LLM engineering platform that routes, observes, and evaluates every AI call through a unified gateway supporting 1,000+ models.
Respan is an LLM engineering platform providing a unified API gateway that gives access to 1,000+ models with automatic fallbacks, response caching, and spend limits. It captures every LLM call, tool run, retrieval, and agent turn as spans in full traces with latency, cost, and I/O data for complete observability. The integrated evaluator scores outputs using LLM judges, code checks, or human reviewers sampled from production data and enables A/B comparison of model and prompt versions. Processes 80 trillion+ tokens and meets enterprise and healthcare security requirements. Respan is a product of Respan.
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