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Build a Local-First AI Agent with Ollama - No API Keys, No Cloud, No Signup

Fazm Team··3 min read
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Build a Local-First AI Agent with Ollama

The most common friction point with AI tools is setup. Create an account. Add a credit card. Generate an API key. Configure rate limits. Handle billing alerts.

What if you could skip all of that?

With Ollama running on your Mac, you can run AI models locally with zero cloud dependency. No account. No API key. No credit card. No data leaving your machine. Just download and run.

The Setup

# Install Ollama
brew install ollama

# Pull a model
ollama pull qwen2.5:14b

# It is running
ollama list

That is the entire setup. The model runs on your Apple Silicon GPU. Inference stays on your machine. Your data never touches a remote server.

What Works Well Locally

For desktop automation tasks - the kind where an agent fills in forms, navigates apps, and executes multi-step workflows - local models in the 7-14B range are surprisingly capable. They handle:

  • Action planning. "Open Safari, go to this URL, click this button" - straightforward sequences that smaller models handle reliably.
  • Text extraction. Reading structured data from screen content and reformatting it.
  • Simple reasoning. Deciding which app to open, which field to fill, what value to enter.

Where local models struggle:

  • Complex multi-step reasoning. A 20-step workflow with branching logic might need a larger model.
  • Nuanced writing. Drafting a sensitive email or crafting a specific tone - cloud models are still better here.
  • Vision tasks. Local vision models exist but are significantly behind cloud offerings.

The Hybrid Approach

You do not have to choose one or the other. Fazm supports both local models via Ollama and cloud models like Claude. The practical approach:

  • Local for routine tasks. Form filling, app navigation, file organization - run these on Ollama with zero latency and complete privacy.
  • Cloud for complex tasks. Multi-step reasoning, nuanced text generation, vision-heavy workflows - use Claude when accuracy matters more than privacy.
  • Your choice, per task. There is no reason to commit to one approach for everything.

Getting Started with Fazm + Ollama

  1. Install Ollama and pull a model
  2. Download Fazm and build it
  3. Set the model provider to Ollama in settings
  4. Start automating - fully local, fully private, no API keys

Fazm supports both Ollama (local) and Claude (cloud) for maximum flexibility. Open source on GitHub. Discussed in r/ollama.

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