Gemini 2.5 Pro Preview (I/O edition) is available via the Gemini API and Google’s Vertex AI and AI Studio platforms, and is priced the same as the Gemini 2.5 Pro model it effectively replaces. It’s also in Google’s Gemini chatbot app for the web and for mobile devices.

The model’s release comes ahead of Google’s annual I/O developer conference (hence the “I/O edition” designation), where Google is expected to unveil a host of models, as well as AI-powered tools and platforms. The company is competing fiercely for mindshare and marketshare in the cutthroat AI race; rivals like OpenAI and xAI are on the cusp of releasing models that are expected to be highly performant.

According to Google, Gemini 2.5 Pro Preview (I/O edition) has “significantly” improved capabilities for coding and building interactive web apps. The model is also better at tasks like code transformation — that is, modifying a piece of code to achieve a specific goal — and code editing, the company says.

In a blog post, Google notes that Gemini 2.5 Pro Preview (I/O edition) leads the WebDev Arena Leaderboard, a benchmark measuring a model’s ability to create aesthetically pleasing and functional web apps. Gemini 2.5 Pro Preview (I/O edition) also has state-of-the-art performance in video understanding, achieving a score of 84.8% on one popular benchmark, VideoMME.

“For developers already using Gemini 2.5 Pro, this new version will not only improve coding performance but will also address key developer feedback including reducing errors in function calling and improving function calling trigger rates,” wrote Google in its blog post. “By default, the model has a real taste for aesthetic web development while maintaining its steerability.”