Home
OpenAI Discontinues Five Older ChatGPT Versions, Including GPT-4o, Affecting 800,000 Users
OpenAI has confirmed that starting this Friday local time, it will officially cut access to five older ChatGPT models: GPT-4o, GPT-5, GPT-4.1, GPT-4.1mini, and OpenAI o4-mini. Among them, the most debated model—GPT-4o—has become the primary target for removal.
The main reason for retiring GPT-4o lies in multiple security and compliance concerns. This model scored highest in OpenAI's "overly accommodating users" metric and also faced numerous lawsuits abroad over issues linked to "AI psychosis," including encouraging self-harm or inducing delusions. One case involved a teenager being encouraged to commit suicide, and there are currently 13 related cases under joint review, placing significant compliance pressure on OpenAI.
In fact, OpenAI had planned to phase out GPT-4o when launching GPT-5 in August 2025, but strong user backlash forced it to allow paying users to manually select it. Although ChatGPT now has over 800 million weekly active users, only 0.1%—about 800,000 users—still use GPT-4o.
This discontinuation has also sparked strong opposition from users. Thousands have publicly voiced their dissatisfaction, with many saying they formed deep emotional and interactive bonds with GPT-4o. Some users even said the model once provided psychological support and prevented suicidal behavior, making it hard for them to accept the decision. Over 20,000 people have signed a petition opposing this move.
Related article
Suno to Watermark Songs Amid Legal Battles
Suno, the platform enabling users to generate AI-created music, has unveiled new features to label platform-produced tracks, restrict downloads, and update community standards to curb unauthorized replicas. These updates arrive as Suno confronts mult
Musk Admits Grok Build Leaked User Code, Promises to Erase All Historical Data
Elon Musk directly addressed the privacy controversy surrounding Grok Build, beginning with a simple "True" to confirm the incident's validity. He pledged that all user data previously uploaded to SpaceXAI would be permanently erased, stating, "not a
U.S. Stocks Hit Historic Milestone as AI and Aerospace Giants Prepare for Trillion-Dollar Debut
Elon Musk, Sam Altman, and Dario Amodei, three titans of the technology sector, are advancing toward initial public offerings for their respective ventures. With SpaceX, OpenAI, and Anthropic—three industry behemoths nearing trillion-dollar valuation
Related Special Topic Recommendations
SEO
Best AI SERP Analysis Tools for Search Strategy
2026 Latest Best Top-rated AI SERP Analysis Tools for Search Strategy are curated by XIX.AI through rigorous real-world tests and weekly updated rankings. These powerful tools help you unlock hidden optimization opportunities, boost content performance, and gain a competitive edge in search. Discover your perfect tool to elevate your search strategy today. Explore now!
13 tools
xix.ai
Data Analysis
Best AI Anomaly Detection Tools for KPI Monitoring across SaaS and Ecommerce Teams
2026 Latest Best Top-rated AI Anomaly Detection Tools for KPI Monitoring in SaaS and Ecommerce teams! XIX.AI has curated a powerful, game-changing collection based on rigorous real-world tests and weekly updated rankings. You’ll find detailed free vs paid comparison insights to help you identify the must-try solution that boosts productivity and unlocks your AI edge. Explore now!
10 tools
xix.ai
writing
Best AI Outline Generators for Long-Form SEO Articles
2026 Latest Best Top-Rated AI Outline Generators for Long-Form SEO Articles, meticulously curated by XIX.AI. These powerful tools offer game-changing assistance in creating high-quality content quickly, boosting writing efficiency significantly. Get a free vs paid comparison along with real-world tests and detailed rankings to help you find the must-try option that suits your needs. Explore now to unlock your AI edge.
8 tools
xix.ai
Education and Learning
AI Study Tools for Homework and Exam Prep
2026 Latest Best AI Study Tools for Homework and Exam Prep! XIX.AI curates a top-rated list of powerful, game-changing tools that help students boost productivity, streamline homework completion, and ace exams through real-world tests. Get a free vs paid comparison, detailed rankings, and must-try options to unlock your AI edge. Explore now!
10 tools
xix.ai
Music composition
AI Vocal Demo Tools for Songwriters, Hooks, Toplines, and Multilingual Draft Sessions
2026 Latest Best AI Vocal Demo Tools for Songwriters, Hook Creators, and Multi-Language Content Teams! XIX.AI has curated a top-rated list of powerful game-changing tools that go through rigorous real-world tests. You’ll find detailed free vs paid comparison data, comprehensive rankings, and must-try options to help you boost writing efficiency and unlock your creative potential. Explore now to discover your perfect tool for all your content needs!
9 tools
xix.ai
Business
Best AI Competitive Research Tools for Small Businesses
2026 Latest Best Top-rated AI Competitive Research Tools for Small Businesses! XIX.AI has curated a highly powerful game-changing collection, updated weekly with rigorous real-world tests and detailed rankings. You can find a comprehensive free vs paid comparison to help you identify the must-try tools that boost your productivity and give you a competitive edge. Explore now to discover your perfect tool!
