OpenAI has announced a major upgrade to its GPT-5 series with the release of GPT-5.1, describing it as “smarter, more reliable, and a lot more conversational”. CEO Sam Altman, sharing the news on X, ...

OpenAI has released GPT-5.3 Instant, the latest iteration of the fast, general-purpose model that powers everyday interactions in ChatGPT. Rather than introducing a new frontier model, the update ...

The company said the model reduces hallucination in sensitive areas such as law, medicine, and finance, while maintaining the low latency of its predecessor.

The company announced in a blog post on Tuesday that ChatGPT 5.5 Instant has begun rolling out to all users as the new ...

OpenAI has officially announced its GPT-5.2 upgrade to ChatGPT. This is the so-called “code red” reaction to Google Gemini that OpenAI calls its “most capable model series yet for professional ...

OpenAI on Thursday, 13 November, rolled out its new GPT 5.1 models for ChatGPT, introducing two upgraded versions for users: GPT-5.1 Instant and GPT-5.1 Thinking. In its blog post, the Sam Altman-led ...

GPT-5.5 lands seven weeks after the release of GPT-5.4, which arrived on March 5. OpenAI says the newest model “understands what you’re trying to do faster” and that it can “carry more of the work ...