Is Claude Sonnet 5 good at Structured Output?
Claude Sonnet 5 ranks #64 of 110 for Structured Output — strong. The top pick for this task is GPT-5.4 Mini (max reasoning).
Best result with high reasoning effort.
#64 / 110
Rank for this task
89.0
Score
$0.0190
Cost / run
Claude Sonnet 5 on each Structured Output sub-task
| Schema Adherence | 94.3/100 | #67 |
| Noisy Structured Output Test | 94.2/100 | #29 |
| Transformation | 93.7/100 | #58 |
| Missing & Ambiguous Data | 90.0/100 | #77 |
| Extraction | 75.0/100 | #98 |
Frequently asked
Is Claude Sonnet 5 good at Structured Output?
Claude Sonnet 5 ranks #64 of 110 models we tested for Structured Output, scoring strong.
What is Claude Sonnet 5's strongest Structured Output skill?
Its best sub-task here is Schema Adherence.
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Prompt × model results
12 test cases · 3 evalsClaude Opus
GPT-5
Gemini
v1
7.1
6.8
7.4
v2
8.3
7.9
8.0
v3
9.2
★
8.6
8.4
Best combo: v3 × Claude Opus
9.2 quality · $0.004/run · 1.8s