Just as OpenAI launched the o3 and o3-mini models for ChatGPT, a report says training for GPT-5 is falling behind and incurring big costs.

A more advanced GPT-4o model was released on May 13 2024 to all users, not just ChatGPT Plus subscribers, while the ChatGPT 3.5 model was finally retired in July 2024. A new ChatGPT-4mini version ...

Posts on X — and TechCrunch’s own tests — show that DeepSeek V3 identifies itself as ChatGPT, OpenAI’s AI-powered chatbot ...

OpenAI released ChatGPT in November 2022. When launched, the initial version of ChatGPT ran atop the GPT-3.5 model. In the years since, the system has undergone a number of iterative advancements ...

DeepSeek, which in late November unveiled DeepSeek-R1, an answer to OpenAI’s o1 “reasoning” model, is a curious organization.