Blog
Guide
The 25 ways your LLM app is failing (and why you can't see most of them)
A catalog of 25 LLM failure modes in production: loud failures you can catch, silent failures that hide in plain sight, and slow failures that only reveal themselves in hindsight.
Frank Chen · 2 days ago
Guide
The LiteLLM breach changed how we think about AI gateways. Here are 6 options compared.
Compare 6 AI gateways - Respan, LiteLLM, Portkey, OpenRouter, Vercel AI Gateway, and Cloudflare AI Gateway — on security, observability, evals, and more after the March 2026 LiteLLM breach.
Hendrix Liu · March 26, 2026
Company
Announcing our $5M seed round led by Gradient Ventures
Respan announces a $5M seed round led by Gradient Ventures with participation from Y Combinator. We're building the first proactive AI observability platform that closes the loop from evals to production.
Respan · March 18, 2026
Article
How AI agents actually work: a mental model for builders
Learn the mental model behind AI agents, from graph theory to finite state machines to LLM-driven transitions. A practical framework for designing, debugging, and communicating agent architecture.
Frank Chen · March 9, 2026