Hormouz AIHormouzSign in

Upstage: Solar Pro 3: AI model

Solar Pro 3 is Upstage’s Mixture-of-Experts model with 102B total and 12B active parameters, optimized for Korean with English and Japanese support. Reachable from inside Iran through Hormouz.

Context window:
131,072 tokens
Input:
$0.15/1M tokens
Output:
$0.6/1M tokens
Type:
text
  • Tools
  • Streaming
  • Long context

Thinking levels: high · medium · low · minimal · none

Solar Pro 3 is a powerful language model built on a Mixture-of-Experts (MoE) architecture. It carries 102B total parameters but activates only about 12B per forward pass, pairing high quality with good computational efficiency.

The model is optimized for Korean while also supporting English and Japanese. Solar Pro 3 offers step-by-step reasoning, tool calling and structured output, and a context window of up to 128K tokens. Access runs through Hormouz behind an OpenAI-compatible API.

Pricing is usage-based: $0.15 per million input tokens and $0.60 per million output tokens. Hormouz provides stable access to the model from inside Iran.

Solar Pro 3 is Upstage'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...

Quickstart

curl https://api.hormouz.net/v1/chat/completions \
  -H "Authorization: Bearer ng-YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "upstage/solar-pro-3",
    "messages": [{"role": "user", "content": "Hello!"}]
  }'

Specs

VendorUpstage
TypeText
Context window131,072 tokens
Pricing$0.15/M in · $0.60/M out
APIChat Completions
CapabilitiesStreaming · Tools

Benchmarks

7.8
Intelligence Index
Better than 5% of models we compared
16.2
Coding Index
Better than 15% of models we compared
1.4
Agentic Index
Better than 22% of models we compared

Reasoning

GPQA Diamond
Graduate-level scientific reasoning
72.4%
HLE
Humanity's Last Exam
10.3%
IFBench
Instruction-following
71.2%
AA-LCR
Long-context reasoning
32.3%
CritPt
Research-level physics reasoning
0%
AA Omniscience
Broad factual knowledge accuracy
18.5%
Non-Hallucination
Rate of avoiding fabricated answers
11.8%

Coding

SciCode
Python for scientific computing
25.5%
Terminal-Bench Hard
Agentic coding & terminal use
7.6%

Agentic

τ²-Bench
Tool-use agents in dual-control scenarios
86.3%
GDPval
Economically valuable tasks
0%

Source: Artificial Analysis

Code example

cURL
curl https://api.hormouz.net/v1/chat/completions \
  -H "Authorization: Bearer ng-YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "upstage/solar-pro-3",
    "messages": [{"role": "user", "content": "Hello!"}]
  }'
Python
from openai import OpenAI
client = OpenAI(api_key="ng-YOUR_API_KEY", base_url="https://api.hormouz.net/v1")
response = client.chat.completions.create(
    model="upstage/solar-pro-3",
    messages=[{"role": "user", "content": "Hello!"}],
)
print(response.choices[0].message.content)
JavaScript
import OpenAI from "openai";
const client = new OpenAI({ apiKey: "ng-YOUR_API_KEY", baseURL: "https://api.hormouz.net/v1" });
const response = await client.chat.completions.create({
  model: "upstage/solar-pro-3",
  messages: [{ role: "user", content: "Hello!" }],
});
console.log(response.choices[0].message.content);

Buy the Upstage: Solar Pro 3 API, paid in rial

  • Buy credit with an Iranian bank card; no foreign card or account needed.
  • One Hormouz key reaches Upstage: Solar Pro 3 and 600+ other models, and you pay only for what you use.
  • No VPN and no risk of a banned account; just change the base URL to api.hormouz.net/v1.
Create an account

Use via Hormouz

Connect to this model and 600+ others with one API key, then see usage down to each request.

Request company access

FAQ

How much does Solar Pro 3 cost?
Billing is usage-based: $0.15 per million input tokens and $0.60 per million output tokens. You pay only for what you use.
How do I access Solar Pro 3 from inside Iran?
Create an account on Hormouz and generate an API key. Hormouz provides a stable path to the model from inside Iran, with no foreign credit card or circumvention tooling required.
Is Solar Pro 3 compatible with OpenAI code?
Yes. Hormouz exposes an OpenAI-compatible API. Just change the base URL to Hormouz and swap in your Hormouz key. Your existing SDKs and code run without a rewrite.
Which languages does Solar Pro 3 support?
The model is optimized for Korean and also supports English and Japanese.
What capabilities does Solar Pro 3 have?
It offers step-by-step reasoning, tool calling and structured output, with a context window of up to 128K tokens.

Updated 2026-10-13