# Improving GPT-5.6 Sol in ChatGPT--and expanding access to GPT-5.6 Luna for free users

DevFeed: [Improving GPT-5.6 Sol in ChatGPT--and expanding access to GPT-5.6 Luna for free users](<https://devfeed.tech/articles/improving-gpt-5-6-sol-in-chatgpt-and-expanding-access-to-gpt-5-6-luna-for-free-users-6468.md>)

Original publisher: [Read original article](<https://openai.com/index/improving-gpt-5-6-sol-in-chatgpt>)

Published: 2026-08-06T10:00:00Z

Content type: release

Language: en

Sources: [OpenAI News](<https://devfeed.tech/sources/openai-news.md>)

Topics: [ChatGPT](<https://devfeed.tech/topics/chatgpt.md>), [Web](<https://devfeed.tech/topics/web.md>)

Tags: [chatgpt](<https://devfeed.tech/tags/chatgpt.md>), [gpt](<https://devfeed.tech/tags/gpt.md>), [model](<https://devfeed.tech/tags/model.md>), [product](<https://devfeed.tech/tags/product.md>), [responses](<https://devfeed.tech/tags/responses.md>), [update](<https://devfeed.tech/tags/update.md>), [updates](<https://devfeed.tech/tags/updates.md>), [web](<https://devfeed.tech/tags/web.md>)

## AI overview

OpenAI announces ChatGPT updates centered on GPT-5.6 Sol, including more focused and reliable answers, adjustable reasoning effort, and a more consistent experience between Instant and Thinking modes. Free users receive expanded access to GPT-5.6 Luna, including unlimited text chats and a new Think button for harder questions.

## Source excerpt

ChatGPT introduces improved GPT-5.6 Sol with better accuracy and consistency, plus expanded access for free users and unlimited everyday chats with GPT-5.6 Luna.