GPT 5.6 Terra Pro API Pricing & Quick Start

Name: GPT 5.6 Terra Pro API
Brand: OpenAI

20% OFF

GPT-5.6 Terra Pro is the same underlying model as GPT-5.6 Terra, served with `reasoning.mode` set to `pro` for higher-quality responses on complex tasks. Learn more in OpenAI's docs: https://developers.openai.com/api/docs/guides/reasoning#reasoning-mode

Pricing

Long-context tiered pricing

	Input Price	Output Price
Base rate	$2.00	$12.00
Input over >272K	$4.00	$24.00

💱 USD/NTD = 31.56 · before tax · updated 09/13/2026

Provider	OpenAI
Released	July 2026
Model ID	`openai/gpt-5.6-terra-pro`

Technical specifications

Context window

1M tokens

Reasoning

Yes

Input

FileImageText

Output

Text

Quick Start

Use GPT 5.6 Terra Pro via BazaarLink API — just change the base_url:

Python

from openai import OpenAI

client = OpenAI(
    base_url="https://api.bazaarlink.ai/v1",
    api_key="sk-bl-YOUR_API_KEY",
)

response = client.chat.completions.create(
    model="openai/gpt-5.6-terra-pro",
    messages=[{"role": "user", "content": "Hello!"}],
)
print(response.choices[0].message.content)

TypeScript

import OpenAI from "openai";

const client = new OpenAI({
  baseURL: "https://api.bazaarlink.ai/v1",
  apiKey: "sk-bl-YOUR_API_KEY",
});

const response = await client.chat.completions.create({
  model: "openai/gpt-5.6-terra-pro",
  messages: [{ role: "user", content: "Hello!" }],
});
console.log(response.choices[0].message.content);

Why use GPT 5.6 Terra Pro via BazaarLink?

✓USD billing (TWD-quoted) + unified invoices — no foreign credit card needed for Taiwan teams
✓OpenAI-compatible API — zero code changes required
✓Automatic failover — multi-provider redundancy for the same model
✓Chinese-language support — local team, instant help

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Frequently Asked Questions

What is GPT 5.6 Terra Pro?

How much does the GPT 5.6 Terra Pro API cost?

GPT 5.6 Terra Pro costs $2.00 per 1M input tokens and $12.00 per 1M output tokens when accessed through BazaarLink.

How do I use GPT 5.6 Terra Pro with the OpenAI SDK?

Set base_url to "https://api.bazaarlink.ai/v1" and use model ID "openai/gpt-5.6-terra-pro". All OpenAI SDK methods (chat.completions, embeddings, streaming) work without code changes.

What is the context window for GPT 5.6 Terra Pro?

GPT 5.6 Terra Pro supports a context window of 1,050,000 tokens.

Is GPT 5.6 Terra Pro available for free?

GPT 5.6 Terra Pro is a paid model. BazaarLink offers free trial credits on registration so you can test it without a credit card.

Relay integrity checks

No integrity-check data is available for this model yet.

BazaarLink Probe verifies endpoints that claim to serve this model and flags behavior that differs from the reference baseline.

View the full integrity report →