# Solar Pro 4 API pricing

The official API price of Solar Pro 4 is $0.3 per 1M input tokens and $1.2 per 1M output tokens (as of 2026-11-12). Context window: 524K tokens, up to 131K output tokens per request. 6 providers sell it. The lowest is AI/ML API: $0.09522 input, $0.38088 output.

- Type: Text
- Context: 524K
- Max output: 131K
- Released: 2026-08-06
- Open weights: No

## Price by provider (USD per 1M tokens)

| Provider | Model id | Input | Output | Cached | Notes |
| --- | --- | --- | --- | --- | --- |
| [Upstage](https://developers.upstage.ai/docs/apis/chat) | solar-pro4 | $0.3 | $1.2 | $0.06 | Official |
| [AI/ML API](https://docs.aimlapi.com) | upstage/solar-pro4 | $0.09522 | $0.38088 | $0.019044 | Lowest |
| [LLMTR](https://llmtr.com/docs) | upstage/solar-pro4 | $0.15 | $0.6 | $0.03 |  |
| [NanoGPT](https://docs.nano-gpt.com) | upstage/solar-pro4 | $0.15 | $0.6 | $0.03 |  |
| [NanoGPT](https://docs.nano-gpt.com) | upstage/solar-pro4:thinking | $0.15 | $0.6 | $0.03 |  |
| [OpenRouter](https://openrouter.ai/models) | upstage/solar-pro4 | $0.15 | $0.6 | $0.03 |  |
| [Kilo Gateway](https://kilo.ai) | upstage/solar-pro4 | $0.3 | $1.2 | $0.06 |  |

Providers are those listed by models.dev. This site has not vetted them one by one; each provider's own page has the binding price.

Prices and specs come from models.dev (MIT licence), updated 2026-11-12. Each provider's name links to its official docs. A provider priced at 0 usually includes the model in a subscription; it is not necessarily a free API.

https://apibook.ai/models/upstage/solar-pro4/