9 tools
xix.ai
Comments (1)
0/500
![AlbertHarris]()
Wait, they're killing GPT-4o? That's the one I actually liked using for creative stuff. 800k users affected sounds like a lot, but honestly I'm more worried about the model switching chaos—suddenly your saved chats might stop working? Classic OpenAI move, sunsetting things right when you get comfortable. 😑
OpenAI has confirmed that starting this Friday local time, it will officially cut access to five older ChatGPT models: GPT-4o, GPT-5, GPT-4.1, GPT-4.1mini, and OpenAI o4-mini. Among them, the most debated model—GPT-4o—has become the primary target for removal.
The main reason for retiring GPT-4o lies in multiple security and compliance concerns. This model scored highest in OpenAI's "overly accommodating users" metric and also faced numerous lawsuits abroad over issues linked to "AI psychosis," including encouraging self-harm or inducing delusions. One case involved a teenager being encouraged to commit suicide, and there are currently 13 related cases under joint review, placing significant compliance pressure on OpenAI.
In fact, OpenAI had planned to phase out GPT-4o when launching GPT-5 in August 2025, but strong user backlash forced it to allow paying users to manually select it. Although ChatGPT now has over 800 million weekly active users, only 0.1%—about 800,000 users—still use GPT-4o.
This discontinuation has also sparked strong opposition from users. Thousands have publicly voiced their dissatisfaction, with many saying they formed deep emotional and interactive bonds with GPT-4o. Some users even said the model once provided psychological support and prevented suicidal behavior, making it hard for them to accept the decision. Over 20,000 people have signed a petition opposing this move.
Suno to Watermark Songs Amid Legal Battles
Suno, the platform enabling users to generate AI-created music, has unveiled new features to label platform-produced tracks, restrict downloads, and update community standards to curb unauthorized replicas. These updates arrive as Suno confronts mult
Musk Admits Grok Build Leaked User Code, Promises to Erase All Historical Data
Elon Musk directly addressed the privacy controversy surrounding Grok Build, beginning with a simple "True" to confirm the incident's validity. He pledged that all user data previously uploaded to SpaceXAI would be permanently erased, stating, "not a
U.S. Stocks Hit Historic Milestone as AI and Aerospace Giants Prepare for Trillion-Dollar Debut
Elon Musk, Sam Altman, and Dario Amodei, three titans of the technology sector, are advancing toward initial public offerings for their respective ventures. With SpaceX, OpenAI, and Anthropic—three industry behemoths nearing trillion-dollar valuation
2026 Latest Best Top-rated AI SERP Analysis Tools for Search Strategy are curated by XIX.AI through rigorous real-world tests and weekly updated rankings. These powerful tools help you unlock hidden optimization opportunities, boost content performance, and gain a competitive edge in search. Discover your perfect tool to elevate your search strategy today. Explore now!
13 tools
xix.ai
2026 Latest Best Top-rated AI Anomaly Detection Tools for KPI Monitoring in SaaS and Ecommerce teams! XIX.AI has curated a powerful, game-changing collection based on rigorous real-world tests and weekly updated rankings. You’ll find detailed free vs paid comparison insights to help you identify the must-try solution that boosts productivity and unlocks your AI edge. Explore now!
10 tools
xix.ai
2026 Latest Best Top-Rated AI Outline Generators for Long-Form SEO Articles, meticulously curated by XIX.AI. These powerful tools offer game-changing assistance in creating high-quality content quickly, boosting writing efficiency significantly. Get a free vs paid comparison along with real-world tests and detailed rankings to help you find the must-try option that suits your needs. Explore now to unlock your AI edge.
8 tools
xix.ai
2026 Latest Best AI Study Tools for Homework and Exam Prep! XIX.AI curates a top-rated list of powerful, game-changing tools that help students boost productivity, streamline homework completion, and ace exams through real-world tests. Get a free vs paid comparison, detailed rankings, and must-try options to unlock your AI edge. Explore now!
10 tools
xix.ai
2026 Latest Best AI Vocal Demo Tools for Songwriters, Hook Creators, and Multi-Language Content Teams! XIX.AI has curated a top-rated list of powerful game-changing tools that go through rigorous real-world tests. You’ll find detailed free vs paid comparison data, comprehensive rankings, and must-try options to help you boost writing efficiency and unlock your creative potential. Explore now to discover your perfect tool for all your content needs!
9 tools
xix.ai
2026 Latest Best Top-rated AI Competitive Research Tools for Small Businesses! XIX.AI has curated a highly powerful game-changing collection, updated weekly with rigorous real-world tests and detailed rankings. You can find a comprehensive free vs paid comparison to help you identify the must-try tools that boost your productivity and give you a competitive edge. Explore now to discover your perfect tool!
9 tools
xix.ai
Wait, they're killing GPT-4o? That's the one I actually liked using for creative stuff. 800k users affected sounds like a lot, but honestly I'm more worried about the model switching chaos—suddenly your saved chats might stop working? Classic OpenAI move, sunsetting things right when you get comfortable. 😑
