Google launches the most powerful "autonomous agent and program development" model Gemini 3.5 Flash! Writes an operating system in 12 hours, at a cost of less than $1000

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A brand-new powerful tool for AI developers has arrived! At the Google I/O 2026 conference on the 19th, Google officially announced the new Gemini 3.5 model family, with Gemini 3.5 Flash being the first to reach General Availability (GA). This lightweight beast, focused on "autonomous agents and software development," not only outperforms the Gemini 3.1 Pro but also boasts speeds four times faster than its peers. During the event, Google flexed its muscles by demonstrating how to use Gemini 3.5 Flash to build a complete operating system in under 12 hours for "less than $1,000." (Context: Google launches new AI laptop, Googlebook: Deeply integrated with Gemini, in partnership with Acer, ASUS, Dell, HP, and Lenovo, hitting shelves this fall.) (Background: Google signs a $200 million AI military contract with the Pentagon to implement Gemini; 600 employees protest to no avail.) At the developer conference, Google officially unveiled the next-generation Gemini 3.5 model family to the world and announced that Gemini 3.5 Flash, which focuses on high cost-performance and ultra-fast speeds, is now fully available. Google's counterattack in the AI model field is fast and fierce! Just 1 hour until #GoogleIO 2026! 🎉 Join us live at 10 a.m. PT. to hear from Google leaders like @SundarPichai, @DemisHassabis, Liz Reid and @JoshWoodward live from Shoreline. Tune in ↓ https://t.co/ZN8RPz3bw8 pic.twitter.com/ggLeZ6s84D — Google (@Google) May 19, 2026 In previous versions, the Flash series was positioned as a lightweight, fast base model, but this Gemini 3.5 Flash has undergone an epic transformation. Google positions it as its "strongest agentic and coding" model to date. Official data shows that Gemini 3.5 Flash provides near-flagship reasoning capabilities, outperforming its massive predecessor, Gemini 3.1 Pro, in handling complex agentic workflows, code generation, and multimodal tasks. Beyond intelligence, it possesses overwhelming speed and cost advantages: - Extreme Speed: Processing speeds reach 4x that of comparable frontier models. - Ultra-low Cost: Despite the significant performance leap, its computational cost is often less than half that of competitors, making it particularly suitable for application scenarios requiring high-frequency calls, long context, and complex agent collaboration. Meet Gemini 3.5 Flash — our strongest agentic and coding model yet. It delivers frontier-level performance at 4x the speed of comparable frontier models — often at less than half the cost. Generally available, starting today. 🧵#GoogleIO pic.twitter.com/jLhqozutwG — Google (@Google) May 19, 2026 To prove Gemini 3.5 Flash's prowess in handling complex software engineering, Google showcased a jaw-dropping demo at the event. The development team used Gemini 3.5 Flash combined with the Antigravity 2.0 framework to deploy 93 parallel sub-agents. These AI agents processed 2.6 billion tokens in just 12 hours, successfully building a "functional operating system" from scratch. Even more astonishingly, the total API call cost to complete this massive project was less than $1,000. Regarding API pricing, which developers care about most, the rates for Gemini 3.5 Flash are approximately: - Input: ~$1.50 per million tokens - Output: ~$9.00 per million tokens Although the price is slightly higher than the previous generation Gemini 3 Flash, considering its near-flagship reasoning capabilities and agent collaboration level, this pricing remains highly disruptive in the market. Google also teased that the 3.5 family release is just the beginning. In addition to the lead-off Flash version, the company will soon launch the Gemini 3.5 Pro with superior reasoning capabilities, as well as lighter variants like Lite, providing developers with more flexibility when building next-generation AI applications.

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