Gemini 3.5 Flash Free: The New Default AI You’re Already Using
Gemini 3.5 Flash is the headline AI upgrade from Google I/O, and it’s already free for everyone. Google describes it as the first model in the Gemini 3.5 family, designed to be both fast and capable. It reportedly outperforms the previous 3.1 Pro model on coding and agentic benchmarks, while also leading in multimodal understanding. Because it is a “Flash” model, it focuses on speed, with Google claiming it can be up to four times faster than other frontier models. You don’t need a paid AI subscription to try Gemini 3.5 Flash. It now powers both the Gemini app and core Google Search AI experiences, so if you’ve used Gemini or AI features in Search since the announcement, you have likely interacted with this model already. That makes Gemini 3.5 Flash free and instantly accessible as one of the key Google I/O free features.
AI Mode and Intelligent Search: Smarter Queries at No Cost
Google is reshaping Search around AI, and parts of that new experience are already rolling out for free. When you enable AI Mode in the Search box, Google now taps Gemini 3.5 Flash to power a new “Intelligent Search” experience. As you type more conversational prompts—such as exploring new hobbies or planning activities—Search suggests follow-up questions you might not have considered, helping you refine what you’re really looking for. This Intelligent Search box is multimodal, meaning you can search using images, files, videos, or even Chrome tabs in addition to text. The rollout has started, so it may or may not be visible in your account yet, but there is no extra setup beyond using Google Search as usual. For anyone curious about free AI tools Google is offering, this smarter, suggestion-driven search flow is one of the most important Google I/O free features available now.
AI Overviews: Turn Search Results into an Ongoing AI Chat
AI Overviews in Google Search have been controversial, but if you like AI-powered summaries, they have become easier to use after Google I/O. When an AI Overview appears at the top of your results, you can now expand it to reveal a chat box at the bottom of the window. This lets you jump directly into AI Mode and continue the conversation instead of running one-off searches. You can ask follow-up questions, request clarifications, or explore related topics in a single thread, all powered by the free Gemini 3.5 Flash model. While accuracy remains a concern and users should still double-check important information, this update turns AI Overviews from static summaries into interactive AI sessions. For everyday users looking for Google I/O free access to generative AI, this conversational layer inside standard Search is one of the easiest ways to experiment without signing up for subscriptions.
Gemini App Upgrades: A Fresh Interface for Free Everyday AI
Beyond Search, the Gemini app itself has been refreshed and is now running on Gemini 3.5 Flash by default. That means when you open the app to chat, brainstorm, or generate content, you’re using Google’s latest free AI model automatically. You can test its speed and multimodal capabilities with typical everyday tasks, like drafting messages, summarising text, or exploring coding ideas, all without upgrading to a paid tier. Google has also introduced a new “Neural Expressive” design to the Gemini app. The interface now features updated animations, colours, typography, and haptic feedback for a more dynamic feel compared to the older design. While this visual overhaul doesn’t change what the model can do, it does make the experience feel more modern and responsive. Combined, the upgraded UI and underlying Gemini 3.5 Flash engine make the Gemini app one of the most approachable free AI tools Google has released following I/O.
What’s Coming Next: Free Features to Watch After I/O
Not every Google I/O announcement is ready today, and many advanced features will require paid AI subscriptions. However, several notable updates are on the way that will include Google I/O free access for regular users. Google plans to roll out Universal Cart in Search, letting you add items from multiple stores into a single digital cart, available to everyone when it launches. Agents are also coming to Search, helping users book things like restaurant reservations or private karaoke rooms directly from results. While some “information agents” will be reserved for paid Gemini tiers, free users will still gain access to booking-related agents. In addition, Google is preparing agentic coding experiences powered by Gemini 3.5 Flash. These will build interactive elements—such as real-time demos—based on your questions, and they are expected to be free when they arrive. Together, these upcoming tools will expand the list of free AI tools Google offers beyond what you can try immediately.