NadirClaw

Nadir is an LLM router that picks the cheapest model and reasoning effort that still meets a quality bar. A small decision model reads each prompt against the customer's model menu and chooses the lowest cost model it expects to handle it. When the decision model is uncertain or unavailable, the request goes to the strongest model on the menu. NadirClaw is the self hosted core of the product. It runs two ways. The decision API returns a model, reasoning effort, cache, context and policy recommendation without calling any provider, so it can run in shadow mode beside an existing gateway. The OpenAI compatible managed proxy executes the route, needing only a changed base URL and the model set to auto, with an optional verifier that can escalate to a stronger model. Bring your own keys is supported on every tier. For coding agents, a terminal launcher called Nadir Auto selects the model for each Claude Code or Codex turn, and delegation integrations exist for Claude Code, Codex and Cursor. Hosted routing has no base fee. It takes 25 percent of the first $2,000 of measured savings in a month and 10 percent of savings above that, and bills nothing if no savings are delivered. The Lens analytics product is free in early access, with a Starter tier at $0 for up to 5 members and a Team tier at $4.99 per org member per month. NadirClaw is licensed under PolyForm Noncommercial and the vendor describes it as source available, not open source.