Run Yi 6B Chat on iPhone, iPad & Mac
Multilingual dialogue and reasoning model fine-tuned from Yi 6B
Yi 6B Chat runs 100% private on iPhone, iPad & Mac inside Private LLM — no internet connection required, no data sent to any server.
Model on Hugging Face
Specifications
- Parameters
- 6.1B
- Context window
- 4K tokens
- License
- Apache 2.0
- Quantization
- OmniQuant 4-bit
- Family
- Yi 6B
What Yi 6B Chat is good at
Yi 6B Chat is a bilingual conversational model that works well with English and Chinese. It has 6.1 billion parameters and handles up to 4096 tokens of context at a time. Part of the open-source Yi family from 01.AI, the model is free to use under the Apache 2.0 license for personal, academic, or commercial projects. It was fine-tuned to follow instructions and generate responses across tasks like dialogue, creative writing, and simple reasoning. Quantized versions are available to help it run on consumer-grade hardware.
Which of your devices can run it
iPhone
iPad
Mac
How to run Yi 6B Chat in Private LLM
- Download Private LLM from the App Store.
- Open the in-app model library and choose Yi 6B Chat.
- Download the model once, then chat fully offline.
Variants & related models
Cerbero 7B
Multilingual Italian comprehension and sentiment fine-tune of Mistral 7B
DictaLM 2.0 Instruct
Hebrew-first multilingual chat and translation model based on Mistral 7B
Leo Mistral Hessian AI 7B
Multilingual writing, explanation, and discussion finetune of Mistral 7B
RakutenAI 7B Chat
Multilingual assistant with top Japanese scores, Mistral 7B based
Yi 34B Chat
Multilingual English-Chinese chat and translation using Yi 34B
Frequently asked questions
Yes. Yi 6B Chat runs on iPhone models with enough memory, such as iPhone 17 Pro Max, iPhone 17 Pro, iPhone Air, iPhone 17, iPhone 16 Pro / 16 Pro Max, iPhone 16 / 16 Plus, iPhone 16e, iPhone 15 Pro / 15 Pro Max, iPhone 15 / 15 Plus, iPhone 14 / 14 Plus / 14 Pro / 14 Pro Max, iPhone 13 Pro / 13 Pro Max, iPhone 12 Pro / 12 Pro Max, fully on-device in Private LLM — no internet connection required.
Yes. Yi 6B Chat 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), MacBook Pro (M4 Max, 36GB), Mac (Apple Silicon, 32GB), MacBook Air (M4, 24GB), MacBook Air (M-series, 16GB), Mac (Apple Silicon, 8GB), fully on-device in Private LLM.
Yes. Once downloaded in Private LLM, Yi 6B Chat 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 Yi 6B Chat in Private LLM
Private LLM has run local AI on iPhone, iPad, and Mac since 2023, well before Apple Intelligence, LM Studio, Ollama, etc. existed. Inference happens on your device, so your Yi 6B Chat 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 Yi 6B Chat's Hugging Face model card, released under the Apache 2.0 license. Private LLM ships its own quantized models, built with OmniQuant quantization tuned per model, and isn't affiliated with the model's authors.