OpenAI’s GPT-5.5 Instant is now ChatGPT’s default model, promising fewer hallucinations, shorter answers, better memory ...

OpenAI has launched GPT-5.5 Instant as the new default model for ChatGPT, replacing GPT-5.3. The update introduces real-time self-correction, a 52.5% reduction in hallucinations for sensitive topics, ...

Within hours I paused an ongoing Opus 4.7 benchmark, swapped the API keys, and ran the exact same methodology on ...

ChatGPT outage hits thousands worldwide, disrupting OpenAI services including Codex and APIs as the company investigates and works to restore access.

In this tutorial, we build a complete Open WebUI setup in Colab, in a practical, hands-on way, using Python. We begin by installing the required dependencies, then securely provide our OpenAI API key ...

OpenAI just announced its latest models, GPT 5.4 mini and nano, with the former now available to free ChatGPT users. Earlier this month, OpenAI launched its GPT 5.4 model in its higher tiers of use, ...

OpenAI continues to ship new models with the release of GPT-5.4 mini and nano, its “most capable small models yet.” ChatGPT users can start using GPT-5.4 mini today. These flavors of GPT-5.4 are ...

OpenAI Group PBC today launched a new large language model that it says is more adept at automating work tasks than its earlier algorithms. GPT-5.4 is available in ChatGPT, the Codex programming tool ...

OpenAI today updated its most popular ChatGPT model, debuting GPT-5.3 Instant. GPT-5.3 Instant is supposed to provide more accurate answers and better contextualized results when searching the web.

OpenAI has confirmed that it's retiring ChatGPT's most popular model, called GPT-4o, and several other models, including GPT-5 Instant, GPT-5 Thinking, GPT-4.1, GPT-4.1 mini, and o4-mini. In a support ...

OpenAI announced it will retire several models from its ChatGPT chatbot next month. GPT‑4o, which is beloved for its warm conversational style, is one of the models that will be removed from the ...