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OpenAI · Chat

GPT-5.6 Sol API in India

OpenAI’s flagship from July 2026, kept for long coding work built on it. Priced in Indian rupees for teams in India, on the same key as every other model.

Input₹403.76per 1M tokens
Output₹2,018.80per 1M tokens
BillingOne bill, in INRwith every other model

GPT-5.6 Sol API pricing in India

Input₹403.76 per 1M tokens · $4.12
Output₹2,018.80 per 1M tokens · $20.60
Cached input₹40.38 per 1M tokens · $0.412
Cache write₹504.70 per 1M tokens · $5.15
Batch input₹201.88 per 1M tokens · $2.06
Batch output₹1,009.40 per 1M tokens · $10.30

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 ₹3,230.08 — 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.

About GPT-5.6 Sol

GPT-5.6 Sol led OpenAI’s line from July 2026 until GPT-6 arrived in September. OpenAI positioned it as its strongest model for coding, science and security at the time, and it still holds one of the better coding scores here: 72.7% on DeepSWE, higher than the GPT-6 Sol that replaced it.

Its reasoning runs from none to max. Reviewers found it more willing than earlier GPTs to go beyond what it was asked, which suits long agent tasks and needs watching in anything customer-facing. Newer GPT-6 models now do most of the same work for less.

What is GPT-5.6 Sol good for?

  • Long coding tasks that need planning and follow-through.
  • Security research.
  • Products validated on GPT-5.6 that should not change model.

Where to be careful

  • Can act beyond what you asked. Keep a person or a check in the loop for actions that matter.
  • Slow to start at high effort: one independent measurement put the wait before the first word at over two minutes.
  • Its knowledge stops in February 2026, and the GPT-6 models have overtaken it.

Specs

Made byOpenAI
ReleasedJuly 2026
TypeChat
Context window1.05M tokens
Longest answer128K tokens
ReadsText, Images
Thinks before answeringYes, adjustable
WeightsClosed
Processed inGlobal
Model idgpt-5.6-sol

Using GPT-5.6 Sol from India

Roar AI provides access to GPT-5.6 Sol 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 GPT-5.6 Sol 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="gpt-5.6-sol",
    messages=[{"role": "user", "content": "Summarise this contract in plain English."}],
)

Where is GPT-5.6 Sol processed?

GPT-5.6 Sol is a frontier model, and requests are processed on international infrastructure, outside India. The model directory says where each model is processed.

Questions

How much does GPT-5.6 Sol cost in India?

Input is ₹403.76 per 1M tokens; output is ₹2,018.80 per 1M tokens. For scale, 1,000 requests of about 3,000 tokens in and 1,000 out cost ₹3,230.08. 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. The rate is published and does not change from one request to the next.

Is GPT-5.6 Sol open source?

No. OpenAI does not publish the weights, so it is only available through an API like this one.

Try GPT-5.6 Sol
on one key

Sign up, get a key and call it with the SDK you already use. Pay in your local currency, on one bill.