Why Google held back a huge new AI model at its big conference
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Why Google held back a huge new AI model at its big conference
Google delayed its flagship Gemini 3.5 Pro model and instead emphasized Gemini 3.5 Flash, a smaller, faster, cheaper model with near-top performance. Gemini 3.5 Flash is already the main model behind Antigravity, an AI coding service used by software developers to generate code. The service produces large amounts of anonymous, high-value data, including signals when developers stop or halt tasks after outputs appear incorrect. Google can use these feedback signals to refine and improve Gemini 3.5 Pro, likely using reinforcement learning by rewarding good outputs and punishing bad ones. Running Antigravity on the smaller model can provide useful guidance for improving the larger model.
"Google usually saves its biggest product launches for its I/O conference every year. This time, CEO Sundar Pichai held back, and it says a lot about where the company stands in the AI coding race. During the keynote address, Pichai told the crowd that Google's new flagship Gemini 3.5 Pro AI model wasn't ready yet, drawing audible groans."
"Instead of releasing 3.5 Pro, Pichai spoke at length and with passion about another new model, the Gemini 3.5 Flash. This is a smaller model that's faster and a lot cheaper, while being only slightly less powerful than the world's current top models. Google has already made 3.5 Flash the main model powering its Antigravity AI coding service. Starting today, software developers will use this tool to churn out code."
"This will generate a mountain of anonymous and highly valuable data. For instance, if an engineer starts a new coding project in Antigravity and suddenly halts the task, it suggests that something in the output from Flash 3.5 wasn't right. Google can use this feedback data to improve the larger 3.5 Pro model, likely through reinforcement learninga technique in which a new AI model is refined by rewarding good outputs and punishing bad outcomes."
"Signals from running Antigravity on the smaller 3.5 Flash model will likely help with this process in important ways. That's because coding is p"
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