Gemini 3.5 Flash for agentic work
Create an agent or open an existing agent in the builder, then follow the steps below. Model and feature availability may depend on your plan.
What it does
Gemini 3.5 Flash arrived, tuned for workflows where an agent chains several tool calls together.
Before this
An addition to the selector. Gemini 3.1 Flash Preview was already the cheap Google option; 3.5 Flash is the one tuned for chaining tool calls, which is where the cost of an agentic workflow actually accumulates.
Why it matters
Fast and cheap enough to sit inside a loop, which is where the cost of an agentic workflow usually gets away from you.
The specs
- Context
- 1,048,576 tokens in, up to 65,536 out.
- Input
- Text and images.
- Actions
- Supported.
- Reasoning
- Fastest ($) through Smartest ($$$$) — it is one of the few models with a genuinely cheap bottom tier.
- Plans
- Every plan.
The cost of an agentic workflow is the number of model calls times the price of each, so the model that sits inside the loop matters more than the one that writes the final answer. Flash is cheap enough to be that model.