> ## Documentation Index
> Fetch the complete documentation index at: https://docs.shamwari.ai/llms.txt
> Use this file to discover all available pages before exploring further.

# Routing and models

> Shamwari Cloud routes; it is not a model. Most questions go to a fast, inexpensive model, and only the ones that need more get more.

## How the tier is chosen

A plain heuristic over length, turn count and task keywords in all three
languages, held in a configuration file rather than compiled in — so it can
be retuned without a code change.

Deliberately not an AI classifier. Paying for a model call to decide which
model to call would double the latency and the cost of every single request,
to answer a question a keyword list answers well enough. The heuristic will
be revised when usage data shows where it is wrong, not before.

| Tier     | Model family   | Provenance    | Trains Mind |
| -------- | -------------- | ------------- | ----------- |
| Economy  | Qwen           | `open_weight` | ✅ Eligible  |
| Standard | Kimi           | `open_weight` | ✅ Eligible  |
| Premium  | Not configured | `restricted`  | ❌ Never     |

Economy handles the bulk, which is where the margin comes from — the gateway
passes provider pricing through at cost.

<Note>
  **Say open weights, not open source.** The models Shamwari routes to publish their weights. That is not the same as
  being open source, and the difference is not pedantry: Kimi ships under a
  bespoke licence with revenue and user thresholds attached, not under MIT or
  Apache-2.0.

  Shamwari's own platform code is Apache-2.0. The models it calls are governed
  by their own terms, and the corpus it reads is governed by a licence recorded
  per source.
</Note>

## Provenance travels with the answer, not with the tier

A fallback chain can serve a response from a different provider than the one
originally chosen. That makes tier-level provenance a lie waiting to happen:
the stamp says what we meant to call, and the answer came from somewhere
else.

Every model a request can reach is therefore open-weight, so that whichever
one answers, the stamp stays true. Adding a restricted provider anywhere in a
fallback chain would require reading the provider back from the response and
stamping from that instead — which is the work, not a detail.

## Where sovereignty applies

Shamwari Mind, which runs on the device, and Shamwari Ground, which is our own
corpus, are sovereign. Shamwari Cloud calls models hosted elsewhere and is
not, and no amount of phrasing makes it so.


## Related topics

- [An AI companion that refuses to send your data away](/index.md)
- [Architecture](/architecture.md)
- [What concurrent traffic looks like](/traffic.md)
- [How we describe it](/language.md)