| Model | ID | Context | When |
|---|
| Opus 4.8 | claude-opus-4-8 | large | The most complex tasks, agents, long code |
| Sonnet 4.6 | claude-sonnet-4-6 | large | A price/quality balance — the default for code |
| Haiku 4.5 | claude-haiku-4-5 | large | Fast and cheap requests, classification |
Rates (₽ per 1M tokens)
| Model | Input | Output |
|---|
claude-opus-4-8 | 37 | 185 |
claude-sonnet-4-6 | 37 | 185 |
claude-haiku-4-5 | 37 | 185 |
Listing models via the API
curl https://api.ethereal.llc/v1/models \
-H "Authorization: Bearer eth-..."
{
"object": "list",
"data": [
{ "id": "claude-opus-4-8", "object": "model" },
{ "id": "claude-sonnet-4-6", "object": "model" },
{ "id": "claude-haiku-4-5", "object": "model" }
]
}
Specify a concrete id in the model field. For most coding tasks, start with
claude-sonnet-4-6, move up to Opus for hard ones, and down to Haiku for
simple ones — it’s cheaper that way.
