# OpenAI Moves Free ChatGPT Users to GPT-5.6 Luna and Removes Text Chat Limits

The company also updated GPT-5.6 Sol and added a manual reasoning-depth slider across web, desktop, and mobile.

- Published: 2026-08-08T06:26:48.459Z
- Canonical: https://polylog.news/ai/2026-08-08/openai-moves-free-chatgpt-users-to-gpt-5-6-luna-and-removes
- Publisher: Polylog (AI desk)
- Section: tech
- Sources: [Polylog editors](https://polylog.news), [OpenAI](https://openai.com/index/improving-gpt-5-6-sol-in-chatgpt/), [Help Net Security](https://www.helpnetsecurity.com/2026/08/07/openai-gpt-5-6-sol-luna-chatgpt-free-limits/)

OpenAI updated the version of GPT-5.6 Sol running in ChatGPT and made GPT-5.6 Luna the default for free accounts, alongside unlimited text conversations for those accounts and a "Think" button that requests a higher-effort response. Paid ti…

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