GGUF
English
fine-tuned
qwen2.5
conversational

wiki-qwen

A fine-tune of Qwen2.5-0.5B-Instruct trained on question/answer pairs generated from Wikipedia data.

What this is

A small experiment in teaching a 0.5B chat model facts from a narrow set of Wikipedia articles, by training it on question/answer pairs made from that text (e.g. "What is Xcode?", "When was X released?").

Limitations (read before using)

This model is not reliable. It is a 0.5B model fine-tuned briefly on a small dataset, and it:

  • Still makes up facts (hallucinates) on topics inside and outside the training data.
  • Gets details wrong even on articles it was trained on.
  • Should not be used for anything where accuracy matters.

A retrieval-based approach (giving a model the real article text at answer time, instead of training facts into its weights) worked much better in testing than this fine-tune did. This model is shared as-is, mainly as a record of the experiment, not as something to rely on.

Training

  • Base model: Qwen2.5-0.5B-Instruct
  • Data: Wikipedia
  • Full fine-tune (not LoRA)

Licence

Trained on Wikipedia text, licensed under CC BY-SA 4.0 — this model is released under the same licence. Credit Wikipedia and its contributors.

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qwen2
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