Respan

★ 4/5 · AI

LLM observability and gateway platform (formerly Keywords AI) for routing, monitoring, and evaluating LLM applications across 500+ models.

Pros

Rebranded from Keywords AI (Y Combinator company)
supports 500+ models
detailed trace logs with span-level latency
evaluation workflows with human review and LLM judges
SOC 2, HIPAA, GDPR, ISO 27001 certified

Cons

Pricing not disclosed on homepage
limited public feature documentation
enterprise-focused messaging

Cost

Contact for pricing (unverified)

Verdict

Best for enterprises managing multi-model LLM deployments needing unified observability, routing, and evaluation.