Gemini 3 Flash is now available in Gemini CLI

来源： Google Developers Blog

原文链接： https://developers.googleblog.com/gemini-3-flash-is-now-available-in-gemini-cli/

抓取时间： 2026-04-23

原始语言： 英文

DEC. 17, 2025

Gemini 3 Flash is now available in Gemini CLI, supporting high-frequency workflows common to terminal-based work. Gemini 3 Flash achieves a SWE-bench Verified score of 78% for agentic coding, outperforming not only the 2.5 series, but also Gemini 3 Pro. Gemini 3 Flash was built to be highly efficient, pushing the Pareto frontier of quality vs. cost and speed and is available in preview at less than a quarter the cost of Gemini 3 Pro.

Start using Gemini 3 Flash with Gemini CLI

Starting today, most paid tier customers of Gemini CLI have access to both Gemini 3 Pro and Gemini 3 Flash, including:

All non-business customers of Google AI Pro or AI Ultra
Users who have access using a paid API key through Google AI or Vertex
Gemini Code Assist users that have been enabled by their cloud admin for preview models

Get started by upgrading Gemini CLI version to the latest version (0.21.1):

npm install -g @google/gemini-cli@latest

After you've confirmed your version is 0.21.1 or later, run /settings, then toggle the setting "Preview features" to true. Once you've enabled preview features, run /model to select Gemini 3.

Build anything in the terminal with improved agentic coding

Gemini 3 Flash raises the performance floor of your coding sessions with strong performance in reasoning, tool use, and multimodal capabilities.

Action code changes from large context windows

In this demo, Gemini 3 Flash processes a simulated pull request thread containing 1,000 comments. It successfully cuts through pages of "bikeshedding" to locate a single critical request regarding a timeout adjustment. Gemini CLI then applies the precise update to the configuration file on the first try.

Simulate realistic user traffic for stress testing

Gemini 3 Flash generates a Python script using asyncio to simulate concurrent users across three distinct scenarios: "Successful Order," "Payment Failed," and "Inventory Timeout." When the initial execution returns protocol errors, the model instantly analyzes the traceback and patches the script.

Stay in the flow longer

Gemini 3 Flash provides a new performance baseline for high-frequency development tasks in the terminal. Based on Artificial Analysis benchmarking, Gemini 3 Flash outperforms 2.5 Pro while being 3x faster at a fraction of the cost.

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