When Will Gemini 3.5 Be Released By?

As the AI race kicks into high gear, Google’s Gemini 3.5 has long been teased on multiple checkpoints. The earliest mentions date back to January, when it was codenamed “Snowbunny” after it was spotted in Google AI Studio.

Fast forward to late April, and Google Cloud CEO Thomas Kurian hinted at a new version of Gemini coming “very, very soon.” More to it, as the Google I/O annual developer conference kicks off, chatter is high that the model will be released sooner-rather-than later, and prediction markets like Polymarket are taking notice. Here’s all to know and more.

Gemini 3.5 Upcoming (Soon): Leaks, Kurian Remarks, Google’s I/O Event, And More

Google’s Gemini 3.5 has been a “for-a-minute-now” buzzword in community forums since early 2026, particularly for its massive jumps in coding, agentic behavior, and multimodal output (building full apps or emulators from one prompt), if the leaks are anything to go by. This will be the latest in the Gemini 3 flagship series that kicked off in late 2025 and has since had iterations in the 3.1 series and, more recently, early leaks and access to 3.2 Flash. Now, Gemini 3.5 is touted as the next logical step, building up on these foundations to deliver all the aforementioned gains.

Better yet, it has been long coming, starting in early 2026, when it was codenamed “Snowbunny” after it was spotted in Google AI Studio. Google Cloud CEO Thomas Kurian also hinted at a new version of Gemini coming “very, very soon” while speaking during the Google Cloud Next keynote. Now, throwing in the upcoming Google I/O 2026 (Google’s developer conference), we’re likely to see a drop or preview of a 3.5-class model ahead of the official release date.

Key Factors Pointing Towards And Early Arrival For Gemini 3.5

Now that you’re well informed about the next major leap, let’s touch on why it’s likely to arrive early, and even prediction market sites concur. Here are likely key influencers:

• Growing pressure from rivals – It is an open field for the AI race, and the competition is pulling out all the stops, from OpenAI (GPT-5.x) to Anthropic, xAI, etc., on coding and agentic features. A release of Gemini 3.5 is a certainty for healthy competition.
• The infrastructure advantage – Google has the infrastructure advantage with a global data-center footprint and TPUs in the works, all point towards quicker tests and deployment than rivals.
• Enterprise and developer demand is at an all-time high for more reliable, capable models; a gap that may necessitate “sooner timelines than later” to fill.
• Lastly, the Google I/O developer conference is here, and it may be the launchpad for Gemini 3.5 and official release dates. It’s a must-watch.

Why The Release Of Gemini 3.5 Could See Extended Delays

Granted, it’s not all smooth sailing, as possible delays are still a reality if going by the following:

• The need for more rigorous safety tests could necessitate longer timelines.
• As costs become a concern, Gemini 3.5 could see extended delays to strike a balance between performance and cost.
• Lastly, it would be product alignment. Say, releasing Gemini 3.5 alongside an upcoming product for maximum visibility.

How To Trade This Event At Polymarket

The “When Will Gemini 3.5 Be Released By?” market is live on Polymarket with options for May 31, June 30, or July 31, and the trading volume is well over the $1 million mark. All you’d need to do is join in using our on-page banners, then navigate to the “Tech” page and place “Yes” or “No” contracts. Here are the latest odds:

When Will Gemini 3.5 Be Released By – Final Thoughts

The question of when Gemini 3.5 is at an all-time high on player forums, fueled by leaks, Google Cloud CEO Thomas Kuria remarks, and the Google I/O annual developer conference that will certainly drop some “bread crumps.” Add on the mounting pressure from the competition, demand for more capable models, and Google’s infrastructure advantage, and Gemini 3.5 is sure to come sooner than later. If this is well within your alley, use the on-page Polymarket banners to join in and make your predictions.