Not at the moment, although it is a highly requested feature (specifically fine-tuning). There are a few tools that you can (or will soon be able to) use to fine tune a model and then import the resulting adapter layers into Ollama: MLX [1] on macOS, Unsloth [2] on Windows and Linux

[1] https://github.com/ml-explore/mlx

[2] https://github.com/unslothai/unsloth

My best suggestion is use axoltol to tune, convert to HF format with llama.cpp, and serve with Ollama.