LLM Output Comparator
Compare 2–4 LLM outputs side by side with diff, metrics, and Markdown / JSON rendering
#1
Tokyo is the capital of Japan. It is the most populous metropolitan area in the world.
#2
Tokyo is the capital city of Japan. Greater Tokyo is the world’s most populous metropolitan area.
| Metric | GPT-4.1 | Claude 4.7 |
|---|---|---|
| Tokens (GPT-4.1) | — | — |
| Chars | 86 | 97 |
| Words | 16 | 17 |
| Sentences | 2 | 2 |
| Code blocks | 0 | 0 |
| Bullet points | 0 | 0 |
| Jaccard similarity (vs col 1) | 1.00 | 0.69 |
| Contains refusal | No | No |
| Parses as JSON | No | No |
Metrics are surface-level (token counts, word overlap). They are not a quality ranking — judge semantics yourself.
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