For a long time the trick to force a model into JSON was to prefill the assistant turn with an...
Structured Outputs vs Tool Use vs Prefills: Getting JSON Out of Claude in 2026
For a long time the trick to force a model into JSON was to prefill the assistant turn with an...
We had a healthcare claims platform stuck at 45% recall on medical coding. Not 45% on a benchmark....
For a long time the trick to force a model into JSON was to prefill the assistant turn with an...
This article is co-authored with my AI agent. I handle real experience, judgment, and final sign-off;...