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The LLM router screen assigns a model to each of three reasoning levels. The router then picks the right-sized model per request, so a quick lookup doesn’t run on your most expensive model.

The three reasoning levels

Every config assigns a model per level. One is enough.

The screen

With no configs, the page shows No configs yet! and a Setup new config button. Each config appears as a card with its name, provider, the model per level, and a Default badge on the current default. Actions: Make default (on non-default configs) and Delete. Available providers below lists every usable provider with its model count and a Requires API key chip. Clicking one opens the config form with that provider preselected.

Creating a config

1

Name it and pick a provider

The provider choice unlocks the reasoning-level dropdowns — they stay disabled until the platform knows which models to offer.
2

Connect the provider

  • Use saved secret (default) — pick from secrets already in your workspace. See Secrets.
  • Add new secret — name it (e.g. OPENAI_API_KEY) and paste the key. Stored encrypted, used only for that provider.
Either way, the key is never displayed back to you.
3

Assign a model per level

Each dropdown lists only that provider’s models; switching provider repopulates all three.At least one is required — saving all three empty returns “Choose a model for at least one reasoning level.”
4

Save it

Tick Make this the default routing config if it should be the default. It’s ticked automatically for your first config.
Changing the default config changes which models subsequent requests use. It doesn’t affect conversations that already ran, and it doesn’t restart any agent.

Model routing vs. agent selection

Two things get called “routing.” This screen controls only the first: Agent selection decides who handles the request; your routing config decides which model that work runs on.
To lock a specific agent to one model regardless — for compliance, say — use a per-agent LLM config: nasiko llm-config --pin. See the routing engine guide.

Routing engine guide

Per-agent configs, pinning, and CLI equivalents.

Routing and flow limits

How the platform picks which agent handles a query.

TokenOps dashboard

What your model choices cost.

Secrets

Where provider keys are stored and rotated.