When OpenAI launched GPT-5 last week, the company said the model would simplify the ChatGPT experience by serving as a unified AI system that could

ChatGPT’s GPT-5 rollout brings new modes and restores legacy models, reflecting OpenAI’s efforts to align AI performance and personality with user preferences.

In an interview, the head of ChatGPT says ‘we have to give people some level of predictability when there’s a major change.’ After the backlash to replacing its 4o model with GPT-5, OpenAI will no longer get rid of old models without a heads up.

Relations between the two tech bosses have soured amid a slew of lawsuits and social media digs.

On Monday, Musk said that his company xAI would “take immediate legal action” against Apple for allegedly unfairly favoring OpenAI’s ChatGPT over xAI’s Grok on its App Store. In a series of posts on the social-media platform X — which Musk has owned since 2022 and folded into xAI in March — Musk accused Apple of engaging in anticompetitive behavior and manipulating App Store rankings.

Elon Musk is turning to ChatGPT to adjudicate his long-running feud with Sam Altman. Musk posted a screenshot of a query to ChatGPT 5 Pro on Tuesday, asking whether he or Altman was "more trustworthy.

E lon Musk said Tuesday his social media platform X is working to fix its AI chatbot, Grok, after it sided with rival tech chief and OpenAI CEO Sam Altman in an ongoing dispute with Musk, who threatened to sue Apple on Monday night over allegations it favors OpenAI in its app store.

In a surprising twist, Elon Musk’s Grok AI sided with Sam Altman in a dispute over Apple’s App Store practices, while Altman’s ChatGPT supported Musk.