# Upstage: Solar Pro 3 — Use via Hanzo AI API

> Solar Pro 3 is Upstage&#x27;s powerful Mixture-of-Experts (MoE) language model. With 102B total parameters and 12B active parameters per forward ... Access via Hanzo&#x27;s OpenAI-compatible API. Context: 131K. Get started free.

[Models](https://hanzo.ai/models)/[Upstage](https://hanzo.ai/models/upstage)/solar-pro-3

# Upstage: Solar Pro 3

[Upstage](https://hanzo.ai/models/upstage)

Solar Pro 3 is Upstage&#x27;s powerful Mixture-of-Experts (MoE) language model. With 102B total parameters and 12B active parameters per forward pass, it delivers exceptional performance while maintaining computational efficiency. Optimized...

text

[Get API Key](https://hanzo.ai/signup)[View Docs](https://docs.hanzo.ai)[Try in Chat](https://hanzo.ai/chat)

## Specifications

Context Window

131K

Modalities

text

Input

$0.180 / M tokens

Output

$0.720 / M tokens

Status

available

Category

third-party

Model ID

upstage/solar-pro-3

## Quick Start

TypeScript

```
import OpenAI from &#x27;openai&#x27; const client = new OpenAI({ apiKey: process.env.HANZO_API_KEY, baseURL: &#x27;https://api.hanzo.ai/v1&#x27; }) const response = await client.chat.completions.create({ model: &#x27;upstage/solar-pro-3&#x27;, messages: [{ role: &#x27;user&#x27;, content: &#x27;Hello!&#x27; }] }) console.log(response.choices[0].message.content)
```

Python

```
from openai import OpenAI client = OpenAI( api_key=os.environ["HANZO_API_KEY"], base_url="https://api.hanzo.ai/v1" ) response = client.chat.completions.create( model="upstage/solar-pro-3", messages=[{"role": "user", "content": "Hello!"}] ) print(response.choices[0].message.content)
```

cURL

```
curl https://api.hanzo.ai/v1/chat/completions \ -H "Content-Type: application/json" \ -H "Authorization: Bearer $HANZO_API_KEY" \ -d &#x27;{ "model": "upstage/solar-pro-3", "messages": [{"role": "user", "content": "Hello!"}] }&#x27;
```

Go

```
package main import ( "context" "fmt" "os" "github.com/sashabaranov/go-openai" ) func main() { cfg := openai.DefaultConfig(os.Getenv("HANZO_API_KEY")) cfg.BaseURL = "https://api.hanzo.ai/v1" client := openai.NewClientWithConfig(cfg) resp, _ := client.CreateChatCompletion(context.Background(), openai.ChatCompletionRequest{ Model: "upstage/solar-pro-3", Messages: []openai.ChatCompletionMessage{ {Role: openai.ChatMessageRoleUser, Content: "Hello!"}, }, }, ) fmt.Println(resp.Choices[0].Message.Content) }
```

## More from Upstage

[Upstage: Solar Pro 4524KSolar Pro 4 is Upstage&#x27;s cost-efficient large language model, featuring a 524K context window. It is built for long-horizon tasks and agentic workflows, with strong capabilities in office productivity, document-intensive...](https://hanzo.ai/models/upstage/solar-pro4)

[View all Upstage models →](https://hanzo.ai/models/upstage)

## Use Upstage: Solar Pro 3 via Hanzo AI

One API key. Every major model. OpenAI-compatible. Start free.

[Get Free API Key](https://hanzo.ai/signup)[Browse All Models](https://hanzo.ai/models)
