SuperCosmos 1.0
SuperCosmos 1.0
The previous version of SuperCosmos: 550B parameters (55B active), a 1M-token window and three tiers, Flash, Max and Heavy. SuperCosmos 1.1 replaced it on Nov 2, 2026.
Previous version
SuperCosmos 1.0
The model family behind every Clatter Labs product, tuned for coding-agent work.
- FlashFast
- MaxStrong
- HeavyDeliberate
SuperCosmos 1.0 is the previous version of SuperCosmos. Since Nov 2, 2026 the model ids supercosmos-flash, supercosmos-max and supercosmos-heavy run SuperCosmos 1.1, at the same prices. See SuperCosmos 1.1.
SuperCosmos 1.0 was the first version of SuperCosmos by Clatter Labs, the model family behind every Clatter Labs product. It is a 550B-parameter mixture-of-experts model (55B active per token) with a 1M-token context window (1,048,576 tokens), and it comes in three tiers that share those weights and that window, each tuned with its own instructions for coding-agent work: look before changing, use tools carefully, plan bigger jobs, verify before reporting, answer briefly.
per 1M tokens
Quick edits, answers and everyday agent steps. No extended thinking.
per 1M tokens
Planning, debugging and multi-file changes. Thinks before acting.
per 1M tokens
Hard bugs, long builds, deep reasoning. Thinks longest.
Compare tiers
| Flash | Max | Heavy | |
|---|---|---|---|
| Model id | supercosmos-flash | supercosmos-max | supercosmos-heavy |
| Speed | Fastest | Balanced | Slowest |
| Extended thinking | Off | On | On, longest |
| Parameters | 550B (55B active) | 550B (55B active) | 550B (55B active) |
| Context window | 1M tokens | 1M tokens | 1M tokens |
| Input / 1M tokens | $1.60 | $1.80 | $2.00 |
| Output / 1M tokens | $3.40 | $3.80 | $4.40 |
| Long-context input (above 262K tokens) | 1.5× | 1.5× | 1.5× |
Output prices include reasoning tokens.
Where you choose a tier
| Product | How |
|---|---|
| Agent API | tier on POST /v1/runs: auto, flash, max, heavy |
| Model API | The model id: supercosmos-flash, supercosmos-max or supercosmos-heavy (Model API) |
| Line CLI | /model → SuperCosmos, then /effort flash, max or heavy (or auto, which routes between Flash and Max per step) |
With auto, each call is routed and billed at the tier it actually ran on. Agent API runs on auto bill as Flash.
In Line CLI the tiers are called efforts of the SuperCosmos model (Flash, Max, Heavy); prices are the same.
Line Code
Alongside SuperCosmos 1.0, Line CLI and the Model API offered Line Code, Clatter Labs' coding model (retired Nov 1, 2026): efforts Fast ($1.15 / $1.60), Ultra ($1.25 / $1.90) and Ultra Fast ($1.40 / $2.20) per 1M input / output tokens. Current prices are on Models.
SuperCosmos reads text. It doesn't take image input.