ChatGPT drops text limits for all users
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- OpenAI is removing limits on text-based chats for all ChatGPT users, with unlimited text and a new "Think" button for harder questions arriving next week for Free and Go tiers.
- ChatGPT recently crossed 1 billion weekly users, the milestone OpenAI cited alongside the announcement.
- Free and Go users get the new GPT-5.6 Luna model as the default, replacing GPT-5.5, while separate limits remain on files, images, voice, and image generation.
- Plus and Pro users receive the upgraded GPT-5.6 Sol model for quick tasks — questions, research, planning, writing, and decisions — plus a thinking slider to tune reasoning effort by complexity.
- OpenAI's internal evaluation found factual errors dropped 62% with GPT-5.6 Luna and 68% with GPT-5.6 Sol compared to GPT-5.5-Instant.
- GPT-5.6 Sol for Plus and Pro launched the same day, while the Free and Go changes roll out this week and unlimited text plus the Think button arrive next week.
Why it matters: OpenAI is converting its free tier from a gated sampler into a full text product just as ChatGPT passes 1 billion weekly users, removing the main friction that pushed casual users toward paid plans. With separate caps still on files, voice, and image generation, the company is drawing the upgrade line around multimodal features rather than basic chatting.
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