Uploaded April 2026 | Updated September 2026, 2 hours ago
If your model is hallucinating about your company docs, fine-tuning is usually not the fix.
That’s the trap.
A lot of teams see wrong answers about internal files and assume they need to retrain the model. But fine-tuning changes behavior, not factual recall of constantly changing company knowledge. It can help with tone, structure, or broad domain patterns. It is not the best tool for making a model reliably remember your latest return policy, pricing sheet, or product catalog.
For that, you usually want retrieval.
In other words:
fine-tuning teaches patterns,
retrieval supplies facts.
So if the issue is accuracy on specific documents, give the model better access to the right context instead of trying to bake those facts into its parameters. It is cheaper, easier to update, and much more controllable.
Mixing those two up is one of the fastest ways to waste time and budget in AI. Have you seen teams make this mistake already? I’m Louis-François, PhD dropout, now CTO & co-founder at Towards AI. Follow me for tomorrow’s no-BS AI roundup 🚀
#AI #LLM #FineTuning #short
If your model is hallucinating about your company docs, fine-tuning is usually not the fix.
That’s the trap.
A lot of teams see wrong answers about internal files and assume they need to retrain the model. But fine-tuning changes behavior, not factual recall of constantly changing company knowledge. It can help with tone, structure, or broad domain patterns. It is not the best tool for making a model reliably remember your latest return policy, pricing sheet, or product catalog.
For that, you usually want retrieval.
In other words:
fine-tuning teaches patterns,
retrieval supplies facts.
So if the issue is accuracy on specific documents, give the model better access to the right context instead of trying to bake those facts into its parameters. It is cheaper, easier to update, and much more controllable.
Mixing those two up is one of the fastest ways to waste time and budget in AI. Have you seen teams make this mistake already? I’m Louis-François, PhD dropout, now CTO & co-founder at Towards AI. Follow me for tomorrow’s no-BS AI roundup 🚀
#AI #LLM #FineTuning #short
