API router that picks the cheapest model that fits each query

Show HN: API router that picks the cheapest model that fits each query

API router that picks the cheapest model that fits each query is a company in show hn launch.

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I got frustrated paying $60/M tokens for reasoning queries when a $0.80/M model gives comparable results for most of them. So I built Komilion — a model router that classifies each API request and routes it to a cheaper model that fits.- Drop-in replacement for the OpenAI SDK (change one line: base_url) - Each query gets classified (regex fast path + lightweight LLM classifier) and matched against ~390 models - Three tiers (Frugal/Balanced/Premium) to control the quality-cost tradeoff - Automatic failover if a provider goes down - Cost metadata in every responseThe routing logic is benchmark-driven (LMArena, Artificial Analysis), not ML-based — simpler to debug and reason about. The regex fa

API router that picks the cheapest model that fits each query is positioned in show hn launch, a segment that rewards a clear, focused offering.

Its current recorded stage is Show HN launch.

Website: www.komilion.com