Auto LLM Benchmark — comparing models on your tasks

The same tasks for different models — quality and speed in one table.

AI evaluation & model selection

Repository on GitHub (GitHub)

About the project

An automated bench for evaluating language models on real working scenarios. It helps choose a local LLM not by the impression of a few answers but by test results with common criteria.

You add tasks and answer requirements in Google Sheets. The system sends requests to the model under test, saves the answers and measures performance. Then GPT-4.1 acts as an AI evaluator: it checks the result against the given criteria, gives a score and explains the grade.

By repeating the set of tests for different models, the team gets a basis for comparison: who follows instructions better, produces correct JSON or solves coding tasks — and how fast. Answers, metrics and grades stay in a shared table for further analysis.

How it works

  1. You set tests and criteria
  2. The system runs them on a local model
  3. Collects answers and metrics
  4. GPT-4.1 evaluates quality
  5. You get results with scores and explanations

Features

  • Tests for your own processes. From customer support and text preparation to QA, programming and logic tasks.

  • Evaluation by common criteria. Following instructions, completeness of the answer, data structure and signs of invented facts.

  • A clear check result. A five-point score with an explanation.

  • Performance measurement. Response time, generation speed and token count.

  • Run history. Model, task, original answer, metrics and grade are saved together.

  • Repeat checks. One set of scenarios can be reused when the model or settings change, to track changes in quality.

Where it can be used

  • Corporate teams — choosing an LLM for internal assistants.
  • AI agent developers — checking instruction following and structured answers.
  • QA teams — regression testing of model behavior.
  • Organizations adopting local LLMs — comparing quality and speed on their own hardware.

Technologies

  • n8n
  • LM Studio
  • local LLMs
  • OpenAI GPT-4.1
  • Google Sheets

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Start with one process.

Describe what is currently done manually, what data is involved and what result you would like to achieve. You do not need a technical specification or a chosen model to begin.

Please do not share trade secrets, source code, or sensitive personal data before an NDA (non-disclosure agreement) is signed.