Respan

4.5

Respan is a unified LLM engineering platform that helps teams build, ship, and operate reliable AI applications at scale. Instead of stitching together separate tools for logging, evaluation, prompt iteration, routing, and model access, Respan centralizes the full lifecycle of large language model development. With Respan, developers get deep observability into prompts, responses, errors, and latency across all their LLM providers. Built‑in evaluations, guardrails, and regression testing make it easy to compare models, validate changes, and prevent quality drift in production. A powerful prompt and workflow editor lets you experiment quickly while keeping a clean version history of what goes to production. Respan also acts as an AI gateway: connect once and securely route traffic to multiple LLMs, switch providers without code changes, and enforce quotas, authentication, and compliance policies in one place. Whether you are building chatbots, internal copilots, or complex agents, Respan gives you the infrastructure to move from ad‑hoc prototypes to robust, maintainable systems. Designed for modern engineering teams, Respan offers a free tier so you can start instrumenting, evaluating, and optimizing your AI stack in minutes—without rebuilding your existing architecture.