CPT vs RAG: Testing Knowledge Internalization on Qwen 3.5 4B

A developer ran controlled experiments on Qwen 3.5 4B using Unsloth, comparing continued pre-training (CPT) to internalize domain knowledge against RAG retrieval on the same base model, measuring accuracy and inference performance to quantify which approach is more cost-effective.

2026-09-12 ~ 2026-09-12 · 4 related posts

• Experiment: continued pretraining vs RAG on Qwen 3.5 4B for accuracy and performance — funJS · 2026-09-12
• Continued pretraining vs RAG on Qwen 3.5 4B: a hands-on accuracy and performance comparison — funJS · 2026-09-12
• Continued pretraining vs RAG: an accuracy and performance comparison on Qwen 3.5 4B — funJS · 2026-09-12

1 near-duplicate retellings: funJS