TechCrunch

OpenAI releases GPT-5.5 Instant, a new default model for ChatGPT

On Tuesday, OpenAI released a new foundation model called GPT-5.5 Instant, which will replace GPT-5.3 Instant as the default ChatGPT model. The company said the model reduces hallucination in ...
VentureBeat

GPT-5.3 Instant cuts hallucinations by 26.8% as OpenAI shifts focus from speed to accuracy

OpenAI's GPT-5.3 Instant — the company's most widely used model — reduces hallucinations by up to 26.8% compared to its predecessor, prioritizing accuracy and conversational reliability over raw ...
TechCrunch

ChatGPT’s new GPT-5.3 Instant model will stop telling you to calm down

Take a breath, stop spiraling. You’re not crazy, you’re just stressed. And honestly, that’s okay. If you felt immediately triggered reading these words, you’re probably also sick of ChatGPT constantly ...
Neowin

Microsoft brings GPT‑5.3 Instant model to Microsoft 365 Copilot and Copilot Studio

OpenAI's new GPT‑5.3 Instant model is rolling out immediately to Microsoft 365 Copilot and API access via Microsoft Foundry coming soon. Last night, OpenAI announced GPT‑5.3 Instant, the successor to ...
The Next Web

OpenAI launches GPT-5.3 Instant to improve ChatGPT’s most-used model

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 ...