Local AI Advisor

Can MacBook Air M2 8 GB run Gemma 4 31B?

8 GB unified · 100 GB/s memory bandwidth · Gemma 4 31B has 31.3B parameters.

Short answer

No. It doesn't fit in memory.

Needs ≈16 GB but only ≈0.5 GB is available after the OS, other apps and Open WebUI.

Why it doesn’t fit

Even its smallest practical version (3-bit) needs about 16 GB for the model, its context memory and the runtime. After macOS (≈3.5 GB), a browser with a few tabs (≈3.0 GB) and Open WebUI (≈1.0 GB), MacBook Air M2 8 GB has about 0.5 GB left, so it’s 15 GB short.

Ways to make it work

  • Close everything else

    Not enough on its own: with every other app closed it’s still about 12 GB short.

  • Pick a smaller model from the same family

    No smaller Gemma 4 model in our catalog runs well here. See the other models below.

  • Get more memory

    You’d want at least 23 GB of memory in total. The machines below are the cheapest that run it comfortably.

  • Check your exact setup

    These pages assume typical settings. A shorter context or a lighter chat app can change the answer.

    Check MacBook Air M2 8 GB

The same applies to every workload we rate (chat, coding questions, coding in a repository, agentic coding and long documents): they all need at least as much memory as chat.

Other models for MacBook Air M2 8 GB

The best-rated models for chat on this machine.

Nothing runs well next to other apps on this machine. With everything else closed, try MiniCPM5 2B, Llama 3.2 3B Instruct or Qwen3.5 4B; expect it to feel tight.

Everything MacBook Air M2 8 GB can run

Cheapest machines for Gemma 4 31B

Hardware rated comfortable or better for chat, lowest price first.

Same chip, other memory: 16 GB, 24 GB

Different tool, context size or workload?

These pages use typical settings. The full check models your exact setup.

Open sourceCheck my exact setup