Gemini 3.5 Flash in Google Antigravity

Gemini 3.5 Flash delivers frontier performance for agents and coding, excelling at complex long-horizon tasks that deliver real-world utility, and is the default Gemini Flash model in Google Antigravity.

Don’t let the name “Flash” mislead you when it comes to raw model power for complex, agentic tasks. As we showed in our exploration of agent teams, we have seen Antigravity’s agents build complex systems from scratch, such as a fully operational OS, using only Gemini 3.5 Flash. The Antigravity agent harness and Gemini 3.5 Flash have been co-optimized, making Google Antigravity one of the most powerful ways to leverage Gemini 3.5 Flash.

The Antigravity Flash Experience

Gemini 3.5 Flash in Antigravity balances performance and speed. Normally, Gemini 3.5 Flash is 4x faster than other models with frontier intelligence. For a limited time, Antigravity is serving Gemini 3.5 Flash 12x faster (not just 4x faster), thanks to further inference tricks, so you get truly incredible speed.

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Building with Gemini 3.5 Flash.

As we ask these agents to do more, latency compounds, and the Gemini 3.5 Flash experience in Antigravity helps get results faster, whether you are working with the agents in-the-loop, or having them tackle tasks asynchronously with the new Scheduled Tasks feature.

And with a lower compute footprint than larger models, Gemini 3.5 Flash allows you to have longer extended work sessions before hitting rate limits, making it more practical for everyday, heavy usage.

Getting Started

Experience more intelligent, faster agentic work at scale with Gemini 3.5 Flash. Get started with Google Antigravity 2.0: