Open Weights vs Closed Models: Practical Trade-offs

By C.W. Jameson · Published 5 February 2026 · Last reviewed 5 March 2026

Open weights give control. Closed APIs give capability. The right answer depends on what you are optimising for.

When to run Llama, Mistral, or Qwen locally vs using Claude or GPT-4 APIs. Cost, latency, and privacy analysis.