01What Is Google Gemini 3.5 Flash and How It Works

Google Gemini 3.5 Flash is Google's newest AI model that is four times faster than any other frontier AI. It is smarter than the previous Pro model and is free for everyone to use. This model is built for agentic tasks, which means it can plan, take actions, check its work, and finish tasks on its own.

Unlike a regular AI that just answers questions, Gemini 3.5 Flash works like a super-smart employee who never sleeps. You give it a goal, and it goes off and does the work by itself. It handles coding, building websites, and running multiple sub-agents.

It is designed for long-horizon tasks, so it can work autonomously for hours without needing you to check in.

02Key Features of Gemini 3.5 Flash

Gemini 3.5 Flash comes with several new features that make it powerful for AI agents and coding. Here are the main ones:

  • Four times faster output than other frontier AI models.
  • Outperforms Gemini 3.1 Pro on coding and agentic benchmarks.
  • Scored 76 on coding benchmarks compared to 58 for Gemini 3 Flash.
  • On agentic tasks, it achieved 83.6 percent, up from 78 for Gemini 3.1 Pro.
  • It is the default model for the Gemini app and AI mode in Google Search globally.
  • Designed for AI agents, including a new agent called Gemini Spark that runs 24/7.

03How to Set Up Google Gemini 3.5 Flash in an Agent OS

You can set up Gemini 3.5 Flash inside an agent operating system dashboard. This gives you one place to control all your AI agents. Follow these steps to get started:

  1. Open your agent OS dashboard (like the one shown in the episode).
  2. Select Gemini 3.5 Flash as your model inside the dashboard.
  3. Plug in the CLI for Google Gemini or use Open Router if the model is available there.
  4. Enter a custom model name if needed, using the details from the Gemini API.
  5. Run Hermes or your agent software to connect the model to your dashboard.
  6. Test it by sending a command like "Are you working?" to see the fast response.

The model is available to everyone for free. You do not need a paid plan to use Gemini 3.5 Flash itself, only for Spark agent.

04How to Use Gemini 3.5 Flash to Build Websites and Content

In the episode, Julian showed how to use Gemini 3.5 Flash with an agent OS to build a full website. You can give a command like "Build me a landing page for my coaching business" and the model does the rest. It generates the copy, designs the layout, creates AI images, and even deploys the website.

You can also use the forward-slash goal command to expand projects. For example, type "/goal create more blog posts" and the agent will add new content. The system stores every output in a workspace, so you can reuse files later.

Multiple agents can work in parallel. In the demo, five different agents (including anti-gravity, Hermes, Open Core, and Claude) ran side by side in one dashboard.

05Results and Benchmarks from the Episode

The episode showed clear performance numbers for Gemini 3.5 Flash. On coding benchmarks, it scored 76 points, while the previous Gemini 3 Flash scored 58. On agentic tasks, Gemini 3.5 Flash reached 83.6 percent, beating Gemini 3.1 Pro at 78 percent.

Julian tested the model by asking it to build websites. It created a full blog with AI-generated images, copy, design, and deployment. Another test showed a landing page for the AI Profit Boarding, with all HTML files ready.

The model also handled animations and long coding tasks without stopping. The speed was noticeably faster than other models.

06Tips, Limits, and Mistakes to Avoid

Here are some important tips and limits from the episode:

  • Use the right model for the job: ChatGPT helps you write, but Gemini 3.5 Flash helps you build and deploy. Do not use them for the same task.
  • You do not need to code: You can command agents by typing one sentence. No coding skills or computer science degree required.
  • Gemini Spark is limited to US users on the Google AI Ultra plan in beta. But Gemini 3.5 Flash itself is free for everyone else.
  • Update your agent software before switching models to avoid connection issues.
  • Do not wait for updates: The window to use this model is now. People who start today will build a lead that others cannot catch.

07Who Should Use Gemini 3.5 Flash and Why

Gemini 3.5 Flash is for anyone who wants to automate work with AI agents. If you run a business, build websites, or create content, this model can handle the heavy lifting. It is especially useful for people who want to run multiple AI agents in parallel from one dashboard.

The episode showed that the biggest shift is moving from using AI as a tool to commanding AI as an architect. Instead of writing content yourself, you direct agents who do all the research, coding, and deploying. This makes it a good fit for entrepreneurs, marketers, and developers who want to scale their operations without hiring more people.