OpenAI trades disclaimers for directness in its latest ChatGPT update
OpenAI has released GPT-5.3 Instant, an update to the default model powering ChatGPT. The company says the update reduces hallucinations, cuts down on refusals, and delivers a less defensive conversational tone. It is available to all ChatGPT users and to developers via the API under the name gpt-5.3-chat-latest. OpenAI measured hallucination improvements using two internal …