# Models and routing

Two ways to get an answer: let Nymbot choose the model, or choose it yourself.

## Standard: auto-routed

On the standard tier your message is classified first — is this a question, a translation, something creative, something that needs current information — and routed to a model suited to it. A quick factual answer does not pay for a reasoning model, and a hard one is not answered by a fast one.

Questions that depend on current information trigger a web search before the answer is written, and the sources are listed underneath it.

This is the cheap, sensible default. Most conversations never need anything else.

## Pro: pin a model

`?model <name>`, or the model chip in the toolbar, pins every reply in the conversation to one specific frontier model. `?model off` returns you to standard routing.

Pin one when you want a particular model's judgement, when you are working in a [repository](https://nymbot.ai/docs/git/) — which needs Pro — or when you want the same model's voice across a long piece of work.

Currently available: Claude Fable 5, Claude Opus 5, Claude Sonnet 5, Claude Haiku 4.5, GPT-5.6 Sol, GPT-5.4 mini, Gemini 3.1 Pro, Gemini 3.6 Flash, Grok 4.6, Kimi K3, Qwen 3.5 and MiniMax M3.

## The model catalog

The picker is generated from a live catalog rather than hard-coded, so the list you see is exactly what the server will accept and charge for. Each entry carries its base price, its maximum, its context window, and whether it can see images, reason visibly or call tools.

Models badged as hosted are run on the same infrastructure as the rest of the service and do not depend on an upstream provider being reachable. The others are proxied.

The catalog moves as models are released and retired. A model you pinned that has since gone away falls back to standard routing rather than failing, and tells you.

## Reasoning and vision

When a model shows its chain of thought — the standard tier's reasoning route, or a Pro model that exposes it — the reply carries a collapsed **💭 Reasoning** section above the answer. Tap to read it; it is not charged separately from the reply it belongs to.

Every Claude, GPT, Gemini, Grok and Kimi Pro model can see images, as can the creative and translation routes on standard. Put a picture's link in your message and ask about it — see [sending pictures](https://nymbot.ai/docs/chats/#attachments).