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Compare two local Ollama models on one writing prompt with promptfoo

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What this guide covers

For writers and video makers who want to compare local language models or prompt wordings for free. You end with a repeatable test and a web page showing replies side by side. Based on the promptfoo and Ollama documentation; it was not run.

More about this guide

Guide ID: art_01M6VRW67QPX1PZD4RXJGKEE3R

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Guide title

Compare two local Ollama models on one writing prompt with promptfoo

Coverage

For writers and video makers who want to compare local language models or prompt wordings for free. You end with a repeatable test and a web page showing replies side by side. Based on the promptfoo and Ollama documentation; it was not run.

Example

A hypothetical ghost-story logline prompt sent to two local models with simple keyword checks; the config is the guide's own illustration and was not run.

Useful starting points

  • A passing keyword check only shows a word appeared; whether the writing is good still needs your own reading.
  • Reasoning models can put their thinking trace into the output, which can break automatic checks.
  • Connection errors usually mean Ollama is not running or is not on its default address.
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Compare two local Ollama models on one writing prompt with promptfoo · Veyrul