{"id":4378,"date":"2025-03-12T11:38:06","date_gmt":"2025-03-12T18:38:06","guid":{"rendered":"https:\/\/www.microsoft.com\/en-us\/microsoft-copilot\/blog\/?post_type=copilot&p=4378"},"modified":"2026-01-16T13:18:43","modified_gmt":"2026-01-16T21:18:43","slug":"announcing-limited-preview-gpt-4-5-microsoft-copilot-studio","status":"publish","type":"copilot","link":"https:\/\/www.microsoft.com\/en-us\/microsoft-copilot\/blog\/copilot-studio\/announcing-limited-preview-gpt-4-5-microsoft-copilot-studio\/","title":{"rendered":"Announcing a Limited Preview of GPT-4.5 in Copilot Studio"},"content":{"rendered":"\n

The pace of innovation in AI continues to accelerate, and Microsoft Copilot Studio<\/a> plays an important role in bringing the best AI innovations into a platform that helps you solve business problems at scale. <\/p>\n\n\n\n

To that end, we are always experimenting with new technologies to improve agent experiences, including the latest model innovations. We\u2019re excited to share that Copilot Studio is actively testing GPT-4.5, the latest AI model from OpenAI, to power generative answer experiences. <\/p>\n\n\n\n

Today, we are making GPT-4.5 available to customers through a limited preview.<\/strong> Users will have the opportunity to explore the capabilities of Copilot Studio agents powered by GPT-4.5 on an agent-by-agent basis. If you would like to explore GPT-4.5 in Copilot Studio and register your interest in the preview, click here<\/a>.<\/p>\n\n\n

\"A<\/figure>\n\n\n\n
\n

\u201cEarly testing shows that interacting with GPT4.5 feels more natural. Its broader knowledge base, improved ability to follow user intent, and greater ‘EQ’ make it useful for tasks like improving writing, programming, and solving practical problems. We also expect it to hallucinate less.\u201d – OpenAI <\/a><\/em><\/p>\n<\/blockquote>\n\n\n\n

<\/div>\n\n\n\n

We recognize that GPT-4.5 is one of many models, and we remain committed to enabling makers to use your model of choice in your agents – whether that’s one of the more than 1,800 models in Azure AI Model Catalog, a custom model built in Azure AI Foundry, or a model fine-tuned on your business data. <\/p>\n\n\n\n

We look forward to sharing more about model choice and innovation in Copilot Studio at Microsoft Build<\/a> in May 2025. Of course, models are only one part of an agent, so keep an eye out\u2014we have much more to share about new Copilot Studio capabilities in the coming weeks. <\/p>\n\n\n\n