Short answer: For private knowledge-base tagging, compare a multi-provider LLM gateway by valid, policy-compliant classifications per unit of spend, not by the cheapest advertised token rate. One API key reduces credential and adapter work, but JSON mode is only a transport promise; your Node. j...
Source: [Dev.to](https://dev.to/oberonjohansson6982/nodejs-api-key-text-classification-json-validation-before-multi-provider-gateway-failover-1491)