# Models

> SuperCosmos 1.1: what it is for, its efforts Flash, Max and Heavy, and the price of every effort per 1M tokens.

**SuperCosmos 1.1** is the model behind everything you build with Clatter Labs. It comes in three **efforts** that trade speed and cost for depth, and every effort has its own price.

<Columns cols={1}>
- **SuperCosmos 1.1** (Agent API · Model API · Line CLI · Cosmos Agent): The model family behind every Clatter Labs product, tuned for coding-agent work. Efforts: Flash, Max, Heavy. Size: 550B params (55B active). Context window: 1M tokens. From $1.60 in · $3.40 out.
</Columns>

## Size and context window

| Model | Parameters | Active per token | Context window |
| --- | --- | --- | --- |
| SuperCosmos 1.1 | 550B | 55B | 1M tokens (1,048,576) |

SuperCosmos is a mixture-of-experts model: each token runs through only part of the network (the active parameters), which keeps it fast for its size. Efforts share the model's weights and context window. Line CLI compacts a long conversation automatically at about 80% of the window.

## What an effort is

An effort is how much work the model puts into each step: how long it thinks before acting, how carefully it plans and checks, and how many tokens that takes. Higher efforts reason longer and verify more, so they are slower and cost more per token. Pick the lowest effort that does the job, and move up when a task keeps failing its own checks or needs a plan across many files.

- **Agent API**: set `tier` on `POST /v1/runs` (`auto`, `flash`, `max`, `heavy`).
- **Line CLI**: `/effort` picks the effort (or `line -e <effort>`).
- **Model API**: each effort is its own model id, like `supercosmos-max` ([Model API](/model-api/overview)).

## SuperCosmos

- **Flash** (Fast): $1.60 input / $3.40 output per 1M tokens. Answers without extended thinking. Quick edits, answers and the everyday steps of an agent loop.
- **Max** (Strong): $1.80 input / $3.80 output per 1M tokens. Thinks before acting. Planning, debugging and multi-file changes.
- **Heavy** (Deliberate): $2.00 input / $4.40 output per 1M tokens. Thinks longest and writes the longest answers. Hard bugs, long builds, deep reasoning.

Model ids are `supercosmos-flash`, `supercosmos-max` and `supercosmos-heavy`. With `auto`, each call is routed and billed at the effort it actually ran on; Agent API runs on `auto` bill as Flash. See the [SuperCosmos overview](/models/overview).

## All prices

| Model | Effort | Input / 1M tokens | Output / 1M tokens | Where |
| --- | --- | --- | --- | --- |
| SuperCosmos 1.1 | Flash | $1.60 | $3.40 | Agent API, Model API, Line CLI, Cosmos Agent |
| SuperCosmos 1.1 | Max | $1.80 | $3.80 | Agent API, Model API, Line CLI, Cosmos Agent |
| SuperCosmos 1.1 | Heavy | $2.00 | $4.40 | Agent API, Model API, Line CLI, Cosmos Agent |

**Long-context input above 262K tokens: 1.5×**: a request whose prompt is over 262K tokens bills its whole input at 1.5× the rate above.

Output includes reasoning tokens. In Line CLI, usage counts toward your [plan](/billing/credits)'s usage limits at the price of the effort each call ran on. Model API and Agent API calls are paid from your credits; Agent API runs also pay for computer time and actions (see [Rates](/billing/rates)).

<Note>
SuperCosmos reads text. It doesn't take image input.
</Note>

## Previous models

- **[SuperCosmos 1.0](/models/supercosmos-1-0)**: the previous SuperCosmos version. Its model ids now run SuperCosmos 1.1, at the same prices.
- **[Line Code](/models/line-code)**: retired on Nov 1, 2026. Its ids answer `410 model_retired`. See [Line Code retirement](/models/line-code-retired).