, or even more misinformation being spread through the model.


