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OpenAI launches GPT-5.5, calling it its most powerful model yet

OpenAI released GPT-5.5 in May 2026, calling it the most capable AI model the company has ever built. The new model sits above GPT-4o and the earlier GPT-5 in OpenAI’s lineup, and the company is ...
Ars Technica

Call ChatGPT from any phone with OpenAI’s new 1-800 voice service

On Wednesday, OpenAI launched a 1-800-CHATGPT (1-800-242-8478) telephone number that anyone in the US can call to talk to ChatGPT via voice chat for up to 15 minutes for free. The company also says ...
MacRumors

You Can Now Call 1-800-ChatGPT Using a Phone Line to Get AI Answers

OpenAI today announced support for a new phone-based ChatGPT experience, which can be accessed by calling or texting 1-800-ChatGPT (1-800-242-8478). The feature was introduced as part of OpenAI's ...

OpenAI's updated GPT-5.5 Instant is better at shopping, complex constraints, and understanding user intent — and it's already in the API

OpenAI is moving away from models that require heavy hand-holding and toward systems that can better infer the user’s goal, ...
ZDNet

OpenAI gives its voice agent superpowers to developers - look for more apps soon

OpenAI's Realtime API is now optimized and generally available. You can try its latest speech-to-speech model, gpt-realtime. The upgrades improve OpenAI's voice ...