Create a Modelfile with your system prompt and parameters.
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The Ollama Modelfile Generator builds a Modelfile for running a model with your own defaults. Specify the base model, system prompt, temperature, and context length, and the generator returns a Modelfile you can save and build into a local model. It is for developers who want reproducible local configuration instead of retyping options on every run. It works with the model tags your Ollama installation supports.
A Modelfile is Ollama's configuration format for a model. It names the base model and sets parameters such as the system prompt, temperature, context window, and stop sequences, so a custom model can be rebuilt consistently from one file.
Lower values around 0.2 suit extraction, classification, and code, where consistency matters. Higher values around 0.7 to 0.9 suit brainstorming and creative writing. Start low and raise it only if outputs feel repetitive.
Yes. A Modelfile is plain text and portable between machines with Ollama installed. If it references a public base model tag, anyone can build the same configuration locally, which makes it useful for teams standardizing local setups.
Canonical pricing and plans: plugsky.com/#sec-pricing · Terms · SLA · Docs