Solar Pro 4 API in India

In Indian rupees, the currency your card is charged in, with the published US dollar rate beside each.

For scale: 1,000 requests of about 3,000 tokens in and 1,000 out cost ₹80.26 — a long prompt and a page of answer each. Every rate is published and stays the same from one request to the next. See every model.

Prices are our published US dollar rates converted at ₹98.00 to the dollar, our rate for October — the same rate your card is charged.

Solar Pro 4 is the commercial flagship of Upstage, the Korean AI company, rebuilt for agent work. Its defining trait is restraint: Upstage designed it to say it cannot verify a claim instead of inventing one, and to answer from the evidence in long, multi-document inputs. That roughly tripled its Artificial Analysis Intelligence Index score over Solar Pro 3, to 42.

Upstage officially supports English, Korean and Japanese, and reports 89.0% on GPQA Diamond. Some of its gains come from declining to answer rather than knowing more — which is exactly what you want when the documents are contracts and reports.

• Questions over contracts, reports and other long documents.
• Banking and customer-service agents that must not guess.
• Korean and Japanese business documents.

• Slow on agent tasks: about 8.6 minutes per task in one independent test.
• Independent testing found a usable context of about 384K tokens, short of the 512K Upstage states.
• Well below the frontier models in absolute terms.

Roar AI provides access to Solar Pro 4 through the Roar AI gateway, charged in Indian rupees on one bill with every other model. Requests from India go through our gateway in Bangalore. Developers can use Solar Pro 4 alongside other supported models without a separate integration for every provider.

Use the OpenAI SDK you already have — point it at Roar AI and name the model. Read the docs.

from openai import OpenAI

client = OpenAI(base_url="https://api.roar-ai.com/v1", api_key="roar_live_…")

reply = client.chat.completions.create(
    model="solar-pro4",
    messages=[{"role": "user", "content": "Summarise this contract in plain English."}],
)

Solar Pro 4 is a frontier model, and requests are processed on international infrastructure, outside India. The model directory says where each model is processed.

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