Modelfile
A declarative model configuration file used by Ollama, analogous to Docker's Dockerfile. It allows users to rapidly create custom models by specifying a base model, parameters, system prompts, and other settings in a structured configuration format.
Timeline (last 90 days)
Each model in Ollama comes with a Modelfile, in which the TEMPLATE directive defines how the system prompt, multi-turn history and current user message are assembled into the prompt the model actually receives.
A custom Ollama model is essentially a configuration pointing to a base model; the weights remain those of the base model, and only the system prompt and parameters change.
This update adds a CAPABILITY declaration field to the Modelfile and an additive capabilities field to the create request.
Modelfile supports directives such as FROM, SYSTEM, PARAMETER, and TEMPLATE, and the FROM directive can specify either a local path or a model name on Ollama Hub.
When renaming a Modelfile, the .txt extension must be removed; otherwise Ollama cannot correctly recognize the configuration file.
When Ollama processes a FROM directive pointing to a local file, it does not copy the file but only creates a reference in the metadata database, making the operation fast and consuming no additional disk space.
Ollama supports creating reproducible model configurations using a Modelfile and is open-source under the MIT license.
A Modelfile is Ollama's model configuration description file; its syntax is similar to a Dockerfile, and its core fields include FROM, PARAMETER, and SYSTEM.
The command ollama create qwen14B -f Modelfile can be used to create a model based on a Modelfile configuration file.
During migration, it is necessary to check the Modelfile template configuration of the corresponding Ollama model to ensure that structured elements in the prompt are correctly injected.
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All Facts (17)
Based on the Modelfile mechanism, users can perform instruction fine-tuning or parameter adjustment on top of existing models to create customized models.
60%UnverifiedOllama's Model File mechanism is similar to a Dockerfile, allowing customization of private models through FROM, SYSTEM, PARAMETER, and TEMPLATE instructions.
60%UnverifiedOllama引入了Modelfile概念，借鉴Docker的容器化设计哲学
60%UnverifiedEach model in Ollama comes with a Modelfile, in which the TEMPLATE directive defines how the system prompt, multi-turn history and current user message are assembled into the prompt the model actually receives.
50%UnverifiedA custom Ollama model is essentially a configuration pointing to a base model; the weights remain those of the base model, and only the system prompt and parameters change.
50%UnverifiedThis update adds a CAPABILITY declaration field to the Modelfile and an additive capabilities field to the create request.
50%UnverifiedWhen renaming a Modelfile, the .txt extension must be removed; otherwise Ollama cannot correctly recognize the configuration file.
50%UnverifiedModelfile supports directives such as FROM, SYSTEM, PARAMETER, and TEMPLATE, and the FROM directive can specify either a local path or a model name on Ollama Hub.
50%UnverifiedWhen Ollama processes a FROM directive pointing to a local file, it does not copy the file but only creates a reference in the metadata database, making the operation fast and consuming no additional disk space.
50%UnverifiedOllama supports creating reproducible model configurations using a Modelfile and is open-source under the MIT license.
50%UnverifiedA Modelfile is Ollama's model configuration description file; its syntax is similar to a Dockerfile, and its core fields include FROM, PARAMETER, and SYSTEM.
50%UnverifiedThe command ollama create qwen14B -f Modelfile can be used to create a model based on a Modelfile configuration file.
50%UnverifiedDuring migration, it is necessary to check the Modelfile template configuration of the corresponding Ollama model to ensure that structured elements in the prompt are correctly injected.
50%UnverifiedAfter saving a Modelfile, Remuda automatically rebuilds and reloads the model so that the next message immediately uses the new configuration.
50%UnverifiedAfter modifying a Modelfile, the command ollama create <model_name> -f Modelfile must be executed for the changes to take effect.
50%UnverifiedOllama supports Modelfile customization, allowing users to create custom personas or system prompts based on open-source models.
50%UnverifiedOllama introduced a Modelfile concept similar to a Dockerfile, allowing users to customize configurations such as system prompts, temperature parameters, and context window size.
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