Gemini 3.8 Flash as a coding agent in your terminal

Gemini 3.8 Flash by Google, one of 250+ models you can use in Darce, the open source AI coding agent you can undo.

ModelGemini 3.8 Flash
VendorGoogle
Model idgoogle/gemini-3.8-flash
Context window1.05M tokens
Price per 1M tokens$0.75 input · $3.75 output (OpenRouter)
Can dotool calling · reads images · reasoning
CategoryFast and cheap

Strengths

A fast Gemini Flash model with a 1M token context. A good everyday choice when speed matters.

OpenRouter's description:

Gemini 3.8 Flash is Google's most intelligent Flash model with significant gains from 3.7 Flash across software engineering, agentic tasks, and multi-step reasoning.

Use Gemini 3.8 Flash as a coding agent in your terminal

Start Darce in your project with Gemini 3.8 Flash:

npm install -g darce-cli
darce --model google/gemini-3.8-flash

Already in a session? Type /model google/gemini-3.8-flash, or open the picker with Ctrl+P. Darce then reads your code, edits files and runs commands with Gemini 3.8 Flash; risky commands ask first, and /undo reverses any change, including what shell commands did. No account yet? npx darce-cli lets you try it free. Which plan includes which models is on the pricing page.

Make it your default or a gear

In ~/.darcerc, set it as the starting model or add it to the gears you move between with Shift+↑ / Shift+↓ (see configuration):

{
  "router": { "default": "google/gemini-3.8-flash" },
  "gears": ["qwen/qwen3-coder", "google/gemini-3.8-flash"]
}

Compare it on your own code

Benchmarks rarely match your repository. Race Gemini 3.8 Flash against two other models on a real task and keep the best diff:

/derby --models google/gemini-3.8-flash,google/gemini-3.1-pro-preview,google/gemini-3.5-flash-lite fix the failing test

Read more about /derby and /swarm.

Related models

All models · Getting started · Claude Code alternative

Model data from OpenRouter, refreshed daily. Prices are OpenRouter's list rates and show relative cost; your Darce allowance is used in proportion to them.