Topic

structured outputs

Every THE D[AI]LY BRIEF article on structured outputs — enterprise AI analysis, benchmarks, vendor comparisons, and ROI frameworks for technology and business leaders. Updated as new coverage publishes.

Claude Opus 5.5

Claude Opus 5.5 Rejects the Forced Tool Calls Opus 5 Accepted

Claude Opus 5.5 cuts per-token prices 20% and cache reads 60%, but forced tool_choice and disabled thinking now return HTTP 400, the default effort drops to medium, and the 40% saving compares different effort levels.

September 22, 2026 · 11 min read