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Models and system requirements

Last updated 9 October 2026

ThatPrompt runs Enhance and title suggestions on a language model that lives on your computer. You download one during setup. Setup checks how much memory your computer has and recommends the most capable model it can run.

System requirements

Operating system macOS 14 or later, Windows 10 or later
Memory 2 GB of RAM for the smallest model, 8 GB for the most capable one
Disk 610 MB to 3.1 GB for the language model, depending on which one is chosen, plus the app itself
Network Required once during setup to download the model. Enhancement works offline afterwards.

Memory here means the RAM installed in your computer, not what's free right now. A model that needs more than you have is shown but can't be picked.

The models

Model Quality Download size Needs at least
Gemma 4 E2B (Q4_0 QAT) Best 3.1 GB 8 GB of RAM
Gemma 3 1B (Q4_K_M) Balanced 769 MB 4 GB of RAM
Qwen3 0.6B (Q8_0) Basic 610 MB 2 GB of RAM
  • Gemma 4 E2B (Q4_0 QAT): Best quality. Recommended. Quantisation-aware training keeps 4-bit output close to the full model.
  • Gemma 3 1B (Q4_K_M): Balanced size and quality. A lighter alternative if disk or memory is tight.
  • Qwen3 0.6B (Q8_0): Smallest and fastest. Good baseline quality on simple prompts.

Change your model later

You can switch to a different model at any time in Settings, under Model. ThatPrompt downloads the new one, switches over once it's ready, and then removes the old one to free the disk space.

Something wrong or missing on this page? Email hello@blacklabstudios.com and it gets fixed.