ChatGPT just received one of its biggest intelligence upgrades yet, bringing brand-new default models, new reasoning controls, and more.
OpenAI upgraded ChatGPT to GPT-5.6 Sol (Plus/Pro) with 68% fewer errors on financial/legal/medical prompts and reasoning slider. Free users get GPT-5.6 Luna with unlimited text—removing friction and targeting accuracy-critical enterprise verticals.
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OpenAI has officially updated the default models across ChatGPT tiers with GPT-5.6 series to improve accuracy and user control.
Pradeep Viswanathan
Neowin
@pradeepviswav ·
OpenAI rolls out a major ChatGPT upgrade, even if you don’t pay for it
OpenAI updating ChatGPT with a smarter GPT-5.6 Sol and unlimited free chats - 9to5Mac
ChatGPT brings unlimited text chats to free users | TechCrunch
OpenAI removes the daily limit on free ChatGPT chats and upgrades the default model to GPT-5.6 Luna
OpenAI GPT-5.6 Expands Reasoning Controls While Free and Go Default to Terra
OpenAI aggiorna ChatGPT: GPT-5.6 Luna arriva agli utenti Free con chat di testo illimitate
ChatGPT now offers unlimited text chats for free users
OpenAI improves GPT-5.6 Sol in ChatGPT and restricts free users to its weakest model
ChatGPT: Alle User bekommen unbegrenzte Chats mit GPT-5.6 Luna – kostenlos
OpenAI makes major upgrades for free and paid ChatGPT users. Here's what they are
