Google's Gemini 3.5 Flash is 4x faster than other frontier models. Here is how to call it from TypeScript.

Google's Gemini 3.5 Flash is 4x faster than other frontier models. Here is how to call it from TypeScript.

Google shipped Gemini 3.5 Flash on May 19 at Google I/O 2026. The headline claim is four times faster output tokens per second compared to other frontier models. That is not a marketing tier label. The claim is a throughput number, and for latency-sensitive work like streaming chat, code generation, or agentic loops, it changes what is worth reaching for.

Here is what the model actually is, how to wire it up in TypeScript, and what the cost and rate limit picture looks like before you depend on it in production.

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