OpenAI announced it is removing limits on text-based chats for all ChatGPT users, which recently crossed 1 billion weekly users. The new GPT-5.6 Luna model will be the default for Free and Go users, replacing GPT-5.5, with a new Think button for higher reasoning power; Plus and Pro users get an upgraded GPT-5.6 Sol model and a thinking slider. OpenAI said internal evaluations found factual errors were 62 percent less common for GPT-5.6 Luna and 68 percent less common for GPT-5.6 Sol versus GPT-5.5-Instant.
π The Backstory
ChatGPT has grown into one of the most widely used consumer AI products, crossing the 1 billion weekly user threshold. OpenAI has been expanding access to its models while layering optional paid features, and the latest update extends unlimited text chat to non-paying users while reserving the most advanced reasoning for subscribers.
π― Why It Matters
Unlimited text chats for free users could dramatically expand ChatGPT's reach and lock in users at a moment of intense competition among AI assistants. The improvement in factual-accuracy metrics is also significant for trust, though separate limits remain on files, images, voice and image generation.
OpenAI announced it is removing limits on text-based chats for all ChatGPT users, which recently crossed 1 billion weekly users. The new GPT-5.6 Luna model will be the default for Free and Go users, replacing GPT-5.5, with a new Think button for higher reasoning power; Plus and Pro users get an upgraded GPT-5.6 Sol model and a thinking slider. OpenAI said internal evaluations found factual errors were 62 percent less common for GPT-5.6 Luna and 68 percent less common for GPT-5.6 Sol versus GPT-5.5-Instant.
ChatGPT has grown into one of the most widely used consumer AI products, crossing the 1 billion weekly user threshold. OpenAI has been expanding access to its models while layering optional paid features, and the latest update extends unlimited text chat to non-paying users while reserving the most advanced reasoning for subscribers.
Unlimited text chats for free users could dramatically expand ChatGPT's reach and lock in users at a moment of intense competition among AI assistants. The improvement in factual-accuracy metrics is also significant for trust, though separate limits remain on files, images, voice and image generation.