Visual trace replay for AI apps to fix bugs in one click
Glassbrain captures every step of your AI app as an interactive visual trace tree. Click any node, swap the input, replay instantly without redeploying. Snapshot mode stores deterministic replays. Live mode hits your actual stack. Auto-generated fix suggestions reference exact trace data with one-click copy. Diff view shows exactly what changed. Shareable replay links let your team debug together. Works with OpenAI and Anthropic. Two lines of code to integrate. Free tier: 1K traces/month.
I built Glassbrain because debugging AI apps with text logs is brutal. You're staring at walls of JSON trying to figure out which step broke and why.
Glassbrain gives you a visual trace tree of your entire AI pipeline. Click any node, change the input, and replay it right there without redeploying. If something's wrong, it auto-suggests fixes referencing the exact trace data, and you can copy the fix with location comments baked in.
No direct competitor does visual replay. LangSmith, Langfuse, Helicone all stop at text-based tracing.
Free tier is 1K traces/month. Would love your feedback.
