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Google announced Gemini 2.5 Pro Preview (I/O edition) on May 6, 2025, making an updated model available to developers ahead of Google I/O. The company’s main emphasis was stronger coding capability—particularly creating interactive web apps—along with improvements to code editing, code transformation, and complex agentic workflows. It was an early-access preview, not the stable release.
What Google announced on May 6
Google said it had originally planned to release the update at I/O, scheduled for May 20, but moved it forward so developers could start building with it sooner. The announcement, attributed to Tulsee Doshi, Senior Director of Product Management, called the release “early access to Gemini 2.5 Pro Preview (I/O edition).” Google’s May 6 announcement described it as an updated version of Gemini 2.5 Pro, with coding as the headline improvement.
The “I/O edition” label identifies that particular preview release; it does not mean the model was already the final, generally available version. Google’s announcement presented it as a preview for early access.
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What Google said was improved
Interactive web app development
Google singled out building interactive web apps as the most visible coding use case. It said the update had significantly improved coding capabilities, with the goal of helping developers create compelling interactive applications.
#1 Best Overall
- Attention-grabbing design meets the latest evolution of the Google Pixel Camera on the new Google Pixel 11 Pro XL; Gemini Intelligence helps manage details so you can live in the moment[1]; and the phone is available in two sizes
- Unlocked Android phone gives you the flexibility to change carriers and choose your own data plan: Works with Google Fi, Verizon, T-Mobile, AT&T, and other major carriers[2]
- Stay informed without looking at your screen: When your phone is face down, Pixel HiLight gently alerts you with subtle glowing lights when your favorite contacts are calling or you’re talking with Gemini; exclusive to Google Pixel 11 Pro phones
- Magic Capture catches the moment as you live it: With just one tap, Pixel 11 Pro captures video and photos, and automatically edits, crops, and unblurs a curated collection, ready to share – and you get the memory of how it felt to be in the moment
- Two new cameras for more brilliant photos: A larger telephoto sensor captures 30% more light for clear, beautiful photos and videos, even in the dark[3]; Pixel’s longest zoom ever helps you capture details from impressive distances[4]
Other coding and agentic tasks
The May 6 announcement also cited code transformation, code editing, and complex agentic workflows. These are Google’s descriptions of the update; the announcement did not provide independent test results establishing how much better it performs on each task.
Where developers could try it
Google named Gemini API access through Google AI Studio and Vertex AI as routes for developers. These are the platforms identified in the subsequent June 5 update announcement, which also said its upgraded preview was rolling out in the Gemini app. Availability can vary by product and rollout; the announcements do not establish access in every region or account.
Rank #2
- Google Pixel 10a is a durable, everyday phone with more[1]; snap brilliant photography on a simple, powerful camera, get 30+ hours out of a full charge[2], and do more with helpful AI like Gemini[3]
- Unlocked Android phone gives you the flexibility to change carriers and choose your own data plan; it works with Google Fi, Verizon, T-Mobile, AT&T, and other major carriers
- Pixel 10a is sleek and durable, with a super smooth finish, scratch-resistant Corning Gorilla Glass 7i display, and IP68 water and dust protection[4]
- The Actua display with 3,000-nit peak brightness shows up clear as day, even in direct sunlight[5]
- Plan, create, and get more done with help from Gemini, your built-in AI assistant[3]; have it screen spam calls while you focus[6]; chat with Gemini to brainstorm your meal plan[7], or bring your ideas to life with Nano Banana[8]
How the preview changed after May 6
| Release | Stage and timing | Google-described changes | Access mentioned by Google |
|---|---|---|---|
| Gemini 2.5 Pro Preview (I/O edition) | Early-access preview announced May 6, 2025, ahead of Google I/O. | Coding, especially interactive web apps; code transformation, code editing, and complex agentic workflows. | Google framed the release as early access for developers. |
| Upgraded Gemini 2.5 Pro preview | Announced June 5, 2025. Google said the stable version would begin rolling out “in a couple of weeks.” | Google said it improved response style and structure, with more creative and better-formatted responses, as well as further model improvements. | Gemini API through Google AI Studio and Vertex AI; rollout in the Gemini app. |
At Google I/O on May 20, Google also discussed changes across Gemini 2.5 Pro and Flash and introduced Deep Think as an experimental enhanced reasoning mode for Pro. That was a later announcement about the model family, not a reason to treat the May 6 I/O edition preview as a stable release. Google’s I/O 2025 update describes those announcements.
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Fix the driver behind crashes, sound loss and screen glitchesFind Drivers →Clear out junk files and repair common Windows errorsFree Scan →On June 5, Google said the upgraded preview would become the stable version starting in a couple of weeks. The June announcement is the basis for that statement; it does not establish the date on which the stable rollout was completed. Google’s June 5 update also reported leaderboard results: a 24-point Elo increase to 1470 on LMArena and a 35-point increase to 1443 on WebDevArena. Those are Google-reported figures from its announcement, not independently reproduced measurements here.
Rank #3
- Google Pixel 10 Pro is the ultimate Pixel experience, featuring advanced AI with Gemini, unbelievable camera quality, impeccable design in two sizes, and the next-gen Google Tensor G5 chip[1]
- Unlocked Android phone gives you the flexibility to change carriers and choose your own data plan[2]; it works - Google Fi, Verizon, T-Mobile, AT&T, and other major carriers
- Get a head start on syncing your data before it even arrives: After you purchase your new Pixel, look for an email that explains how to transfer your photos, videos, passwords, and more in just a few quick steps[11]
- Pixel’s pro camera system makes everything look amazing, even in low light; capture more of the scene with advanced Google AI models, and bring out incredible details with 100x Pro Res Zoom, stunning 50 MP images, and super steady videos in 8K[10]
- Pixel 10 Pro is built with durable aluminum and Corning Gorilla Glass Victus 2 for scratch and drop resistance; the 6.3-inch Super Actua display with 3,300-nit peak brightness is easy on the eyes, even in direct sunlight[3,13,18]
What the model identifiers mean
Google’s Gemini API reference currently identifies the model code as gemini-2.5-pro and lists June 2025 as its latest update. That is distinct from the older preview identifier gemini-2.5-pro-preview-03-25, which Google’s deprecations page lists with a December 2, 2025 shutdown date and gemini-3.1-pro-preview as the recommended replacement. The lifecycle entry for that older preview should not be read as the shutdown date for the API reference’s gemini-2.5-pro model code. See the Gemini API model reference and Gemini API deprecations page for Google’s current documentation.
Quick Recap
Best Value
- Google Pixel 10 is the everyday phone unlike anything else; it has Google Tensor G5, Pixel’s most powerful chip, an incredible camera, and advanced AI - Gemini built in[1]
- Unlocked Android phone gives you the flexibility to change carriers and choose your own data plan[2]; it works with Google Fi, Verizon, T-Mobile, AT&T, and other major carriers
- Unlocked Android phone gives you the flexibility to change carriers and choose your own data plan[2]; it works - Google Fi, Verizon, T-Mobile, AT&T, and other major carriers
- The upgraded triple rear camera system has a new 5x telephoto lens - up to 20x Super Res Zoom for stunning detail from far away; Night Sight takes crisp, clear photos in low-light settings; and Camera Coach helps you snap your best pics[3]
- Pixel 10 is designed - scratch-resistant Corning Gorilla Glass Victus 2 and has an IP68 rating for water and dust protection[21]; plus, the Actua display - 3,000-nit peak brightness is easy on the eyes, even in direct sunlight[4]
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