OpenAI's GPT-5.5 is here, and it's no potato: narrowly beats Anthropic's Claude Mythos Preview on Terminal-Bench 2.0

So when it comes to models that the general public can access, GPT-5.5 has retaken the crown for OpenAI, achieving the ...
Morning Overview on MSN

OpenAI launches GPT-5.5, its first fully retrained base model

OpenAI on April 24, 2026, released GPT-5.5, calling it the company’s first base model trained entirely from scratch rather ...

OpenAI unveils GPT-5.5 to field tasks with limited instructions

The ChatGPT maker on Thursday unveiled GPT 5.5, a new model that it says is better at aiding scientists, streamlining ...
eWeek

OpenAI Launches GPT-5.5 to Take on Messier Workloads

OpenAI launches GPT-5.5, a new model built for coding, research, data analysis, computer use, and complex work with less hand ...
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OpenAI launches GPT-5.5 to boost AI reliability

OpenAI has unveiled GPT-5.5, a significant refinement to ChatGPT aimed at improving multi-step reasoning, context retention, and task reliability. The update focuses on reducing back-and-forth ...

Chatbots take a back seat as new GPT-5.5 model focuses on getting work done

OpenAI is pushing AI beyond chat with the recent release of GPT-5.5, a model designed to complete multi-step work instead of ...

OpenAI teases GPT-5.5 model upgrade for ChatGPT in cryptic message

OpenAI is expected to be nearing an announcement around GPT-5.5, its next model upgrade to ChatGPT. A cryptic post ...
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OpenAI briefs governments on GPT-5.4-Cyber’s security potential

OpenAI is presenting its new GPT-5.4-Cyber model to U.S. federal agencies, state governments, and Five Eyes allies, ...