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Written By Nathan Giullian

OpenAI Just Changed the Game: GPT‑OSS Now Runs Locally via Ollama

Intro
OpenAI has officially released GPT‑OSS, its first open‑weight model family in over five years—and you can run it right now on your machine using Ollama. This is not just a release; it’s a shift in how we think about AI ownership, privacy, and experimentation.

I've had Ollama installed for a while, but honestly, the models never really stuck for me—until now. With OpenAI’s architecture powering local inference, this is a whole new level of potential.

🧠 What’s New?

Two Models, One Vision

  • gpt‑oss‑20b – Optimized for consumer-grade hardware, runs with 16GB RAM

  • gpt‑oss‑120b – High-performance, enterprise-capable, fine-tunable

  • Both are Apache 2.0 licensed and fully downloadable today

With ollama run gpt-oss:20b, you’re tapping into a tool that supports chain-of-thought reasoning, tool use, even dynamic memory—all locally.

🚀 Why This Matters to Me

I’ve got the 20B model downloading already, and the 120B is on its way. I’m genuinely excited to throw different tasks at these models—prompt engineering, data analysis, agent orchestration, and more.

Here’s why this matters:

  • Homelab Integration: I can experiment freely without cloud constraints

  • Work Applications: Possibilities for secure, custom copilots at the edge

  • Community Collaboration: Anyone can build and share workflows now

📣 Let’s Experiment Together

What do you want to see from GPT‑OSS?
Are you thinking about:

  • RAG pipelines with custom data?

  • AI agents for automation?

  • Private copilots in sensitive environments?

Drop your ideas—I’m exploring all angles and would love to test some out.

✨ Big Picture

This release isn’t just about OpenAI catching up with Meta or Mistral—it’s about reclaiming control of our tools. If GPT‑OSS lives up to its promise, the days of black-box cloud-only AI could be numbered.

Call to Action:
Let’s co-create. Tell me how you’re planning to use GPT‑OSS. I'll share benchmarks, experiments, and workflows as I go.

Sources

*https://openai.com/index/introducing-gpt-oss/

*https://ollama.com/blog/gpt-oss

Nathan Giullian
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