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LoRA vs QLoRA vs MCP: Picking the Right Setup for Task-Specific AI Apps

Last Updated: September 6th, 2026

LoRA and QLoRA are the same core method, with one difference that matters: memory. QLoRA quantizes the base model to 4-bit, cutting peak GPU memory by about 75% versus LoRA, per Google's Gemini Enterprise Agent docs. MCP (Model Context Protocol) is different. It doesn't fine-tune anything. It…