The model is the one on your subscription, not ours.

Who pays for the model?

You, directly to the provider. Tactyn opens the agent's official CLI and it uses your account. The app does not see your login, does not store access tokens and does not route your usage through a server of ours. What you pay Tactyn is only the app.

So the list of available models is whatever your CLI and your subscription offer. It changes when the provider changes, and Tactyn does not promise a specific model.

What Tactyn does not do

• Does not sell credits or usage packs.
• Does not put a model of ours between you and the agent.
• Does not switch models on its own in the middle of a task.

In the maestro, each task type has an agent, a model and an effort.

In Preferences, on the maestro tab, you define task types. Each type has a name, a description the maestro reads, the agent, the model and the reasoning effort. When it builds the plan, the maestro tags each task with a type, and Tactyn applies that type's agent, model and effort.

You can define types for all projects and others for a single project. In the plan editor, the “Type” selector changes all three at once, and you can adjust each one on a single task. Changing the types later does not alter a mission that has already started.

Effort appears disabled for an agent that does not accept it. Today that is OpenCode, which receives the model but not the effort.

The five types above come ready-made and use models we checked in the CLIs. You can change all of them: if your subscription does not include one, swap it for another. A task with no type keeps using just the chosen agent, with the CLI's default model and effort.

Model names are the CLI's own, and each agent has its own catalog. If the one you want is not on the list, the field accepts another name.

Cost comes from a price table you can edit.

In the usage report, Tactyn adds up tokens and works out cost per project, mission and task. It uses a per-model price table that you can edit. Tactyn matches the price by the exact model name and, if none is found, by the longest prefix that fits.

If a model has no price in the table, its cost does not become zero: it shows no value, so you do not read a false number. Each number also carries its origin: official, estimated or exact.

Worth remembering

• The starting table was checked against the providers' official pages on 25 Sep 2026.
• Provider prices change. Edit the table when they do.
• On a subscription with a limit, the money figure is a reference for what the usage would be worth on the API, not what you pay.