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Importing a fine tuned adapter from Safetensors weights

First, create a Modelfile with a FROM command pointing at the base model you used for fine tuning, and an ADAPTER command which points to the directory with your Safetensors adapter: 
FROM <base model name>
ADAPTER /path/to/safetensors/adapter/directory
Make sure that you use the same base model in the FROM command as you used to create the adapter otherwise you will get erratic results. Most frameworks use different quantization methods, so it’s best to use non-quantized (i.e. non-QLoRA) adapters. If your adapter is in the same directory as your Modelfile, use ADAPTER . to specify the adapter path. Now run ollama create from the directory where the Modelfile was created: 
ollama create my-model
Lastly, test the model: 
ollama run my-model
Ollama supports importing adapters based on several different model architectures including:
  • Llama (including Llama 2, Llama 3, Llama 3.1, and Llama 3.2);
  • Mistral (including Mistral 1, Mistral 2, and Mixtral); and
  • Gemma (including Gemma 1 and Gemma 2)
You can create the adapter using a fine tuning framework or tool which can output adapters in the Safetensors format, such as:

Importing a model from Safetensors weights

First, create a Modelfile with a FROM command which points to the directory containing your Safetensors weights: 
FROM /path/to/safetensors/directory
If you create the Modelfile in the same directory as the weights, you can use the command FROM .. Now run the ollama create command from the directory where you created the Modelfile: 
ollama create my-model
Lastly, test the model: 
ollama run my-model
Ollama supports importing models for several different architectures including:
  • Llama (including Llama 2, Llama 3, Llama 3.1, and Llama 3.2);
  • Mistral (including Mistral 1, Mistral 2, and Mixtral);
  • Gemma (including Gemma 1 and Gemma 2); and
  • Phi3
This includes importing foundation models as well as any fine tuned models which have been fused with a foundation model.

Importing a GGUF based model or adapter

If you have a GGUF based model or adapter it is possible to import it into Ollama. You can obtain a GGUF model or adapter by:
  • converting a Safetensors model with the convert_hf_to_gguf.py from Llama.cpp;
  • converting a Safetensors adapter with the convert_lora_to_gguf.py from Llama.cpp; or
  • downloading a model or adapter from a place such as HuggingFace
To import a GGUF model, create a Modelfile containing: 
FROM /path/to/file.gguf
For a GGUF adapter, create the Modelfile with: 
FROM <model name>
ADAPTER /path/to/file.gguf
When importing a GGUF adapter, it’s important to use the same base model as the base model that the adapter was created with. You can use:
  • a model from Ollama
  • a GGUF file
  • a Safetensors based model
Once you have created your Modelfile, use the ollama create command to build the model. 
ollama create my-model

Quantizing a Model

Quantizing a model allows you to run models faster and with less memory consumption but at reduced accuracy. This allows you to run a model on more modest hardware. Ollama can quantize FP16 and FP32 based models into different quantization levels using the -q/--quantize flag with the ollama create command. First, create a Modelfile with the FP16 or FP32 based model you wish to quantize. 
FROM /path/to/my/gemma/f16/model
Use ollama create to then create the quantized model. 
$ ollama create --quantize q4_K_M mymodel
transferring model data
quantizing F16 model to Q4_K_M
creating new layer sha256:735e246cc1abfd06e9cdcf95504d6789a6cd1ad7577108a70d9902fef503c1bd
creating new layer sha256:0853f0ad24e5865173bbf9ffcc7b0f5d56b66fd690ab1009867e45e7d2c4db0f
writing manifest
success

Supported Quantizations

  • q8_0

K-means Quantizations

  • q4_K_S
  • q4_K_M

Sharing your model on ollama.com

You can share any model you have created by pushing it to ollama.com so that other users can try it out. First, use your browser to go to the Ollama Sign-Up page. If you already have an account, you can skip this step. Sign-Up The Username field will be used as part of your model’s name (e.g. jmorganca/mymodel), so make sure you are comfortable with the username that you have selected. Now that you have created an account and are signed-in, go to the Ollama Keys Settings page. Follow the directions on the page to determine where your Ollama Public Key is located. Ollama Keys Click on the Add Ollama Public Key button, and copy and paste the contents of your Ollama Public Key into the text field. To push a model to ollama.com, first make sure that it is named correctly with your username. You may have to use the ollama cp command to copy your model to give it the correct name. Once you’re happy with your model’s name, use the ollama push command to push it to ollama.com. 
ollama cp mymodel myuser/mymodel
ollama push myuser/mymodel
Once your model has been pushed, other users can pull and run it by using the command: 
ollama run myuser/mymodel

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