Respan
LLM tracing, evals, and gateway
The top alternatives to Chamber in the Observability, Prompts & Evals space, compared on features, pricing, and what they're best at.
Updated March 27, 2026
Chamber built Chambie, an AI-powered AIOps agent that autonomously monitors, root-causes, and remediates GPU infrastructure issues across clouds. Part of YC W2026, the company was founded by four ex-Amazon engineers: Charles Ding (CEO, second-time founder with a .5M ARR exit), Andreas Bloomquist (launched AWS CloudWatch Application Signals), Jason Ong (GPU scheduling at Amazon), and Shaocheng Wang (9.5+ years at AWS).
One platform for routing, observability, tracing, and evals across every LLM provider.
Respan lets you trace LLM and agent calls across any model or framework, A/B test prompts on production traffic, and route requests across 500+ models through one gateway.