Run Cat Llama 3 70B Instruct on Mac
Cat Llama 3 70B Instruct runs 100% private on Mac inside Private LLM — no internet connection required, no data sent to any server.
Download the quantized weights
These are the exact OmniQuant weights Private LLM runs for Cat Llama 3 70B Instruct, published on our Hugging Face org. They're standard weights you can load in any app that supports the format, not just Private LLM.
Specifications
- Parameters
- 70.6B
- Context window
- 8K tokens
- License
- Llama 3
- Quantization
- OmniQuant 3-bit, OmniQuant 4-bit
- Family
- Llama 3 70B
What Cat Llama 3 70B Instruct is good at
Cat Llama 3 Instruct is a fine-tuned version of the Llama 3 70B model. It is designed to closely follow system prompts, provide helpful answers, and create immersive role-playing experiences. The model is particularly good at handling detailed instructions, step-by-step reasoning, and topics in biosciences.
Which of your devices can run it
Mac
How to run Cat Llama 3 70B Instruct in Private LLM
- Download Private LLM from the App Store.
- Open the in-app model library and choose Cat Llama 3 70B Instruct.
- Download the model once, then chat fully offline.
Variants & related models
Frequently asked questions
Cat Llama 3 70B Instruct is too large for current iPhones. It runs on Mac with enough unified memory inside Private LLM, fully offline.
Yes. Cat Llama 3 70B Instruct runs on Macs with enough unified memory, such as Mac (Apple Silicon, 192GB), MacBook Pro (M4 Max, 128GB), Mac Studio / Pro (Apple Silicon, 96GB), MacBook Pro (M4 Max, 64GB), MacBook Pro (M4 Max, 48GB), fully on-device in Private LLM.
Yes. Once downloaded in Private LLM, Cat Llama 3 70B Instruct runs 100% on-device — no internet connection, and nothing is sent to any server.
Private LLM is a one-time purchase with no subscription and no per-message cost. The models themselves are open source — once downloaded, they run offline with nothing to pay per use.
Why run Cat Llama 3 70B Instruct in Private LLM
Private LLM has run local AI on iPhone, iPad, and Mac since 2023, before Apple Intelligence existed. Inference happens on your device, so your Cat Llama 3 70B Instruct conversations never reach a server. The part most apps gloss over is quantization, and that is exactly where on-device quality is won or lost. Most llama.cpp and MLX wrappers ship the same off-the-shelf 4-bit RTN weights. Private LLM ships GPTQ and OmniQuant quantization, tuned per model, and our 3-bit OmniQuant models match or beat those 4-bit RTN builds on the same Apple Silicon. Run the same model both ways and you feel it in the first reply. See how our quantization works.
Specifications and summary come from Cat Llama 3 70B Instruct's Hugging Face model card, released under the Llama 3 license. Private LLM ships its own quantized models, built with OmniQuant quantization tuned per model, and isn't affiliated with the model's authors.