# Solar Decide

> Upstage Solar Decide is a decision model served as a System One endpoint on Solar Mini 4: send application state and typed questions (noul / choice / score) and get structured answers back — not generated chat text. It has a 524,288-token context window. Call POST /api/v1/decisions (POST /api/v1/systemone is the same handler).

**ID**: `upstage/solar-decide`  
**Creator**: upstage  
**Category**: text  
**Context**: 524K tokens  
**Input**: $0.05/M  
**Output**: $0  
**Released**: 2026-09-28  
**Web page**: https://anyrouter.dev/model/upstage/solar-decide

**Input modalities**: text  
**Output modalities**: text  

**Capabilities**: systemone

**Supported parameters**: state, model, questions

## Usage

**Endpoint**: `POST https://anyrouter.dev/api/v1/decisions`

```bash
curl https://anyrouter.dev/api/v1/decisions \
  -H "Authorization: Bearer $ANYROUTER_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
  "state": "Help! My payouts have been failing for 3 days.",
  "model": "upstage/solar-decide",
  "questions": {
    "is_urgent": {
      "type": "noul",
      "instructions": "Does this convey urgency?"
    }
  }
}'
```

Decisions is not chat: send `state` and typed `questions` (noul / choice / score). Requires a BYOK key for TypeSafe, LLM Gateway, Vercel AI Gateway, AIHubMix, AutoJev, or Fastino.

## Providers

| Provider | Input | Output |
| --- | --- | --- |
| openrouter-byok | $0 | $0 |

## Source

- Upstream docs: https://openrouter.ai/upstage/solar-decide