Routerbase

An objective explorer for LLM models. Browse, filter, and compare 339 models across pricing, context windows, capabilities, and benchmarks — all sourced from OpenRouter's API data.

I built it because choosing the right model for a task was annoyingly manual. Every provider's documentation presents their models in the best light. Routerbase is neutral — same format, same metrics, side by side. Filter by modality, sort by price per million tokens, compare context windows. The data updates automatically.

The interesting engineering problem was the data pipeline. OpenRouter provides model metadata via API, but the shape varies per model and changes without notice. The pipeline normalises everything into a consistent schema, detects new models, and regenerates the static site. The whole thing is statically generated for speed and SEO — every model has its own page, every combination of filters produces a meaningful URL.