Does the model keep its JSON-schema promise?
Every major LLM advertises a "structured outputs" or "JSON schema" mode. They do not all keep their word. schema-comply probes the top models on OpenRouter every 4 hours with a fixed battery of five schemas and ranks them by how often their response actually parses and validates. No mock data. No seed rows.
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| # | Model | Provider | Mode | Compliance | Probes | Avg latency | Avg cost | Last probe |
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