GPT-5.4 Thinking adds deeper reasoning and workflow abilities to ChatGPT while GPT-5.3 Instant remains the fast default for everyday use.

Hundreds of employees at Google and OpenAI have signed a public letter urging their companies to set firm boundaries on how AI can be used by the military

A new study suggests AI models frequently escalate to nuclear threats in simulated conflicts, likely mirroring the strategic thinking and war game scenarios that dominate their training data.

Nano Banana 2 can make Pokémon screenshots from your imagination.

OpenAI has replaced ChatGPT’s default model with GPT-5.3 Instant, an update designed to make the chatbot less awkward and more accurate.